Nutrition.
What your cells actually need
Nutrition is not about calories, macros, or diet labels — it is about what happens at the cellular level when food enters your body. Insulin triggers GLUT4 translocation to move glucose into cells. Amino acids activate mTOR for protein synthesis. Fatty acids are incorporated into every cell membrane you build. The quality of your inputs determines the quality of every biological process downstream — mitochondrial energy production, neurotransmitter synthesis, DNA repair, and immune signaling.
What the research actually shows.
Peer-reviewed findings on nutrition — not opinions, not trends.
Your mitochondria produce approximately 65 kg of ATP per day — roughly your own body weight in cellular energy currency. Mitochondrial dysfunction from nutrient deficiencies is now linked to over 200 diseases, from diabetes to neurodegeneration.
Magnesium is a cofactor in over 600 enzymatic reactions, yet an estimated 50% of Americans are deficient. It is required for ATP synthesis, DNA repair, and GABA receptor activation — which is why deficiency manifests as fatigue, anxiety, and muscle cramps simultaneously.
The iron in spinach has a bioavailability of only 1.7% due to oxalates binding the iron, compared to 20-25% from red meat (heme iron). Nutrient content on a label tells you almost nothing about what your body can actually absorb.
Ultra-processed foods now make up 58% of calories consumed in the US. A 2019 NIH crossover trial found that people spontaneously ate 500 more calories per day on ultra-processed vs. whole food diets — even when both were matched for macros, fiber, and palatability.
What 6 peer-reviewed studies show.
A diet rich in fruits, vegetables, soya, and fish may help prevent cancer, while red meat, processed meat, dairy products, and alcohol may increase cancer risk.
Pregnant women require adequate macronutrient and energy intake to maintain maternal health and support fetal growth.
Have a question about nutrition?
Ask our biology AI — answers grounded in peer-reviewed research.
Every article on nutrition is built on systematic reviews, meta-analyses, and RCTs from PubMed. Evidence grade is always disclosed.
Evidence hierarchy →Biology Intelligence retrieves answers from our verified study database. Ask anything about nutrition.
Open Biology Intelligence →Nutrition connects to everything.
One study.
Every week.
A single peer-reviewed study broken down every week — the mechanism, the evidence grade, and what it means for you.
Subscribe freeOr follow @vitaehealthco for daily posts