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Eumaeus's Progress

#1 · May 16, 2024, 2:36 pm

Quote from Eumaeus on May 16, 2024, 2:36 pm
When Ulysses returned from the war of Troy, a ragged beggar worn out by 10 years of war in Troy followed by 10 years of the most gruesome homecoming journey, Eumaeus was the first person Ulysses met in Ithaca, his servant and friend, who helped him regain his wife, his kingdom and good fortune.

Introduction

I’m 64 years old, a European engineer by training and a small business manager by trade. My health has been reasonably good, I haven’t been plagued by anything lethal and I count my good fortune as I see the first of my friends pass away.

My health so far

But I wouldn’t say my health has been optimal either. From early adulthood onwards, I was plagued by inexplicable weight issues that remained enigmatic. I used to travel a lot, and would systematically put weight on when I’d go to Canada or the USA (about a kilo a week, which is a lot), despite the fact I’d be very picky and choosy about what I ate there.

And then, just as inexplicably, I’d lose about a kilo a week when I went to India or Japan, although once I knew about this, I would eat to my heart’s content and just splurge.

I started greying and balding in my early 30’s. In my 40’s my eyesight started declining, which I was upset about, because I’d enjoyed being a good shot when I was in the military .

In my 50’s, I travelled less and my weight stopped swinging up and down. It just went up slow and steady, 1 or 2 kilos a year. Not much, but does it add after a decade! I tried a number of diets, especially of the high protein / high vegetable variety. But nothing seemed to work.

In 2016 I developed the first symptoms of hay fever and other allergies I’d never had before. Eventually I stopped cheese from January to June. And hence felt entitled to eat twice as much from July to December! That actually worked rather well for the allergies. But I also started being plagued by inexplicable joint problems. The left knee was first to hurt and feel loose. It would knock itself regularly out of place. Next came arthritis in the right shoulder and arm.

In 2020, just as Covid was invading the world, an unexplained inflammation invaded my private parts, and just persisted, on and off from then on. There was no objective reason for it and no cure either. It wasn’t painful and did not make me dysfunctional. It was just bothersome and unexplained. My eating habits were not disastrous, I thought, but I did have a soft spot for cheese. I loved liver but didn’t get it often, since my wife didn't like it. During Covid though, we both took cod liver on a regular basis, as it was said that high Vitamin D we good against coronavirus. That same year, I saw a nutritionist who said my cells were probably starved of vitamin and minerals, and prescribed a multivitamin supplementation which I took until last month.

In the spring of 2023, I discovered I could no longer digest alcohol properly. Not that I was a heavy drinker, I never drank large amounts, but I’d drink often, the really good stuff, I have plenty of friends in the wine trade. And then, out of the blue, even just one glass of wine would bring about headaches, cause diarrhoea and make me feel as if my whole digestive tract was “blocked”.
- Damn it, one glass, I would rage! And that feeling of all my energy being blocked could take days to go away.

In September 2023, after an intense bout of stress, the upper parts of my left foot just kind of froze. Soon followed by the right foot about two weeks later. Getting out of bed in the morning became an agony, it was like walking on pins and needles, all the parts of the foot that are normally supposed to “move” feeling as if they were glued to each other and had become inelastic. I understood that, if I stopped walking and hiking, my life and health would slowly descend into agony. Just about at the same moment, a rough patch of grey looking skin appeared above my right eyelid.
- Where did that come from, I wondered gloomily, as I probed it with a finger?

300 to 400% RDA Vitamin A

And so things might have remained to the end of my life. The writing was on the wall. Eumaeus, your health is declining, I thought, but what could I do? I’d stopped cheese six months a year, strongly reduced alcohol, was leading a “healthy lifestyle”, exercising daily and taking multivitamins. But on April 1^st 2024 – not an April’s fool’s day joke, but a friend’s birthday, I went to his party, had more champagne than I am willing to acknowledge here and heard about Grant Genereux’s blog for the first time. Oh my, I realised, this sounds interesting.

Within days, I’d read two of Grant’s Ebooks and started looking up my food’s Vitamin A contents. The multivitamin tablets were the first to go into the bin, since each contained 100% RDA of Vitamin A. Next went the half-finished butter and margarine pots – we had both in the fridge and I enjoyed splashing them thick over slices of bread. Marrows and sweat potatoes were reassigned to the compost heap.

After some simple math, I estimated I has been on a daily average of 300% to 400% RDA of Vitamin A in the autumn (when I ate cheese and dairy). And probably something like 100% less in spring.

Eventually, I decided against going totally vitamin A free. But I would forgo all the heavy Vitamin A contributors, which was easy enough, and compatible with my job and lifestyle. And would probably bring me down to 10 or 20% of Vitamin A RDA on average.

Results after one month

The only thing that appeared at short notice were strange bouts of depression. Fortunately, my friend who’d told me about Grant had warned me about those. I returned to this blog, read somebody’s post about supplementing with active coal, did that and the symptoms subsided.

And then for roughly 25 days, nothing else happened. Until one morning, I lurched out of bed and headed towards the bathroom. And I’d almost gotten there when I stopped dead in my tracks. Where’s my pain in my feet, I wondered? One doesn’t realise how attached one is to one’s pain until it goes. I took a few more steps and still no pain. It’s bound to come back, I sighed. But it didn’t. Not that day, nor the next. And now it’s been almost 3 weeks, and it’s still gone.
- Oh my God, I thought, this sh*t is really working! And I made a mental note to light a candle to Saint Grant the Generous for the providential hand he'd just had in my fate.

My next surprise was that my eyesight surprisingly improved. I tend to do the same crossword puzzles at the same table of the same café and in the same light conditions once a week. And suddenly, I realised I was doing them without glasses.
- Wait a minute, I wondered, what's up? Not that it has returned to how it was 40 years ago but... Any improvement is welcome!

Other than that, my other ailments remained more or less unchanged. With the exception of the patch of rough grey skin above the right eyelid which disappeared by about 80%. And the total absence of “blocked digestion after alcohol” syndrome. With the one exception of that single day on which I had some yummy Parmesan cheese over some delicious pasta (just a weeeeee exception, I’d pleaded with myself). And paid it with a splitting headache and intense blocked feelings all over.
- Wait a minute, you're not saying you are going to go on with this, my wife objected in early May? She'd googled the official health websites about Vitamin A and come to the conclusion I was stark raving mad.
- Sure as hell, I am, I grinned!

When Ulysses returned from the war of Troy, a ragged beggar worn out by 10 years of war in Troy followed by 10 years of the most gruesome homecoming journey, Eumaeus was the first person Ulysses met in Ithaca, his servant and friend, who helped him regain his wife, his kingdom and good fortune.

Introduction

I’m 64 years old, a European engineer by training and a small business manager by trade. My health has been reasonably good, I haven’t been plagued by anything lethal and I count my good fortune as I see the first of my friends pass away.

My health so far

But I wouldn’t say my health has been optimal either. From early adulthood onwards, I was plagued by inexplicable weight issues that remained enigmatic. I used to travel a lot, and would systematically put weight on when I’d go to Canada or the USA (about a kilo a week, which is a lot), despite the fact I’d be very picky and choosy about what I ate there.

And then, just as inexplicably, I’d lose about a kilo a week when I went to India or Japan, although once I knew about this, I would eat to my heart’s content and just splurge.

I started greying and balding in my early 30’s. In my 40’s my eyesight started declining, which I was upset about, because I’d enjoyed being a good shot when I was in the military .

In my 50’s, I travelled less and my weight stopped swinging up and down. It just went up slow and steady, 1 or 2 kilos a year. Not much, but does it add after a decade! I tried a number of diets, especially of the high protein / high vegetable variety. But nothing seemed to work.

In 2016 I developed the first symptoms of hay fever and other allergies I’d never had before. Eventually I stopped cheese from January to June. And hence felt entitled to eat twice as much from July to December! That actually worked rather well for the allergies. But I also started being plagued by inexplicable joint problems. The left knee was first to hurt and feel loose. It would knock itself regularly out of place. Next came arthritis in the right shoulder and arm.

In 2020, just as Covid was invading the world, an unexplained inflammation invaded my private parts, and just persisted, on and off from then on. There was no objective reason for it and no cure either. It wasn’t painful and did not make me dysfunctional. It was just bothersome and unexplained. My eating habits were not disastrous, I thought, but I did have a soft spot for cheese. I loved liver but didn’t get it often, since my wife didn't like it. During Covid though, we both took cod liver on a regular basis, as it was said that high Vitamin D we good against coronavirus. That same year, I saw a nutritionist who said my cells were probably starved of vitamin and minerals, and prescribed a multivitamin supplementation which I took until last month.

In the spring of 2023, I discovered I could no longer digest alcohol properly. Not that I was a heavy drinker, I never drank large amounts, but I’d drink often, the really good stuff, I have plenty of friends in the wine trade. And then, out of the blue, even just one glass of wine would bring about headaches, cause diarrhoea and make me feel as if my whole digestive tract was “blocked”.
- Damn it, one glass, I would rage! And that feeling of all my energy being blocked could take days to go away.

In September 2023, after an intense bout of stress, the upper parts of my left foot just kind of froze. Soon followed by the right foot about two weeks later. Getting out of bed in the morning became an agony, it was like walking on pins and needles, all the parts of the foot that are normally supposed to “move” feeling as if they were glued to each other and had become inelastic. I understood that, if I stopped walking and hiking, my life and health would slowly descend into agony. Just about at the same moment, a rough patch of grey looking skin appeared above my right eyelid.
- Where did that come from, I wondered gloomily, as I probed it with a finger?

300 to 400% RDA Vitamin A

And so things might have remained to the end of my life. The writing was on the wall. Eumaeus, your health is declining, I thought, but what could I do? I’d stopped cheese six months a year, strongly reduced alcohol, was leading a “healthy lifestyle”, exercising daily and taking multivitamins. But on April 1^st 2024 – not an April’s fool’s day joke, but a friend’s birthday, I went to his party, had more champagne than I am willing to acknowledge here and heard about Grant Genereux’s blog for the first time. Oh my, I realised, this sounds interesting.

Within days, I’d read two of Grant’s Ebooks and started looking up my food’s Vitamin A contents. The multivitamin tablets were the first to go into the bin, since each contained 100% RDA of Vitamin A. Next went the half-finished butter and margarine pots – we had both in the fridge and I enjoyed splashing them thick over slices of bread. Marrows and sweat potatoes were reassigned to the compost heap.

After some simple math, I estimated I has been on a daily average of 300% to 400% RDA of Vitamin A in the autumn (when I ate cheese and dairy). And probably something like 100% less in spring.

Eventually, I decided against going totally vitamin A free. But I would forgo all the heavy Vitamin A contributors, which was easy enough, and compatible with my job and lifestyle. And would probably bring me down to 10 or 20% of Vitamin A RDA on average.

Results after one month

The only thing that appeared at short notice were strange bouts of depression. Fortunately, my friend who’d told me about Grant had warned me about those. I returned to this blog, read somebody’s post about supplementing with active coal, did that and the symptoms subsided.

And then for roughly 25 days, nothing else happened. Until one morning, I lurched out of bed and headed towards the bathroom. And I’d almost gotten there when I stopped dead in my tracks. Where’s my pain in my feet, I wondered? One doesn’t realise how attached one is to one’s pain until it goes. I took a few more steps and still no pain. It’s bound to come back, I sighed. But it didn’t. Not that day, nor the next. And now it’s been almost 3 weeks, and it’s still gone.
- Oh my God, I thought, this sh*t is really working! And I made a mental note to light a candle to Saint Grant the Generous for the providential hand he'd just had in my fate.

My next surprise was that my eyesight surprisingly improved. I tend to do the same crossword puzzles at the same table of the same café and in the same light conditions once a week. And suddenly, I realised I was doing them without glasses.
- Wait a minute, I wondered, what's up? Not that it has returned to how it was 40 years ago but... Any improvement is welcome!

Other than that, my other ailments remained more or less unchanged. With the exception of the patch of rough grey skin above the right eyelid which disappeared by about 80%. And the total absence of “blocked digestion after alcohol” syndrome. With the one exception of that single day on which I had some yummy Parmesan cheese over some delicious pasta (just a weeeeee exception, I’d pleaded with myself). And paid it with a splitting headache and intense blocked feelings all over.
- Wait a minute, you're not saying you are going to go on with this, my wife objected in early May? She'd googled the official health websites about Vitamin A and come to the conclusion I was stark raving mad.
- Sure as hell, I am, I grinned!

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#2 · June 2, 2024, 2:16 am

Quote from Eumaeus on June 2, 2024, 2:16 am

How many croissants does it take to kill a Frenchman?

Well… It’s a topic to brood about on this second month of low Vitamin A diet. I was feeling very buoyant at the end of the first month, fancy walking on painless feet for the first time in 8 months! God bless Grant had become my mantra. So, what about relaxing a bit, I thought? I could possibly be less obsessional about it, go up to 30% RDA of Vitamin A on some days, rather that stick to the more or less 5% range I was at previously.

And this is when I went to my favourite bakery one Monday morning. They have the most exquisite Almond Croissants. These being normal butter croissants (credited with 200 µg Retinol) with a butter based almond filling, they probably represent about 300 µg Retinol intake. Hum that was so delicious. Too delicious not to repeat, I returned and got myself another of the same on Tuesday and Wednesday. When time to get out of bed arrived on Thursday morning … Ouch! The inflamed feeling in the feet was returning. Not as bad as it used to be but… I could see the writing on the wall. Another two or three of those croissants and I’d be back on my way to hell. Eventually, the pain / symptoms took a full week to subside again.

Other than that, the unexpected news is that the patch of dry skin on my right elbow cleared away completely. The skin just became soft and supple again. I’d acquired that patch one summer at the age of 16 when I was working on a dairy farm, and somehow ascribed it to the hard labor. But come to think of it, the farmer’s wife who fed us was an exceptional cook and she made lavish use of butter and cream directly from her cows. Poor thing passed away from cancer at the age of 50.

My main surprise has been how pleasantly warm I have been feeling all the time, as if my metabolism has been cranked up by a few notches, giving me pleasant bodily feelings of “plentiful energy” I had not had since my early adulthood. I’ve been pleasantly warm at night, during the day time, in a very constant kind of way.

At the beginning of the month, I had an unexpected craving for sugar. When I wasn’t eating croissants, I was generally satisfying it with dried raisins. But that subsided just as spontaneously as it appeared.

I have kept on the active charcoal supplementation I started last month, which seems to cancel out the feelings of depression or keep them very mild.

Over the last few days I have had strange symptoms that could be Covid or flu related (I was after all at a public venue with plenty of people for 3 days). But I’ve been wondering if it’s not some sort of detox syndrome. I feel feverish but not warm, my skin is constantly, day and night, exuding some sort of cold sweat that leaves my clothes and sheets drenched. I’ve lost 4 pounds (2 kg) in a week and my back is just a tingling mass of electricity. Anybody have some feed-back on this?

How many croissants does it take to kill a Frenchman?

Well… It’s a topic to brood about on this second month of low Vitamin A diet. I was feeling very buoyant at the end of the first month, fancy walking on painless feet for the first time in 8 months! God bless Grant had become my mantra. So, what about relaxing a bit, I thought? I could possibly be less obsessional about it, go up to 30% RDA of Vitamin A on some days, rather that stick to the more or less 5% range I was at previously.

And this is when I went to my favourite bakery one Monday morning. They have the most exquisite Almond Croissants. These being normal butter croissants (credited with 200 µg Retinol) with a butter based almond filling, they probably represent about 300 µg Retinol intake. Hum that was so delicious. Too delicious not to repeat, I returned and got myself another of the same on Tuesday and Wednesday. When time to get out of bed arrived on Thursday morning … Ouch! The inflamed feeling in the feet was returning. Not as bad as it used to be but… I could see the writing on the wall. Another two or three of those croissants and I’d be back on my way to hell. Eventually, the pain / symptoms took a full week to subside again.

Other than that, the unexpected news is that the patch of dry skin on my right elbow cleared away completely. The skin just became soft and supple again. I’d acquired that patch one summer at the age of 16 when I was working on a dairy farm, and somehow ascribed it to the hard labor. But come to think of it, the farmer’s wife who fed us was an exceptional cook and she made lavish use of butter and cream directly from her cows. Poor thing passed away from cancer at the age of 50.

My main surprise has been how pleasantly warm I have been feeling all the time, as if my metabolism has been cranked up by a few notches, giving me pleasant bodily feelings of “plentiful energy” I had not had since my early adulthood. I’ve been pleasantly warm at night, during the day time, in a very constant kind of way.

At the beginning of the month, I had an unexpected craving for sugar. When I wasn’t eating croissants, I was generally satisfying it with dried raisins. But that subsided just as spontaneously as it appeared.

I have kept on the active charcoal supplementation I started last month, which seems to cancel out the feelings of depression or keep them very mild.

Over the last few days I have had strange symptoms that could be Covid or flu related (I was after all at a public venue with plenty of people for 3 days). But I’ve been wondering if it’s not some sort of detox syndrome. I feel feverish but not warm, my skin is constantly, day and night, exuding some sort of cold sweat that leaves my clothes and sheets drenched. I’ve lost 4 pounds (2 kg) in a week and my back is just a tingling mass of electricity. Anybody have some feed-back on this?

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#3 · June 2, 2024, 7:18 am

All this is very encouraging @Eumaeus!

As to Covid symptoms, this is a problem we encounter too now. Because at present there are a big variety of variants, some of them due to the vaccination that encourages new strains, it is getting difficult to separate responses to viruses from vA detox symptoms. However, the fact that you have been losing weight might indicate that this is a bunch of detox reactions. Certainly the warm feelings are a sign that your metabolism is more efficient. Whether of not it is due to Covid or some other virus, you are eliminatng vA products in the sweat. Good for you!
The disappearance of the patch of dry skin on your elbow is also very interesting. Because it has accompanied you for 48 years, and survived all the different diets/therapies you have been exposing it too, it is very significant. Especially since you have not been focusing your attention on it, acting on its presence with the leverage of concentration. This is exactly the kind of surprise you could make great use of. Because I think that vA plays a very important role in memory and forgiveness, there is a direct link to some memory stored in that patch. A memory that now has lost its emotional importance. Without it, you are now different, closer to the unblemished real you.

Good luck for your vA adventures and thank you for keeping us informed!

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#4 · October 13, 2024, 6:46 am

Japan, oh Japan - 4 month report

I have not written anything here for a while, but essentially there has not been much to say, and I have been busy elsewhere. Back in June, when I saw patches of dry skin peel of my elbows, I freaked out briefly. How many equivalent patches of dry membranes did my body contain, that I could not see and had no perception of?

In any case, I have been sticking to my low Vit A diet ever since, and found what appears to be a decent level of balance. The symptoms that disappeared in the first two months have remained gone, and nothing much else has happened. Except Japan. I spent three weeks there in July and am still trying to figure out what happened. Japanese people are way healthier than their western counterparts, and live substantially longer. I avoided a few local specialities like eal and kombu algae that are rich in retinol, and thought all the rest would be ok. Japanese food contains no dairy, negligible quantities of eggs, few vegetables and nothing with high counts of beta carotene. So I thought it would be a sail through. But it wasn't. There is something in the Japanese diet that affects my joints, and I kept having strange aches in the knees, in the shoulders, popping up one day, disappearing the next, that I could not make head or tail of. I reflected on this and observed I had had similar problems on previous trips to Japan. There is something I take in there that does not agree with me, and elicits symptoms that are somewhat like Vit A poisoning, except they appear and disappear more fleetingly.
Anybody have an idea what it might be ?

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#5 · October 13, 2024, 6:57 am

Did you eat a lot of soy sauce? I was eating that everyday for a month and it was estrogenic for me.

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#6 · October 14, 2024, 5:12 am

Do you react like that to all travel? I mean, perhaps you are sleeping in beds your shoulders aren't used to, doing more walking than your knees are used to, etc. I also find that I cannot sit still for very long and I can imagine you had to sit still for a very long flight. (Jury duty is also hard for me!).

Soy Sauce, as Janelle pointed out, might have lots of amines too. I don't do well with amines, although I do use a little soy sauce, it's so helpful in marinades. Much less than you would be eating in Japan, tho.

Husband and I are just "creaky" and not very flexible and I sometimes think we are just going to have to deal with it for a loooong time. But we are on the very slow boat. He has begun a stretching program and I guess I'm supposed to as well...

#7 · October 16, 2024, 8:03 pm

Quote from David on October 16, 2024, 8:03 pm
@eumaeus

First I was thinking of suggesting increased radioactivity exposure, but perhaps you went to Japan before Fukushima in 2011.

Then I found that it is well-known for a long time that Japan has the highest incidence of gastric cancer in the world. See this 2001 paper (available at sci-hub) called:
"Relationship between mineral and trace element concentrations in drinking water and gastric cancer mortality in Japan "
https://doi.org/10.1207/S15327914NC402_4

First sentence in the abstract, which indicates that it might be a general problem in Japan:
"It is well known that the incidence and mortality from gastric cancer in Japan are the highest in the world."

Excerpt from the paper:
"We found a significant relationship, using multiple regression analysis, between the age-adjusted mortality rate from gastric cancer and Se, Zn, Pb, Sr, and Au concentrations, with Se and Zn being preventive and the others being promoting."

So perhaps you have gotten more lead or strontium from the drinking water in Japan?
See the attached table 2 and 3 for more data from the study.

From English wikipedia on strontium:
"In adults, strontium consumed tends to attach only to the surface of bones, but in children, strontium can replace calcium in the mineral of the growing bones and thus lead to bone growth problems.[85]

The biological half-life of strontium in humans has variously been reported as from 14 to 600 days,[86][87] 1,000 days,[88] 18 years,[89] 30 years[90] and, at an upper limit, 49 years.[91] The wide-ranging published biological half-life figures are explained by strontium's complex metabolism within the body. However, by averaging all excretion paths, the overall biological half-life is estimated to be about 18 years.[92] The elimination rate of strontium is strongly affected by age and sex, due to differences in bone metabolism.[93]"
https://en.wikipedia.org/wiki/Strontium

PS. There seems to be low radioactivity in Japanese food:
https://www.pref.fukushima.lg.jp/site/portal-english/en-4-2-2.html

Thought there can probably leak out a bit of strontium-90 which is a known waste-product from nuclear powerplants as per another English wikipedia article:
"90Sr is a product of nuclear fission. It is present in significant amount in spent nuclear fuel, in radioactive waste from nuclear reactors and in nuclear fallout from nuclear tests.
...
Strontium-90 is a "bone seeker" that exhibits biochemical behavior similar to calcium, the next lighter group 2 element.[4][11] After entering the organism, most often by ingestion with contaminated food or water, about 70–80% of the dose gets excreted.[3] Virtually all remaining strontium-90 is deposited in bones and bone marrow, with the remaining 1% remaining in blood and soft tissues.[3]"
https://en.wikipedia.org/wiki/Strontium-90

In the end I think this strontium connection ties it together with my original suspicion of your Japanese gut problems being related to radioactivity, if only indirectly.

@eumaeus

First I was thinking of suggesting increased radioactivity exposure, but perhaps you went to Japan before Fukushima in 2011.

Then I found that it is well-known for a long time that Japan has the highest incidence of gastric cancer in the world. See this 2001 paper (available at sci-hub) called:
"Relationship between mineral and trace element concentrations in drinking water and gastric cancer mortality in Japan "
https://doi.org/10.1207/S15327914NC402_4

First sentence in the abstract, which indicates that it might be a general problem in Japan:
"It is well known that the incidence and mortality from gastric cancer in Japan are the highest in the world."

Excerpt from the paper:
"We found a significant relationship, using multiple regression analysis, between the age-adjusted mortality rate from gastric cancer and Se, Zn, Pb, Sr, and Au concentrations, with Se and Zn being preventive and the others being promoting."

So perhaps you have gotten more lead or strontium from the drinking water in Japan?
See the attached table 2 and 3 for more data from the study.

From English wikipedia on strontium:
"In adults, strontium consumed tends to attach only to the surface of bones, but in children, strontium can replace calcium in the mineral of the growing bones and thus lead to bone growth problems.[85]

The biological half-life of strontium in humans has variously been reported as from 14 to 600 days,[86][87] 1,000 days,[88] 18 years,[89] 30 years[90] and, at an upper limit, 49 years.[91] The wide-ranging published biological half-life figures are explained by strontium's complex metabolism within the body. However, by averaging all excretion paths, the overall biological half-life is estimated to be about 18 years.[92] The elimination rate of strontium is strongly affected by age and sex, due to differences in bone metabolism.[93]"
https://en.wikipedia.org/wiki/Strontium

PS. There seems to be low radioactivity in Japanese food:
https://www.pref.fukushima.lg.jp/site/portal-english/en-4-2-2.html

Thought there can probably leak out a bit of strontium-90 which is a known waste-product from nuclear powerplants as per another English wikipedia article:
"90Sr is a product of nuclear fission. It is present in significant amount in spent nuclear fuel, in radioactive waste from nuclear reactors and in nuclear fallout from nuclear tests.
...
Strontium-90 is a "bone seeker" that exhibits biochemical behavior similar to calcium, the next lighter group 2 element.[4][11] After entering the organism, most often by ingestion with contaminated food or water, about 70–80% of the dose gets excreted.[3] Virtually all remaining strontium-90 is deposited in bones and bone marrow, with the remaining 1% remaining in blood and soft tissues.[3]"
https://en.wikipedia.org/wiki/Strontium-90

In the end I think this strontium connection ties it together with my original suspicion of your Japanese gut problems being related to radioactivity, if only indirectly.

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