Science-backed · Bias-checked · Always current

You shouldn't need a PhD to get nutrition answers you trust.

We read the research and vet every source, then turn it into clear, actionable answers — on longevity, everyday risks, what's actually worth eating, and what to avoid.

Tens of thousands of curated studies, with new research added every week — the same question earns a fuller answer over time. Free, forever.

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For individuals & families
How it works

Everything exhausting about nutrition research — we handle it.

01

We curate and vet the evidence

so you don't have to

Tens of thousands of peer-reviewed studies, plus the most reputable clinical guidelines from bodies like the AAP, WHO, and CDC — each scored for authority, funding independence, and bias before it reaches you. Not blogs, not influencers.

02

We keep up with the latest research

so your answers never go stale

New curated research lands in the library every week. Ask the same question next month and the answer reflects what the evidence says then — not a decade-old study that's been revised or retracted.

03

We balance the science

so you're not stuck with one source

Consensus aggregated across dozens of independent sources — where experts agree, where they disagree, and what it means for your real-world risk.

04

Test your knowledge

and actually remember what matters

Quizzes built from the same evidence, so what you've learned actually sticks.

See it in action

Every answer shows its work.

allnutrition.info
How much vitamin D does a breastfed newborn need?
Evidence-based answer

Breastfed newborns need 400 IU (10 mcg) of vitamin D daily, starting within the first few days of life. Continue until they're getting at least 1 liter of vitamin D-fortified formula or milk daily.

Strong evidence
High consensus
Sources used (2)
AAPClinical Guideline

"The American Academy of Pediatrics recommends 400 IU of vitamin D supplementation beginning in the first few days of life for all breastfed infants."

94trust
CDCPublic Health Guidance

"Breast milk alone does not provide infants with an adequate amount of vitamin D… Most breastfed infants will need an additional source of vitamin D."

91trust

Where the evidence comes from

Names you'd recognize
from a doctor's office.

Peer-reviewed journals

The Lancet
BMJ
The American Journal of Clinical Nutrition
JAMA Pediatrics
Pediatrics
Nutrients

The most reputable guidelines

World Health Organization
CDC
American Academy of Pediatrics
USDA Dietary Guidelines
National Institutes of Health
Academy of Nutrition & Dietetics

…and dozens more — every source conflict-of-interest checked, trust-scored, and the library refreshed weekly as new research is published.

Research Digest

What the latest
research says.

Fresh digests of newly curated research — from the same growing library that answers your questions.

All digests
June 11, 2026

How Targeted Nutrition Drives Health and Longevity

In this digest, we explore how targeted nutritional choices—from adopting plant-based diets to optimizing the food matrix for your gut microbiome—can dramatically reduce the risk of chronic diseases like cancer, diabetes, and dementia. You will discover surprising insights into how everyday habits, such as increasing fiber intake or avoiding ultra-processed foods, profoundly impact everything from pediatric development to metabolic health. Ultimately, this latest research highlights that preserving our longevity and vitality is deeply connected to the quality and structure of the foods we consume.

Common questions

Answers about the answers.

Where do AllNutrition's answers come from?

Every answer is built from a curated library of tens of thousands of peer-reviewed studies, plus the most reputable clinical guidelines from organizations like the WHO, CDC, and American Academy of Pediatrics. Each source is checked for conflicts of interest and given a trust score, and every answer cites the exact sources it used.

How up to date is the research?

Newly published research is curated into the library every week. That means answers improve over time — ask the same question a month from now and it reflects the newest evidence, not a stale snapshot.

What is an evidence panorama?

A panorama is a big-picture report that reads every relevant paper in the library on your question, weighs each by trust, and shows where the evidence points — from longevity habits to everyday risks — with every claim traceable to its sources. Because the library keeps growing, re-running a panorama later shows how the picture evolves.

Is AllNutrition free?

Yes. Asking questions, exploring the evidence behind every answer, and the research digest are all free.

Is this medical advice?

No. AllNutrition summarizes what published research and clinical guidelines say, with citations so you can verify everything yourself. For decisions about your health, talk with your clinician — and bring the sources with you.

Nutrition research, delivered.

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