Questions tagged [vitamins-and-minerals]

Veg*n sources, optimal and adequate intakes, possible risks factors for deficiency or excess of vitamins and minerals relevant to veg*n diets and lifestyles

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25
votes
5answers
725 views

What is a good source of Vitamin B12 for a vegan?

My understanding is that Vitamin B12 is a vitamin that vegetarians and meat eaters get from animals and animal products; how can I obtain this vitamin as a vegan? Can I live without it safely?
30
votes
6answers
1k views

What are the main nutrient deficiency concerns for vegans?

What are the main nutrient deficiencies strict vegans are at risk of and how to avoid them?
8
votes
1answer
116 views

When taking B12 supplements, is it a viable strategy to take higher dose every few days as opposed to lower dose every day?

As a recently converted vegan, I first wanted to try out not taking B12 supplements to see if I can get the recommended RDA from fortified foods alone. This turned out to be rather hard and I average ...
7
votes
1answer
134 views

Do commercial chicken's eggs contain B12?

If chickens are fed with only treated grain, where do they obtain vitamin B12 from? Are these eggs a good source of vitamin B12?
11
votes
2answers
634 views

How to obtain the best iron absorption from spinach?

I've heard that while spinach contains plentiful amounts of iron, the iron content is hard for the human body to digest. Spinach contains oxalic acid that binds with some of the iron, making it ...
10
votes
2answers
748 views

Is Vitamin A plentiful in cooked or raw vegetables?

I have been under word-of-mouth impression that while vitamin A is most replete in meats, a vegan who eats nutrient rich vegetables or sweet potatoes and carrots intakes their full share. However, the ...
6
votes
2answers
126 views

Can too much B12 be harmful?

While I know that B12 is water-soluble vitamin and (as I understand it) it should be naturally expelled from the body, is this really the case even with continuously high intakes, eg. 1000mcg/day for ...
2
votes
1answer
42 views

Are vegetarian and vegan micronutrient needs the same as traditional diets?

Inspired from this question about macronutrients, here I propose the analogue for micronutrients: are vegetarian and vegan micronutrient needs the same as traditional diets? Does any factor in vegan ...
9
votes
4answers
148 views

Vegans: Besides supplements, what can substitute for Calcium?

The RDA for Calcium is 900 mg for adults: what are some good calcium sources for vegans? I already know of: Tofu Please exclude: Any Calcium pills or supplements. Milk and any dairy products. ...
7
votes
1answer
11k views

Are there risks from eating too much nutritional yeast?

Nutritional yeast is a very high source of protein with about 50% of energy coming from protein content in the food. In addition to protein, nutritional yeast also provides a variety of vitamins and ...
5
votes
2answers
50 views

How to identify a vegan supplement?

If I am considering supplements to balance my dietary intake, how do I identify if they are vegan? To clarify, if I have altered my diet to eliminate eating animals, how can I be sure that my ...
4
votes
1answer
132 views

How much orange juice should I drink to help absorb iron from spinach?

Spinach is sometimes considered a good source of iron, especially when paired with ascorbic acid (vitamin C) as described in this answer. If I am consuming spinach by blending it up in a smoothie, ...
3
votes
1answer
165 views

Is iron deficiency anemia more common among vegans?

Is iron deficiency (and more severely, iron deficiency anemia) more prevalent among vegans? I've heard people say that it's important to eat red meat to get iron, but I've also heard several anecdotes ...