Questions tagged [nutrition]

For questions about nutrition as it relates to veg*nism, such as how to get a specific nutrient in a vegan way.

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14
votes
3answers
538 views

What are the best sources of vitamin B12 for vegetarians?

What are the best sources of vitamin B12 for vegetarians? Can milk and yogurt make up an adequate daily intake?
14
votes
7answers
428 views

Is there a good rule of thumb for eating correctly?

I've been vegan/vegetarian for about 4 years now and my way of making sure I'd eat enough of everything is to mix as much as possible vegetables, fruits, grains... There's a French recommendation to ...
14
votes
4answers
213 views

Portable/compact endurance food?

I sometimes do bicycle tours where I travel on the order of 12h a day for several days. That is, I need lots of energy a day, and I need to keep this up, so I really shouldn't have an energy deficit. ...
14
votes
3answers
379 views

How to be healthy during a vegan pregnancy?

What health recommendations for during pregnancy can be made to vegans? Many doctors recommend eating fish and/or meat. How could a pregnant person get the necessary nutrients on a vegan diet?
14
votes
1answer
482 views

What are the nutritional properties of soy “whey”?

Prompted by this question I would like to know what the nutritional properties of soy whey are. By soy whey I mean the nearly clear liquid left behind after soya milk has been coagulated to make tofu....
13
votes
2answers
165 views

Can you achieve sufficient daily complete proteins as a vegan if you only eat grains, fruits, vegetables and other whole foods?

I.e. if you eat enough grains, pulses, fruits and vegetables, but not processed foods like tofu, seitan, mock meats, etc.
12
votes
2answers
270 views

After how long will one see symptoms of lack of B12?

Suppose a person goes vegan and neither eats food items with B12 nor supplements, i.e., doesn't take vitamin B12 at all. After how much time will the symptoms be visible and after how much time will ...
12
votes
2answers
816 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 ...
12
votes
2answers
324 views

How can I determine how much protein I need in a vegan diet?

As I'm going vegan, I need to replace protein from meat with plant proteins. When I was eating meat, I didn't pay any attention to how much protein I ate. But in a vegan diet, I feel that I would have ...
11
votes
1answer
149 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 ...
11
votes
1answer
156 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,...
10
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3answers
360 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 ...
10
votes
1answer
145 views

Are there any specifics related to veganism and working out?

I used to workout quite a lot when I was omnivore and vegetarian but have not visited the gym for some time because of a back injury. When transitioning from omnivore to vegetarian, I did not do any ...
10
votes
1answer
810 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 ...
9
votes
1answer
83 views

Can vegan diets have a positive effect on people with diabetes?

I'm wondering whether a diet rich in plant foods, such as a vegan diet, can have a positive impact on people with diabetes and/or people with pre-diabetes, the condition in which blood glucose levels ...
9
votes
2answers
830 views

How often should a vegan have a blood test?

I read (e.g. in this vitamin B12 question) that it is important for a vegan to monitor some nutrient levels by taking blood tests periodically. Excluding exceptional situations, how often a vegan ...
9
votes
2answers
155 views

Are vegetarian and vegan macronutrient needs the same as in traditional diets?

Are the recommended macronutrient ratios the same for vegetarians, vegans, and people eating meat? Does the fiber content or the nutrient density of plant foods change the recommended calorie intake ...
9
votes
1answer
947 views

How does cooking affect Omega 3 oils in flax, chia and other seeds?

I often use chia and flax seeds in my baking, mainly to help bind the mixture (sometimes to replace egg). I know they're a great source of Omega 3 (potentially scarce in veg*n diets) when raw, but I ...
9
votes
1answer
122 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 ...
9
votes
1answer
130 views

Which essential amino acids are the most likely to be deficient in a vegan diet?

Beside total proteins and the need for protein combining (see this question), here I ask a more specific question regarding single amino-acids: what are the most likely essential amino acids to be ...
9
votes
2answers
79 views

How do the health effects of butter and margarine compare?

I am slowly transitioning to a healthier diet and I am in a quandary about the health effects of butter and margarine. I went to buy a butter replacement and chose an olive spread. I'm in the uk. My ...
8
votes
1answer
105 views

Alternative vegan sources of Omega 3

What are vegan sources of Omega 3 that are not algae, seeds, or nuts?
8
votes
1answer
118 views

How should one adapt a vegetarian diet after breaking a bone?

I was wondering how one should adapt one's diet to optimize bone reconstruction efficiency. Popular knowledge tends to highlight the need for calcium, but I'd like to know if there are any scientific ...
8
votes
1answer
15k 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 ...
8
votes
2answers
238 views

Can vegans get sufficient iodine from plants and iodized salt?

The trace element iodine is an essential nutrient for humans. According to some nutrition professionals, good sources of iodine are iodized salt, seafood and dairy products, while plants might be a ...
8
votes
2answers
84 views

Is boiling oil seeds and oleaginous fruit as effective as soaking them overnight in cold water?

Those seeds are the base for vegan cheese preparation. In the process of experimenting with making my own vegan cheese, I am wondering whether soaking is equivalent to boiling in this context, since ...
8
votes
1answer
90 views

Which “fake meats” are most nutritionally similar to meat of animal origin?

When modifying a diet to replace meat of animal origin with more plant-based foods, it's common for people to start out with meat substitutes like tofu, seitan, tempeh, and various other processed/...
8
votes
1answer
117 views

What combination of vegan foods more or less exactly mirrors the nutritional value of an egg?

I'm wondering if anyone has a list of foods, and the quantity of those foods required with their corresponding nutritional contribution to the egg substitute listed. The calorie content of such a list ...
8
votes
1answer
145 views

How much coffee/tea can cause you to absorb less plant-based iron?

I recently discovered that iron we get from plants is not absorbed the same way as from meat, it is actually not the exact same iron: nonheme iron (plants) and heme iron (animals). Things can enhance ...
8
votes
2answers
354 views

What vegan food should I feed to a baby?

What foods should I feed a baby when we starting out on a vegan lifestyle? We are going through a phase where we are changing from meat to vegetarian/vegan. I've seen many babies that don't eat ...
7
votes
4answers
242 views

Is there a single vegan recipe that can be nutritionally sufficient for a long period of time?

I have gone on a diet where I only ate white grapes for 2 weeks. It was an interesting experience. In the first 2-3 days I was feeling low energy and afterwards I started to feel better and very good ...
7
votes
4answers
261 views

Where do vegans get their Omega-3's? [not ALA]

I'm talking specifically EPA and DHA, neither of which are found in any food source except marine biota. Microalgae is the only vegan source I know of but it's almost nonexistent in most vegan ...
7
votes
3answers
314 views

What amount of vitamin B12 is required per day?

I read some questions in this site regarding B12. Some said 50 mcg was required per day, while some said 1000 mcg. While Vegan Society says 3 mcg per day atleast. What is the amount of B12 required ...
7
votes
3answers
93 views

Any website to search for foods high in a particular nutrient?

USDA.gov has removed their Food Composition Database through which you were able to search for list of foods high in particular nutrient, such as potassium, vitamin C, etc., and their new Food Data ...
7
votes
2answers
302 views

Is it healthy for vegetarians to follow a ketogenic diet?

Since a vegetarian ketogenic diet is limited to dairy, eggs, nuts, seeds, vegetables, some low carb fruits, and nutrition supplements, it is quite difficult to follow. Has anyone survived a vegetarian ...
7
votes
1answer
78 views

Due to potential for rancidity, are oil supplements better than nuts and seeds when one eats the latter only rarely?

I don't supplement with omega-3 and omega-6 fatty acids, getting them from nuts and seeds instead. But recently I've read that polyunsaturated fatty acids become rancid soon, especially comparing to ...
7
votes
0answers
79 views

Are there any studies of methylation status in case of proper B12 complementation in vegans/vegetarians?

I'm trying to look for scientific studies that study the impact of careful vegetarianism/veganism on DNA methylation at the locus level (meQTL study). The closest I could find was this one, that ...
6
votes
2answers
665 views

Which foods benefit from soaking before cooking?

I’ve heard that it’s important for health to soak beans when cooking them from dry. Some people also soak rice or chickpeas. I don’t think I’ve ever heard of somebody soaking lentils. Why do we soak ...
6
votes
2answers
91 views

Is meat to blame for many lifestyle diseases?

I have been reading "how not to die" by gene stone and Michael Gregor. During the book, people were classified as either meat eaters (eat meat more than 4 times a week), or plant based eaters. meat ...
6
votes
1answer
151 views

Alternative meat imitation protein options that are GF and soy-free

Are there any affordable alternative meat imitation protein products that are both gluten-free and soy-free in the United States?
6
votes
4answers
738 views

Could a vegetarian diet indirectly cause vitamin C deficiency?

Obvious answer is no but... I quickly see a difference when I don't get much fruit (or fruit-juice) for a few weeks, my gums start bleeding more easily and get a bit painful - known consequences of a ...
6
votes
1answer
41 views

Is there a way of telling if foods are vegan by a single nutrient or a certain combination of nutrients?

The USDA define 235 kinds of nutrients in their database. Is there a nutrient found in all animal products and no plant foods? I read that some foods with zero cholesterol aren't always vegan. But, ...
6
votes
2answers
268 views

Is fat necessary?

From searching around the only types of fat I found to be needed for good health are omega 3 and 6 and everyone suggests limiting omega 6 intake as much as possible because it reduces omega 3. Does ...
6
votes
1answer
78 views

Does nutritional yeast count as a food or supplement?

The RDA of B12 is 2.4 mcg in food. For supplements, which are not as well absorbed, the recommended dose is 5-10 mcg (and sometimes higher). So does nooch count as a supplement or food? (Please cite a ...
5
votes
2answers
130 views

How to counter the theory that you need to eat a bit of everything to have a balanced life?

I have been vegetarian for several years and now I rarely eat meat (never red meat). I have often heard people (including medical doctors) that in order to have a healthy life you should eat a bit of ...
5
votes
4answers
210 views

Body got skinny and gaunt; caused by not eating meat any more?

Last year I stopped eating meat (for environmental reasons): went from meat every day to one meat meal every one or two weeks (basically only when going out). And since Coronavirus started, this has ...
5
votes
1answer
52 views

How long does it take for cholesterol to lower down after switching to veganism?

Once a person switches to veganism, how fast do the cholesterol levels lower?
5
votes
1answer
139 views

How can vegans obtain sufficient zinc from whole foods?

Zinc is a mineral that we need in small amount every day for good health. Although zinc is found in many plant foods, it is less concentrated than in many animal-based foods. Males are known to have a ...
5
votes
1answer
722 views

What are advantages and disadvantages of consuming Multigrain food items?

Grains have been a part of vegetarian diet for a long time. Huge populations around the world consume grains (most commonly wheat and corn). Most health experts agree that grains should be a part of ...
5
votes
1answer
39 views

Inflammatory and anti-inflammatory food table request

Is there a book, ebook or internet resource with a nutritional table (drawn from recent scientific studies) showing or describing inflammatory and anti-inflammatory characteristics of vegan and ...