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Cruciferous Vegetables
I'm posting this here because cabbage and cauliflower are quite low A and many here will probably consume them.
Tobacco smoke (Nicotiana tabacum) contains considerable amounts of cyanide (150–300 μg per cigarette). This is metabolized into thiocyanate in the body.
https://books.google.com.au/books?id=xsxzDAAAQBAJ&lpg=PT16&ots=PVhMLRyi3_&dq=Tobacco%20smoke%20(Nicotiana%20tabacum)%20also%20contains%20considerable%20amounts%20of%20cyanide%20(150%E2%80%93300%20%CE%BCg%20per%20cigarette).&pg=PT16#v=onepage&q=Tobacco%20smoke%20(Nicotiana%20tabacum)%20also%20contains%20considerable%20amounts%20of%20cyanide%20(150%E2%80%93300%20%CE%BCg%20per%20cigarette).&f=false
The average thiocyanate content of cauliflower is 8 mg per 100 grams.
So 100 grams of cauliflower has approximately 40x the thiocyanate content of a cigarette. Thiocyanate is goitrogenic:
Association of Tobacco Smoking With Goiter in a Low-Iodine-Intake Area
"Thiocyanate is abundant in cigarette smoke and exerts goitrogenic effects through competitive inhibition of iodine transport and organification."
"Half of goiter cases in this population could be ascribed to smoking."
https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/211207
Iodine Nutrition in Breast-Fed Infants Is Impaired by Maternal Smoking
"Smoking mothers had significantly higher serum levels of thiocyanate, which may competitively inhibit the sodium-iodide symporter responsible for iodide transport in the lactating mammary gland.
Smoking during the period of breastfeeding increases the risk of iodine deficiency-induced brain damage in the child."
https://academic.oup.com/jcem/article/89/1/181/2840313
So we are told how bad thiocyanate is in anti-smoking science yet at the same time told it is a health promoting phyto-chemical when it comes to eating cruciferous vegetables:
"The biological activities of glucosinolate-derived isothiocyanates and indole-3-carbinol likely contribute to the potential health-promoting effects of cruciferous vegetables."
https://lpi.oregonstate.edu/mic/food-beverages/cruciferous-vegetables
100 grams of cauliflower has approximately the same thiocyanate content of two packs of cigarettes. So either the anti-smoking science is hyperbole or the mainstream advice on cruciferous vegetable consumption understates the hazards.
Lol between this, oxolate and pufa We can all just go on the carnivore diet.
Haha yeah I can understand why many go that way.
I think a spoonful of sauerkraut is probably ok but I think the cauliflower rice crowd are probably overdoing it a little!
While I'm on the topic of thiocyanate it's worth pointing out that almonds will give you a decent dose as well if you eat more than a couple. I've been happily downing copious amounts of almond milk since going low A. This is probably a bad idea even if one has adequate iodine in ones diet.
"The cyanide level of cassava varies from about 75 to 350 ppm"
"According to reference [44], populations with very low iodine intake and high thiocyanate levels from consumption of cassava, showed severe endemic goiter, which decreases with iodine supplementation. Study has shown that consumption of cyanogenic glycosides even at a very low concentration can also cause iodine deficiency leading to goiter [45]."
This translates into 7.5 to 35 mg per 100 grams which is a similar cyanide level to cruciferous vegetables.
One should not eat their cruciferous' raw but cook them. They are goitogenic in their raw state. And as long as selenium and iodine status is okay you should be fine. Dr G has added more info on cruciferous in his list as well, some seems to be beneficial with A detox. There is a thread here somewhere explaining how cicaretts actually helps protecting you from vit A. One of our members noticed how smoking/not smoking affected him. Quite an interesting read.
One thing at least I have learned is everyrhing in moderation. Veggies should be garnish or a side dish, not the main course. Sauerkraut is a side dish, cauliflower rice would be a main course. Veggies are extremely trendy now, everyone should become a vegetarian "for the climate" *rolleye*. (at least in my country)
Edit: i just camw to think about Pauline Nordin, the bodybuilder behind "fighter diet" (meaning your main calories are veggies). She has had like 10-12 lbs of veggies daily for like 10+ years, mostly carrots and cabbage. Cabbage always cooked I think. She became hypothyroid aftet some time which she medicates for. Coincidence?
Quote from Liz on May 20, 2019, 9:40 pmOne should not eat their cruciferous' raw but cook them. They are goitogenic in their raw state. And as long as selenium and iodine status is okay you should be fine. Dr G has added more info on cruciferous in his list as well, some seems to be beneficial with A detox. There is a thread here somewhere explaining how cicaretts actually helps protecting you from vit A. One of our members noticed how smoking/not smoking affected him. Quite an interesting read.
One thing at least I have learned is everyrhing in moderation. Veggies should be garnish or a side dish, not the main course. Sauerkraut is a side dish, cauliflower rice would be a main course. Veggies are extremely trendy now, everyone should become a vegetarian "for the climate" *rolleye*. (at least in my country)
Edit: i just camw to think about Pauline Nordin, the bodybuilder behind "fighter diet" (meaning your main calories are veggies). She has had like 10-12 lbs of veggies daily for like 10+ years, mostly carrots and cabbage. Cabbage always cooked I think. She became hypothyroid aftet some time which she medicates for. Coincidence?
Hi Liz,
Yeah cooking helps but certainly doesn't come close to eliminating the goitrogenic effect. I agree that veges should def be a garnish rather than a side dish. The main benefit I see from crucifers is their Vitamin C content but that can easily be obtained from other foods so I'm interested as to whether or not crucifers should be eaten at all. Like you I think a small amount should be fine. However, because iodine is often a scarce nutrient (especially on a low A diet) and because sufficient iodine does not completely eliminate the thyroid toxic effect I think the issue of whether goitrogenic foods should be in the diet is a good issue to explore.
What's your opinion on indole-3-carbinol. I see it as a supplement everywhere now.
Bodybuilders lol
I took DIM and indole-3-carbinol a few years ago for estrogen dominance, then later broccoli sprouts - one tablespoon daily.