Search this citation-heavy database of nutrition and supplement research

See this searchable resource about herbal therapies, including evidence and drug interactions

Memorial Sloan Kettering Cancer Center has created this searchable resource of herbal supplements to inform the public about the purported uses of herbal therapies, the existing evidence about them, their mechanism of action, and any concerns about potential herbal supplement and drug interactions.

ConsumerLab is a watchdog site reviewing supplements for quality and recalls

The group purchases supplements and tests them for accuracy. When it tested 26 popular B vitamin supplements, it found five failed their tests because they provide either significantly less or much more of the ingredients than listed. This type of product-label mismatch can occur because the FDA does not regulate these products as it would a drug.

Investigation finds 'influencer' dietitians paid to promote sugar, supplements on social media

A joint investigation by The Examiner and The Washington Post found that food, beverage, and supplement corporations and groups have paid registered dietitians on social media to promote content that goes against decades of scientific evidence on...

Dietary supplements are regulated like foods

This hour-long 2016 documentary from Frontline, the Canadian Broadcasting Corporation, and The New York Times examined the safety of dietary supplements. It noted that this then-$30B industry (it's at least doubled since then) suffers from irregularities and impurities. It warned that many Americans are unaware of the lack of regulatory oversight over these products.

Supplement sales soared during the pandemic, alongside growing distrust of the health establishment, amplifying a trend that endures—even when some of the products don't even work.

Explore a database of generic drugs to trace their origins and identify any safety concerns.

An encyclopedia of anthropology

This online database offers articles and additional resources for all things anthropology. This free resource is filled with peer-reviewed entries that cover topics ranging from addiction to writing, and offers anthropological insight into more...

See preferred supplements across different countries in 2025, by generation

Millennials and Gen Z typically took more supplements than other age groups across vitamins, proteins, minerals, and herbal supplements, according to 2025 data from a Global Consumer Insights Survey conducted in 55 countries. Roughly two-thirds of Gen Z respondents stated they'd taken vitamins in the past 12 months. (Some users may experience a paywall.)

The term 'superfood' is a marketing construct with no scientific or medical definition

Encompassing at least 136 plants and animals, the concept has been criticized by nutritionists for its scientific value, which has been exploited by the wellness industry for profit. Although the label has encouraged the consumption of fruits and vegetables, food variety and minimal processing remain key to a healthy diet.

Supplements often have issues with impurities, toxins, and inaccurate labels

Consumer Reports' tests of more than 20 supplement powders and shakes in 2025 found that more than two-thirds of them contain unsafe levels of lead. Some contained 10 times the amount of lead that's considered acceptable to ingest in a day. The levels they found, in some cases, were even higher than when they tested the products 15 years earlier.

Research suggests articles on Wikipedia are about as reliable as 'accurate' sources

Studies from Nature, The Guardian, the Journal of Clinical Oncology, and the Canadian Library Association, among others, did not identify significant errors, particularly in articles related to academic topics. The site is still considered an exploratory, tertiary source subject to systemic biases from its human editors, especially within controversial topics.

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

Reporting if supplements make you ill helps FDA know what products to investigate

The US Food and Drug Administration regulates supplements like foods and can only take action about a supplement if they learn that there are problems with it after it's on the market. This website allows consumers, industry, and others to file a complaint about a product that made them ill or raised other concerns.

The dietary market is worth more than $60B

Listen to this question and answer session with the US Food and Drug Administration about dietary supplements—vitamins, minerals, probiotics and similar products people may buy in liquid, pill, or powder form. They are categorized legally as a category of food and can be legally brought to market without the FDA even knowing about it, though consumers can tell FDA about issues with the products and FDA can take action to remove dangerous or unlawful items after they're available.

Do you need a multivitamin?

In 2013, several researchers declared multivitamins dead, stating that so-called supplements had no clear benefits and might be harmful. But the science isn't so clear-cut. This article explores the question of who would benefit from...

Collagen supplements have become a multibillion-dollar industry

Beginning in our 20s, the amount of this protein in our skin, muscles, and connective tissue declines. But independent, high-quality studies—like those that are double-blind—have not yet shown a significant association between their use and evidence of it improving skin elasticity, reducing wrinkles, or combating hair loss. Some collagen supplements do seem to help with joint pain and knee function, but NPR cautions that studies on that purpose are industry-funded.

At-home genetic testing results commonly led users to healthier lifestyles

Italian research that aimed to investigate what people do longer-term after receiving direct-to-consumer genetic test results indicated that whether the results were positive or negative, people tended to adopt a healthier diet after receiving the results, and they'd still maintained it a year after receiving their results. Some users also reported an overall reduction in stress over their health concerns. (Some users may encounter a paywall.)

Explore an interactive database of critical minerals and their uses

Columbia University's Critical Materials Monitor identifies 56 elements required for the clean energy transition. The tool provides details on the reserves, production, and trade of each element, alongside what materials are needed for each technology (desktop only).

Supplements are only typically recommended for those with a proven deficiency

Blood tests and other dietary screening tools by clinicians and nutritionists can indicate whether someone is deficient in needed vitamins or minerals, and those results can then lead to a personalized care plan that may include supplements. Supplements can negatively interact with certain medications, so it's important to speak with your doctor about supplements before taking them.

The Whole Earth Catalog offered readers tools for healthy eating

The publication promised hippies "access to tools"—listings for "high quality or low cost" books, devices, and instructions for alternative living, including cultivating natural and organic foods. This archive comprises high-definition scans of nearly all materials published between 1968 and 2002.

Read this analysis indicating which traditional stevia medical uses have scientific evidence

This research paper investigates the various uses of Stevia rebaudiana leaves and their extracts and concludes that the substances do hold significant potential for improving cardiovascular health and inflammatory disorders in adults, among several other potential applications. Its authors suggest that further research should examine safe dosage questions and chronic disease management approaches.

Search this database of fashion and beauty brands to see how sustainable their business practices are.

Kava, kratom, St. John's Wort, and green tea extract present health concerns

Consumer Reports, which tests supplements for safety, urges consumers to avoid these four supplements due to safety warnings from researchers and public health authorities.

Find dozens of allergen-free recipes

This collection of allergen-free meal and snack recipes, designed by celebrity chefs and others, was curated by the nonprofit Food and Allergy Research & Education group. It includes items like taquitos, pizza, chickpea burgers, various desserts, and more.

Humans need vitamins, but research is mixed on taking supplements

When an organism needs an organic molecule to survive, but cannot synthesize enough of it itself, that molecule is called a vitamin. Typically, we consume vitamins through food, but many resort to supplements—a common and mostly unregulated practice.

A technical review of what researchers know about the gut microbiome

This overview from the National Institutes of Health provides a deeper (but still accessible) look at the different bacteria in the gut, how the microbiome develops through life, its purpose, and more.

Use this college navigator tool to make informed decisions about college options

Balancing the benefits and costs of higher education on a school-by-school basis can be overwhelming. This database from the National Center for Education Statistics provides an easily searchable database with comprehensive information on costs, student aid, outcomes for alumni, retention rates, and much more.

Health and population surveys from 90 countries

The Demographic and Health Surveys (DHS) Program collects, analyzes, and disseminates data on population, health, HIV, and nutrition. The site compiles data through more than 400 surveys in over 90 countries around the world. Explore demographic...

Meet six commercially available synbio products

An article exploring the science behind synbio products currently on the market, and projecting the products that can be expected over the next 10 years.

Health food broke into the mainstream by the 1980s

A 1984 New York Times story noted that Americans were eating less red meat than a decade prior, and that, in general, the country was “talking, thinking and worrying about what they eat to a degree unique in the nation's history.” The feature then details foods that were then considered bizarre: whole-grain muffins, hummus, and a variety of vegetarian dishes. (Some readers may experience a paywall.)

View a ranking of research institutions, filterable by region, country, research area, or journal group.

Social media can be a valuable public health tool, combating misinformation, advancing health research, boosting social mobilization, and raising awareness of health services and events.

The National Institute on Drug Abuse's resource library

The National Institute on Drug Abuse website is an in-depth and highly prolific resource on addiction science. Explore the vast scope of this website to access comprehensive guides, data visualizations, and educational materials on all facets of addiction and its treatment.

Bad Ancient: a site to fact-check claims about the ancient world

Peruse popular questions about ancient Rome, Egypt, Greece, and more, from whether Greek boxers were ripped or to what extent Alexander the Great conquered the world.

The promises and perils of using at-home genetic tests for your health

A primer on genetic testing, personalized medicine, and the promise of pharmacogenomics–the use of genetics to predict an individual's response to a drug.

USP-verified label on supplements means a nonprofit confirmed what's in the bottle

The black-and-yellow USP-verified program seal on a dietary supplement bottle means that the nonprofit US Pharmacopeia tested a sample of the product and verified that it was made in a facility with good manufacturing practices and that it will dissolve in the body. Their certification also means they tested to confirm that the product contains the ingredients listed on the bottle at the specified levels, and that it doesn't contain harmful levels of certain dangerous contaminants.

View a directory of more than 300 dinosaurs

This resource details each dinosaur's taxonomy, type, diet, and habitat, from Aardonyx to Zuniceratops. More well-researched dinosaurs include information on when they were discovered alongside their size, behaviors, and other noteworthy findings.

Interest in intermittent fasting outpaces the science

The public interest in fasting diets has outpaced the science behind related health claims. This article details how the science of fasting diets is mainly exploratory and focused on longevity and disease prevention. Current findings suggest fasting kick-starts regenerative processes in the body, decreases inflammation, and improves health outcomes overall. However, much of this research focuses on the short-term impact of fasting.

Explore the National Cancer Institute's archive on cancer treatments, including complementary and alternative medicine.

Explore US public health data

This resource tracks key US health metrics, including mortality causes, child survival rates, and life expectancy comparisons, to inform future health improvements, with regularly updated global estimates.

This 'Science Vs' episode checks the taste, health, and environmental claims about organic food against the actual research.

Learn about the more than 100 known autoimmune diseases

Explore this resource with summaries and related resources for the dozens of autoimmune diseases defined in the medical literature. Many of these disease write-ups also have interviews with a patient with the disorder—offering a personal take about challenges, advice, and lifestyle effects.

Food poisoning investigations have led to more than 1 billion pounds of food recalls

PulseNet is the US government’s real-time foodborne illness tracking system for leading causes of food poisoning. There, a network of labs and scientists share DNA sequences for pathogens collected from contaminated food and also from sickened individuals, looking for patterns in the pathogens’ genome sequences that will help them hopefully finger a certain food, warehouse, producer, or restaurant.

As of 2025, extensive research studies do not support fears about seed oils

Across human trials, seed oils have not been shown to increase rates of disease or inflammation, with a study of over 800 Swedish men finding that higher seed oil diets were linked to living longer. Reviews of these trials found better health outcomes when saturated fats were replaced with seed oils.

The FDA does not approve dietary supplements before they go to market

The US Food and Drug Administration does not regulate products including vitamins, probiotics, and herbal mixes as drugs due to the Dietary Supplement Health and Education Act of 1994, which amended the Federal Food, Drug, and Cosmetic Act. Because dietary supplements are regulated as a subcategory of foods, inspectors do not assess whether dietary supplements work as advertised before sale.

Explore 1,800+ exercises with an interactive muscle map that lets you click any muscle to see targeted exercises, including video tutorials and written instructions.

A comprehensive review of BPC-157 studies identified no human safety data

This meta-analysis included available studies on this peptide from 1993-2024, and identified 36 studies. It found 35 preclinical (nonhuman) studies and one retrospective study in humans of musculoskeletal pain following injections of BPC-157 for unspecified chronic knee pain. In that one human study, 7 of 12 patients receiving BPC-157 reported relief after the injections (though many had injuries that often heal on their own over time).

Each scientific study adds incremental knowledge to existing understanding

On its own, no study serves as a source of truth or solves an existing problem indefinitely, though many can be analyzed collectively in a systematic review to build more confidence—the result of more data—in a conclusion. Studies can explore knowledge gaps or test an existing theory, which is always subject to refinement and improvement.

Read the main paper criticizing the concept of blue zones, which argues recordkeeping errors, pension fraud, and natural disasters likely explain the high numbers of purported healthy centenarians in certain locations.

History's weirdest weight loss fads, fact-checked

Nothing catches popular attention more than a claim to have found a quick weight-loss technique. History shows us such claims are often unfounded. Dr. Michael Mosley explores extreme weight-loss tips from history, from tapeworms to vinegar diets.