longevitywatch

Nutrition & prevention

What food, fasting, fibre and supplements really do for healthy aging.

290 answers, from 1,999 studies
Last updated: October 2026
Key questions
Do goji berries help against ageing?
Goji has shown interesting properties in experiments with cells and in animal studies. In people, its effect on ageing has…
Preliminary evidence
Why do Japanese people live so long?
The Japanese dietary pattern, rich in vegetables and fish and low in fat, is clearly associated with a longer and healthier…
Is brown rice healthier than white rice?
Brown rice is more nutritious than white rice and produces a lower blood sugar spike, but only in its ordinary form, not the…
Yes · Moderate evidence
What is the Korean slow-ageing diet and does it work?
A Korean eating pattern built on wholegrains, legumes, vegetables, fruit and fish is linked in several studies to fewer…
Moderate evidence
Does the PhenoAge test measure your biological age with standard blood values?
Standard blood test results can provide an estimate of your biological age through PhenoAge, and that estimate predicts health…
What do psyllium and flaxseed do for your blood sugar?
Taking psyllium before a meal demonstrably lowers the blood sugar peak in people with type 2 diabetes, and with longer use…
Are emulsifiers and sweeteners harmful?
There are serious indications that widely used emulsifiers and artificial sweeteners can disrupt the gut microbiome and may be…
Preliminary evidence
Is intermittent fasting suitable for women over forty?
Intermittent fasting is a viable approach for women over forty, including after menopause, for weight management and improved…
Yes · Moderate evidence
Latest articles
23 Oct
Ribosomes wear out in eggs, shortening female fertility
Why does female fertility decline so much faster than the rest of the body ages?
2 min
22 Oct
Blocking immune cells spares brain tissue in mice with Alzheimer’s
Scientists have found a way to limit brain damage in Alzheimer’s disease without removing the well-known tau protein. In mice,…
1 min
22 Oct
Ten healthy diets all linked to slower biological aging
What if there isn’t one ideal diet, but ten? New research suggests that multiple healthy eating patterns are associated with…
1 min
20 Oct
Protein MTR4 slows cell ageing in blood vessel walls in mice
The lining of blood vessels consists of cells that age particularly fast. When these cells become senescent, they secrete…
1 min
18 Oct
Low-fat vegan diet improves blood sugar in type 2 diabetes
Eat as much as you want, but keep it plant-based and low-fat. For people with type 2 diabetes, this approach produced better…
1 min
17 Oct
Blood proteins at menopause may flag later brain aging
During the menopausal transition, sixteen proteins in the blood shift in ways that are linked to brain health later in life.
2 min
14 Oct
Extra protein slows gum stem cell aging in rats
Stem cells meant to repair gum tissue sometimes age so rapidly in the lab that they stop working.
2 min
14 Oct
Immune response limits heart repair via one protein in mice
The heart has almost no ability to repair itself after damage. New research in mice identifies a protein that appears to…
2 min
Related topics
Newsletter

Stay in the loop

Every Thursday, the most important longevity research in your inbox, focused on what you follow.