Questions tagged [supplements]

Obtaining nutrients from non-food sources such as pills, powders, or injections.

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5
votes
2answers
105 views

Should vitamin B12 supplement be taken at a specific time of day?

I heard that vitamin B12 absorption can vary based on time of day and the most recent mealtime, and also that acid-reflux drugs might interfere with B12 absorption. What is the optimal time of day to ...
4
votes
3answers
205 views

Is iron supplementation necessary?

From what I understand animal iron and vegetable based iron are different. Heme iron is apparently more bio-available. According to what I have read humans only absorb 5% of the iron that is available ...
3
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4answers
130 views

Why do vegan doctors recommend B12 every day/week?

For example, Dr. Michael Greger (of NutritionFacts) recommends: For adults under age 65, the easiest way to get B12 is to take at least one 2,500 mcg supplement each week or a daily dose of 250 mcg....
2
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2answers
153 views

In order to prevent thrombosis, what supplements should vegans take?

In order to avoid thrombosis and for good heart health, what supplements should vegans take? Would taking white egg or yolk or milk cure thrombosis disease?
8
votes
1answer
288 views

How common is it for the livestock industry to supplement B12?

In debates, the contra side often claims veganism can’t be good because vegans have to supplement B12 (appeal to nature), while the pro side sometimes claims that even carnists supplement B12 ...
17
votes
3answers
5k views

Where does the B12 in vitamin supplements come from?

I know that many animal products contain vitamin B12 and that it's very hard or even impossible to get enough from plant-based food. There are supplements which vegans should take. But what are these ...
3
votes
3answers
138 views

Is it necessary to take supplements when starting with vegetarianism?

I reduced meats some months ago and about a month ago I decided to go vegetarian. My objective is to go raw-vegan in the future. I have researched a bit and some sources recommend taking vitamin D, ...
9
votes
1answer
133 views

Are (plant-based) vitamin D₂ supplements as effective as vitamin D₃?

Many vegans and non-vegans have low vitamin D levels. Apart from synthesizing it with sunlight, it is possible to ingest it from the diet, but there are no natural, reliable vegan sources of vitamin D,...
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 ...
17
votes
1answer
215 views

Different types of B12?

I've realized that there are different types of B12 supplements. Most of them are from Cyanocobalamin, but there are also from Methylcobalamin. Does anybody know the differences or what is the best ...
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 ...
8
votes
3answers
336 views

Are there vegan Omega 3 pills?

I am being treated for ADHD and BiPolar disorder. My doctor advises me to take Omega 3 supplements. For about 15 years I have been following vegetarian diet. I found being so I found myself having ...
8
votes
2answers
82 views

Is there a protocol to help vegetarians/vegan chose the right concentration for B12 supplements?

Following this question, I am wondering if there is a clear protocol/algorithm (I do not know the exact medical term) that a vegetarian/vegan can use to compute the recommended daily amount of B12 (...
8
votes
1answer
115 views

What nutrients should vegetarians supplement while weight training?

I have just started serious weight training (3 days a week powerlifting) and I have been eating vegetarian for the most part for years. I am concerned that the extra demands on my body from ...
8
votes
1answer
97 views

Are calcium supplements harmful compared to calcium in whole foods?

I'm trying to be vegan, but it seems that vegan foods lack sufficient calcium to meet the Recommended Daily Intake of 1000 mg/day. I'm wondering if I should take calcium supplements, but I'm worried ...
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 ...