American Society for Nutrition
nutrition.org
The professional society for nutrition scientists. Publishes leading peer-reviewed journals and translates current research for practitioners and the public.
Nutrition: The Best Websites
Nutrition is one of the worst corners of the internet for misinformation. These are the sites we trust: government databases, university science and credentialed dietitians, not influencers selling supplements.
How We Picked These Nutrition Sites
Every site listed here meets three tests: the advice is written or reviewed by qualified professionals, the site's business model does not depend on selling you supplements or a fad diet, and the information is kept current with actual research. That filter removes most of what ranks in a typical search for "best diet websites."
Cronometer
cronometer.com
The most detailed free food tracker: logs 80+ micronutrients against a verified database. The tracker of choice for data-minded users who want more than calorie counts.
EatRight (Academy of Nutrition and Dietetics)
eatright.org
Consumer nutrition articles written by registered dietitians, plus a directory for finding a credentialed RDN near you when you need personalized advice.
Harvard Nutrition Source
nutritionsource.hsph.harvard.edu
Harvard T.H. Chan School of Public Health's plain-English review of diets and foods against the actual evidence. Home of the Healthy Eating Plate, the research-driven answer to the food pyramid.
MyPlate
myplate.gov
The USDA's plain-language replacement for the food pyramid, with meal planning tools and a food group quiz.
NIH Office of Dietary Supplements
ods.od.nih.gov
Before buying any supplement, read its NIH fact sheet here. Each sheet summarizes what the evidence actually shows, in both consumer and health-professional versions.
Nutrition.gov
nutrition.gov
The USDA's consumer nutrition portal: federal dietary guidance, life-stage advice and FoodData Central, a searchable database of hundreds of thousands of foods. Authoritative and ad-free.
Open Food Facts
world.openfoodfacts.org
A free, crowd-sourced database of millions of food products worldwide: ingredients, additives and nutrition scores. Wikipedia for what you eat.
WebMD Diet & Weight Management
webmd.com/diet
WebMD's diet and weight-management hub: physician-reviewed articles, healthy eating guides and weight-loss tools from the web's largest health publisher.
Which Nutrition Site Should You Use?
For the basics, ad-free: Nutrition.gov
Run by the USDA, Nutrition.gov links straight to federal dietary guidance, life-stage advice and FoodData Central, a searchable database of hundreds of thousands of foods. No ads, no products, no agenda.
For plain-English food science: Harvard's Nutrition Source
The Harvard T.H. Chan School of Public Health publishes The Nutrition Source, which reviews diets and individual foods against the evidence. Its Healthy Eating Plate is a more research-driven alternative to the classic food pyramid.
For finding a professional: EatRight.org
The Academy of Nutrition and Dietetics runs EatRight.org, with consumer articles by registered dietitians and a directory for finding an RDN near you, which matters if you need personalized medical nutrition advice.
For supplements: the NIH Office of Dietary Supplements
Before you buy any supplement, read its NIH fact sheet at ods.od.nih.gov. Each one summarizes what the evidence actually shows, in both consumer and health-professional versions.
For tracking what you eat: Cronometer or MyFitnessPal
Cronometer tracks 80+ micronutrients against a verified food database and has a generous free tier, which is why data-minded users prefer it. MyFitnessPal has the bigger community and food catalog, though its barcode scanner now requires the paid tier.
A Word of Caution
Be skeptical of any nutrition site that diagnoses you in a quiz, blames one ingredient for everything, or sells the cure it recommends. When in doubt, check the claim against the NIH or Harvard pages above, and talk to your doctor or a registered dietitian before major dietary changes.
Nutrition: Frequently Asked Questions
What is the most reliable website for nutrition information?
For neutral, evidence-based information, the strongest sources are government and university sites: Nutrition.gov and FoodData Central (USDA), MedlinePlus, the NIH Office of Dietary Supplements for supplements, and Harvard's Nutrition Source for plain-English reviews of diets and foods.
What is the best free diet-tracking website?
Cronometer offers the most detailed free tracking, covering more than 80 nutrients against a verified database. MyFitnessPal's free tier remains popular for its huge food catalog and community, though some features have moved behind its subscription.
Are diet websites trustworthy?
Many are not. Look for content written or reviewed by registered dietitians (RD/RDN) or physicians, clear citation of research, and a business model that does not depend on selling supplements or a branded diet plan.
How listings work: Win What Where is committed to finding and listing only the best websites.
Every listing is reviewed by a person. We do not accept paid submissions.