What it is
Nutrition links personal health to the planet. The same plate is a question of energy and nutrients for the body, and of land, water and farming for the world.
Public-health advice is broad and stable: plenty of fruit, vegetables, legumes and whole grains; less free sugar, salt and industrially produced fat. Agriculture, meanwhile, already uses about half of the world’s habitable land.
WHO healthy-diet targets for adults
The daily limits and minimums WHO recommends, side by side.
- Aim for at least400 g a dayFruit and vegetables
- Keep under10 % of energyFree sugars
- Keep under5 g a daySalt
Source: World Health Organization
Ideas to carry
- 1
Boring advice works
The best-supported guidance has barely changed in decades.
- 2
The plate is a landscape
What we eat decides how land is used far beyond the kitchen.
- 3
Know what is in it
Choosing food by what is in it, not only by price, is the idea behind GoodEat.
Established What we know
Interpretation The older lens · Religious and folk practice
Many traditions treat eating as ritual, from the Islamic and Jewish dietary laws to the Japanese “hara hachi bu”, eating until 80% full.
Reading
- 2008In Defense of FoodMichael Pollan
- currentHealthy diet fact sheetWorld Health Organization
- currentEat wellNHS
Nutrition science in 2026
Still: eat your vegetables
Connected subjects, projects and writing
- Self-sufficient livingSubject · Frontier
Established Growing food is the largest part of feeding a household from its own land.
- Body and healthSubject · Life
Health, movement, sleep and the biology of energy: the physical ground every plan stands on.
- Living systemsSubject · Life
Cells, genes, proteins and ecosystems: life as systems of feedback, from molecules to forests.
- GoodEatProject · Life
A healthier-takeaway marketplace concept: choose local kitchens by what is in the food, not only by price.
Sources
- Healthy diet (fact sheet) World Health Organization. Checked 5 Nov 2026.
- Land Use Our World in Data. Checked 5 Nov 2026.
- Eat well NHS. Checked 5 Nov 2026.