Use this tag when you are asking for scientific studies as sources for answers to your question. All answers to these questions *must* have scientific studies as sources. If you are asking about experiments done on animals (an ethical issue for veg*ns), please use the tag [animal-experimentation].
Questions tagged [scientific-studies]
21 questions
22
votes
7 answers
Does a vegan diet actually cause weight loss?
I've heard many places (just google the title of this question) that a vegan diet causes weight loss, usually in the context of trying to lose weight.
Does a healthy vegan diet actually cause weight loss? i.e. getting all the nutrients I need,…

Riker
- 2,350
- 1
- 16
- 42
14
votes
1 answer
What are the personality traits of those most and least likely to go vegetarian?
It seems that only some types of people would be willing to make the decision to go vegetarian. Have there been personality studies of people who are most and least likely to go vegetarian, and how are they different from the general population? …

La-comadreja
- 679
- 4
- 9
11
votes
2 answers
How would a widespread plant-based diet influence the maximum sustainable human population on earth?
A meta-analysis of studies on the maximum sustainable human population on earth found the median estimate to be 7.7 billion people1. Earth's current human population is about 7.5 billion and is forecasted to exceed 7.7 billion in 20202. Population…

nloewen
- 2,793
- 1
- 8
- 37
10
votes
2 answers
Are there studies that have determined the main reasons people stop being vegetarian?
I read a study that approximately 10% of people have been vegetarian, and only 2% are at any given time. It seems that vegetarianism has a low retention rate.
Are there studies that try to determine the main factors that make people drop…

La-comadreja
- 679
- 4
- 9
8
votes
1 answer
Is there information about pets that vegans choose?
Is there reliable research indicating what if any types of companion animals (pets), vegans or vegetarians choose?
The three most popular companion animals are dogs, cats and rabbits (depending on who you ask, related sister site question), with…

James Jenkins
- 883
- 5
- 16
7
votes
4 answers
Are vegan diets associated with more flatulence?
Are diets that restrict or completely avoid animal products associated with a higher volume of flatulence? Here I am asking specifically about gas that is mostly produced in the colon and expelled in a healthy manner, which is different from…

Nic
- 6,536
- 1
- 21
- 60
7
votes
2 answers
Are vegan children weaker than average?
Have there been any studies or surveys which study association between strength, endurance, or other physical fitness measures in relation to vegan or vegetarian diets?
I've heard that drinking cow's milk makes children grow taller and children who…

Nic
- 6,536
- 1
- 21
- 60
7
votes
0 answers
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 proves that there is no massive demethylation in…

Edelk
- 413
- 2
- 9
6
votes
2 answers
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 eaters had a much higher risk of obtaining diseases…

hayne newell
- 61
- 2
6
votes
1 answer
How important is it to watch vitamin K2 levels?
I've read an article arguing about the importance of vitamin K2 for correct calcium management in the body.
There is danger of having low vitamin K2 in a vegan diet.
How important is it to watch levels of this vitamin and is it recommended for…

Tin Man
- 161
- 2
5
votes
3 answers
Are vegans less susceptible to infectious diseases?
After reading the recent article
Butler, Michael J., and Ruth M. Barrientos. “The Impact of Nutrition on COVID-19 Susceptibility and Long-Term Consequences.” Brain, Behavior, and Immunity 87 (July 2020): 53–54.,
which suggests that the Western…

Geremia
- 503
- 2
- 13
5
votes
2 answers
How much Potassium K from fennel is lost by juicing?
If I eat 100 grams of raw fennel (Foeniculum vulgare) I eat also mg 414 potassium, K (according to ndb.nal.usda.gov, USA National Nutrient Database ).
But if I make a juice of 100 grams of raw fennel using cold pressing or centrifuging, does the…

gr68
- 223
- 1
- 5
5
votes
3 answers
Does eating soy lower testosterone?
Some people claim that consuming soy lowers testosterone in men. This seems to be repeated by a lot of bloggers and YouTubers. Is there any truth to this? Is this supported by human or animal studies?

Nic
- 6,536
- 1
- 21
- 60
5
votes
1 answer
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 our everyday diet. It is said that whole grains…

Nog Shine
- 927
- 8
- 23
4
votes
0 answers
How much myrosinase do mustard sprouts contain?
It is known that ground mustard seeds contain active myrosinase, but what about soaked or sprouted mustard seeds?

storgt2
- 41
- 1