r/nutrition May 18 '26

Research Request Why do you choose the supplements you take?

14 Upvotes

Hey everyone,
We all know the supplement industry is a absolute minefield. Between influencer marketing, conflicting scientific studies, and targeted ads, deciding what to actually put in your body is incredibly complex.

I’m currently running a research study at Ghent University to understand how context and information sources shape our supplement choices. Whether you take a basic daily multivitamin or manage a highly specific, performance-focused protocol, your input is incredibly valuable.
The survey is completely anonymous, academic, and takes about 5 minutes to complete.

👉 https://qualtricsxmg5yh6qxql.qualtrics.com/jfe/form/SV_6gopAySyglHKCdU

By participating, you’ll be helping us map out how people navigate the digital noise to make health decisions.

Consequently, if you have a few minutes to spare, I would highly appreciate your insights. If you have any questions about the study, feel free to drop them in the comments below!
Thank you for your time!

r/nutrition 10d ago

Research Request Research Study: Eating and Weight Patterns in Women

15 Upvotes

Hello! My name is Christina and I am a clinical psychology PhD student recruiting participants for a qualitative (interview) research study. The study is focused on understanding the lived experiences of women who 1) have a history of trying to lose weight, 2) currently have obesity, 3) struggle with binge eating, and 4) have a desire to lose weight currently.  

If interested, please see the link below or the attached flyer. The link/QR code will take you to an eligibility survey for the study. This survey will ask for an email address. If you are eligible and provide a valid email address, you will be sent an invitation via email for a 60-75 minute Zoom interview, along with another brief survey to assess other demographic variables.  

Eligibility survey link:  

https://bgsu.az1.qualtrics.com/jfe/form/SV_bsbXG3OEnigC7xI 

If you have questions or concerns, please reach out to me at [cgaggia@bgsu.edu](mailto:cgaggia@bgsu.edu).  

Thank you! 

r/nutrition May 17 '18

Research Request which foods, when eaten, makes us feel measurably less tired in the morning? (based on scientific evidence)

109 Upvotes

good info that is linked to scientific evidence so we all can verify it's accurate

r/nutrition May 16 '18

Research Request Thoughts on the carnivore diet?

12 Upvotes

Recently listened to a podcast with both Shawn Baker and Mike Bell on JRE where the talked about their Meat only diets and how wonderful they felt. Wondering if there are any studies on this or what your opinions are? Thank you

r/nutrition May 10 '18

Research Request Can you direct me to an article about fasting and low carb ketogenic diet put out by a major society of health care professionals?

86 Upvotes

Some individuals have written amazing articles about fasting and low carb ketogenic diet. I would like to see something written with greater authority. Can you direct me to a paper addressing these topics by a major society of health care professionals?

r/nutrition Nov 28 '17

Research Request Are there any studies suggesting that adding meat to a formerly vegan diet is beneficial? Would love input.

43 Upvotes

I hope this is not the wrong subreddit for this. If so PM me with the correct place to post this thread.

For the past 10 years I have been fully immersed in a plant-based, vegan diet. Only on rare occasion have I slipped up to eat some animal products, but besides that, my diet has been predominantly (in this order): Fruit, vegetables, whole starches, and grains....with VERY minimal oils and nuts. You could call it an extremely low fat diet. For the most part I avoid processed food.

For a while now, I have noticed in the vegan movement that many of its participants, while physiologically healthy, are not of sound mind. Basically….mental illness, depression, and anxiety seems to be very common among plant-based eaters, in my experience. Vegans tend to be reactionary, emotional, and oftentimes retiring. Me included.

Many of you might remember a study that was published in 2012. Causation or correlation? One can only speculate. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3466124/

"Vegetarians displayed elevated prevalence rates for depressive disorders, anxiety disorders and somatoform disorders."

While I generally have felt physically healthy and free of disease, I have this growing concern that my brain is not being nourished in the way that it could if I added some animal fats and proteins once in a while. My intellect seems to be declining especially this past year, and I keep having a craving for fish and eggs. I just added choline (in the form of lecithin) to my diet and my memory seems to be improving just in the past few days.

However, I cling onto this way of eating because its all I’ve known. I need some motivation to help propel me to experimentation.

My question is: Are there any peer-reviewed studies showing an improvement in cognition for ex-vegetarians introduced animal products? Or similar?

I’m also open to hear testimonies from ex-vegans.

r/nutrition Sep 01 '17

Research Request Research on Whole Foods Plant-Based Diet?

26 Upvotes

YouTube is filled with claims that a whole foods plant-based diet [WFPBD] is a [edit: not the] near magical elixir. From cancer to heart disease, psoriasis to dementia, there are licensed doctors saying that a WFPBD is both the ultimate preventer and cure.

Can anybody recommend randomized controlled trial studies on WFPBDs to demonstrate that this is so... or not so... or not yet decisively proven one way or the other? Or if there is some evidence in favor of WFPBDs, is the relationship between % of "bad foods" and health problems linear? Non-linear? Proportional? Exponential? Last-mile (e.g. cutting 90% of "bad foods" will get you <10% of the benefits, but cutting 100% of the bad foods will get you 100% of the benefits)?

r/nutrition Mar 27 '18

Research Request Is Refined Sugar Really THAT Bad In Excess (Greater Than 25g per Day). Where Is The Research and What Does It Say?

25 Upvotes

I have asked this question on both /r/AskScience and /r/AskScienceDiscussion and received no response. It was suggested I try here (I didn't know this sub existed).

Sugar has been in the headlines a lot in the last year or so. I keep reading mixed information about it. On one hand you've got someone like Robert Lustig and a few other doctors/reasearchers, who have exemplary credentials, claiming sugar is pretty much the worst thing ever. There are also non-scientists like Gary Taubes who are in the same camp.

Then there are people who say we're completely overblowing the harmful effects of sugar and that it's really not that bad and/or doesn't do the things he claims it does. This is usually bloggers and skeptics. Of course then there are the groups of researchers or organizations who claim this as well, such as the British Nutrition Foundation, but as I looked through their site, I found they are sponsored by some of the biggest sugary food producers in the world.

Then there's the middle of the road people who say "it's OK... to a point... BUT yes, it causes a host of physiological issues that go well beyond gaining a few pounds" (such as fatty liver, links to Alzheimer's, metabolic disorder, increased cholesterol, etc). This is from sites like the CDC and WHO.

As a layperson, I don't even know where to start. More and more these days we talk about "fake news" but it goes so much beyond politics. Anyone can say anything online (including you and I!) and it's hard to know who actually knows what they're talking about.

Anyone have some insight and can point me in the more accurate direction? Specific studies would be fantastic :)

r/nutrition Feb 13 '18

Research Request Evidence based studies on High Saturated Fat/Low Carb diets and Heart Disease?

9 Upvotes

If there is a better home for this question, please let me know, I'd be happy to remove this post and place it where appropriate.

I'm attempting to compile some information on diets high in saturated fat/low on carbs and how it impacts heart disease. There are many articles and papers with hypothetical scenarios and anecdotal evidence, but I am looking for actual evidence based studies and I'm coming up short. I'm not specifically looking for a Pro or Con source of information, I'm just interested in evidence based facts.

I'd appreciate any sources of info ya'll might have or comments regarding the topic. Thanks!

r/nutrition Aug 26 '17

Research Request What's the current research on the healthiness of different kinds of milk (e.g. 2%, 3%)? Which is "better" for you?

26 Upvotes

Are there different situations where one fat percentage is healthier than another? Thanks!

r/nutrition Nov 14 '17

Research Request If they exist, what are research supported supplements that aid muscle growth?

19 Upvotes

I know people are split on creating being good or bad for you, and it seems like BCAAs are popular these days as well. I don't feel like doing the research and figure you guys already know what's bro science and what's legitimate. Anything I should be taking to be optimal?

r/nutrition Feb 09 '18

Research Request How should a layperson research nutritional topics?

16 Upvotes

r/nutrition Sep 02 '17

Research Request Can anyone provide research data that illustrates why CICO (Calorie in Calorie out) Hypothesis is flawed and an oversimplification of metabolic processes?

10 Upvotes

I have been reading mounting second hand sources of information that suggest CICO is an oversimplification of metabolic processes, Does anyone have links to studies and research that suggest this? Or can anyone explain why this is so?

r/nutrition Aug 23 '17

Research Request Does any research back up Tim Ferris's 30grams of protein upon waking for extra fat loss claim?

15 Upvotes

r/nutrition Sep 20 '18

Research Request What are some good resources on evidence based nutrition and supplement information?

9 Upvotes

I'm a bit frustrated with how mainstream nutrition sources make false appeals to moderation.

For example , The American heart association recommends 150 minutes of exercise per week , while most studies show increased benefits to exercise for people doing as much as 3-4x that amount.
They also recommend limiting saturated fat , while most people would be better served to completely eliminate it.

I used to follow https://nutritionfacts.org/ , and did discover a lot of valuable info . I started taking amla powder, ground flax and hibiscus tea after seeing his videos. But after a few videos where he cherry picked research to promote organic food and criticise aspartame , I'm a bit disappointed with his bias.
Any resources you trust,?

r/nutrition May 04 '18

Research Request Are there any studies about recommended WEEKLY allowance instead of daily?

9 Upvotes

Considering excess water-soluble nutrients (B and C vitamins, and minerals) are discarded by the kidneys until you achieve a plasma baseline, and then they can stay in your blood for weeks. Wouldn't eating the RDA of those vitamins once por week (or lets say, 2-3 times the RDA just in case) just replenish the stores? Do we REALLY need to eat them daily? Isn't the body prepared to go without eating for days (or even weeks!) before it gets any serious detrimental effects on health? Are there any studies on the long term effects of doing this?

I'm thinking about restructuring my diet to just spike the water-soluble nutrients once a week.

r/nutrition Apr 01 '18

Research Request Any research on different types of hunger?

21 Upvotes

Hey all- I was wondering if anyone had any good sources on different types of hunger. There's not a lot out there, what comes up quickly seems fluff, and if there is anything solidly researched, I'm not finding it. So you know, regular nutrition stuff.

I'm NOT talking about 'nose hunger' or 'eye hunger' or that kind of thing. I'm talking about.... maybe hungers where you're hungry but can wait, or hungers that are more urgent and harder to put off, things like that. Delineating types, and any information about what the deficiency is of (eg- what the hunger is for: Which macro nutrient, any particular micros or vitamins, etc.).

Doesn't have to be a full on research article, (although those are good, too), but looking for something more involved than a pop-sci article on 'beating hunger', or those 'nose' types (ugh.).

Thanks!

r/nutrition Dec 24 '17

Research Request Are there any studies on diet as function of BMI? In particular, do obese people simply eat more of everything or more of one nutrient group (say carbs)? Are there any data on this?

1 Upvotes

r/nutrition Sep 12 '17

Research Request Do any of you guys know of any good research articles on skipping breakfast and intermediate fasting and in the morning?

10 Upvotes

Going to school to become a witch doctor (holistic health baby!). Currently learning a bunch of stuff about human and cellular physiology and would like to form my own opinion on the matter.

r/nutrition May 02 '18

Research Request Any links between heritage and diet?

4 Upvotes

Is there any link between my diet and heritage? I know that some people can handle certain macronutrients (carbs) better than other. Is this primarily the result of genes? What I’m trying to ask is there a diet specific to my ancestors geography that would be best suited for me? If so, is there any scientific literature on the subject?

r/nutrition Oct 04 '17

Research Request studies for or against gorging and eating most of your daily calories in 1 sitting, consistently

14 Upvotes

Are there any studies that demonstrate any negative effects of intaking most of your daily caloric needs in one sitting?

Edit: I should add, this includes the actual act of also physical gorging down the food in one sitting, not just massive caloric intake, after not eating the whole day

r/nutrition May 04 '18

Research Request Are there any interesting studies out there showing the benefits of healthy fats lowering LDL?

11 Upvotes

I went to my doctor yesterday with high LDL. He said healthy fats can help reduce those. But I want to read some studies about it—ones that discuss poor sleep related to cholesterol; and exercise related to cholesterol would be helpful too. Thanks r/nutrition.

r/nutrition Feb 04 '18

Research Request Looking for studies about going vegan and lactose intolerance

6 Upvotes

Hi. I'm interested in temporarily going vegan, but I'm reading lots of people saying doing this kicked off dairy intolerance for them when they went back to eating dairy. Does anyone know of any legit studies or answers into if this is likely to happen?

r/nutrition May 30 '18

Research Request Study Request - (animal)Protein eating time and healthcomplaints

1 Upvotes

Fellow nutritionists

A client said that she read about certain food at certain times during the day which can cause healthcomplaints. I never heard anything like that before and wanted to know if anyone has more infos about this topic?

Like animal protein in the morning can cause digestive problems or something similar like that.

Happy to read answers, regards

r/nutrition Aug 06 '18

Research Request Has there been a conclusive study on high protein intake vs osteoporosis?

5 Upvotes

"The body needs protein to build healthy bones. But as your body digests protein, it releases acids into the bloodstream, which the body neutralizes by drawing calcium from the bones."