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The Zinc Connection - Firstenberg
Quote from
Ginny on February 13, 2026, 9:42 pm
So what happens if you get way over the RDA of zinc from the beans and beef from a cowboy diet? Will it store in a toxic way or be flushed ? 😳
So what happens if you get way over the RDA of zinc from the beans and beef from a cowboy diet? Will it store in a toxic way or be flushed ? 😳
Uploaded files:Quote from
Jiří on February 14, 2026, 3:04 am
@ginny you have to understand that you don't absorb what is in the food. What you absorb is much less even from supplements let alone food that has other minerals and stuff like antinutrients in beans etc.. that compete with each other for absorption in case of other minerals and in case of antinutrients block absorption..
That's why for example vegans often have perfect micronutrient intake when they look at some nutritional calculator that shoes what is in the food. But for example just because foods like almonds, spinach etc. have good amount of calcium doesn't mean you will absorb that calcium.. All those plant foods high in calcium are high in oxalates as well.. Which means the bioavailability of that calcium is very low in comparison with calcium sources like dairy or mineral water.. In case of zinc in beef you have iron they compete for absorption. Beans a lot of antinutrients and copper, manganese and other stuff all compete for absorption with zinc. Copper is for example much more easily absorbed than zinc is.
What I would add into your diet is some calcium. At least some mineral water rich in calcium/magnesium. I just sprinkle some calcium citrate powder on my meals..
@ginny you have to understand that you don't absorb what is in the food. What you absorb is much less even from supplements let alone food that has other minerals and stuff like antinutrients in beans etc.. that compete with each other for absorption in case of other minerals and in case of antinutrients block absorption..
That's why for example vegans often have perfect micronutrient intake when they look at some nutritional calculator that shoes what is in the food. But for example just because foods like almonds, spinach etc. have good amount of calcium doesn't mean you will absorb that calcium.. All those plant foods high in calcium are high in oxalates as well.. Which means the bioavailability of that calcium is very low in comparison with calcium sources like dairy or mineral water.. In case of zinc in beef you have iron they compete for absorption. Beans a lot of antinutrients and copper, manganese and other stuff all compete for absorption with zinc. Copper is for example much more easily absorbed than zinc is.
What I would add into your diet is some calcium. At least some mineral water rich in calcium/magnesium. I just sprinkle some calcium citrate powder on my meals..
lil chick, Livy and Ginny have reacted to this post.
Quote from
Ginny on February 14, 2026, 8:46 pm
What I would add into your diet is some calcium. At least some mineral water rich in calcium/magnesium. I just sprinkle some calcium citrate powder on my meals..
@jiri
My well water is hard and leaves deposits, I will have it tested again and see what the calcium numbers are in it.
What amount of calcium am I looking for in bottled water? I looked on the bottle I got last time I went to town:
Nutrients
Naturally balanced 8.0 ph
• Measured in milligrams per Liter (mg/L) and is equivalent to parts per million (ppm)
• Calcium (Ca) 67.0 mg/L
• Chloride (Cl) 0.8mg/L
• Fluoride (F) 0.6mg/L
• Magnesium (Mg) 19.0 mg/L
• Nitrate (NO3 as N) 0.16 mg/L
• Potassium (K) 0.7 mg/L
• Silica (SiO2) 6.9 mg/L
• Sodium (Na) 2.0 mg/L
• Sulfate (SO4) 85.0 mg/L
• Bicarbonates (HCO3) 205.0 mg/L
• TDC (total dissolved solids) 297.0 mg/L
What I would add into your diet is some calcium. At least some mineral water rich in calcium/magnesium. I just sprinkle some calcium citrate powder on my meals..
My well water is hard and leaves deposits, I will have it tested again and see what the calcium numbers are in it.
What amount of calcium am I looking for in bottled water? I looked on the bottle I got last time I went to town:
Nutrients
Naturally balanced 8.0 ph
• Measured in milligrams per Liter (mg/L) and is equivalent to parts per million (ppm)
• Calcium (Ca) 67.0 mg/L
• Chloride (Cl) 0.8mg/L
• Fluoride (F) 0.6mg/L
• Magnesium (Mg) 19.0 mg/L
• Nitrate (NO3 as N) 0.16 mg/L
• Potassium (K) 0.7 mg/L
• Silica (SiO2) 6.9 mg/L
• Sodium (Na) 2.0 mg/L
• Sulfate (SO4) 85.0 mg/L
• Bicarbonates (HCO3) 205.0 mg/L
• TDC (total dissolved solids) 297.0 mg/L
Livy has reacted to this post.
Quote from
Jiří on February 15, 2026, 12:50 am
@ginny honestly like I said I would just buy calcium citrate powder for example from now foods that is good brand and just sprinkle some on each meal or if you want to know exactly calcium citrate tablets.. Something like 600mg of added calcium will be plenty.. With well water I would make sure it doesn't have toxic amounts of stuff like manganese or high iron content. You really want to filter that out..
@ginny honestly like I said I would just buy calcium citrate powder for example from now foods that is good brand and just sprinkle some on each meal or if you want to know exactly calcium citrate tablets.. Something like 600mg of added calcium will be plenty.. With well water I would make sure it doesn't have toxic amounts of stuff like manganese or high iron content. You really want to filter that out..
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