Eating close to the source

"Eating close to the source" is the simple idea that the fewer steps between a food's origin and your plate, the better — less processing, less time in transport and storage, and fewer additives needed to keep it stable along the way.

What this looks like in practice

• Whole fruit and vegetables over packaged and pre-cut versions.
• Whole grains over refined flour and its products.
• Local and seasonal produce where it is genuinely available, rather than imported equivalents.
• Reading an ingredients list as a rough test: a short list of recognisable foods is generally a good sign; a long list of preservatives, stabilisers and flavour compounds is a reason to look for a simpler alternative.

What the evidence says

This is one of the more evidence-backed pieces of general dietary advice on this site. Large population studies consistently associate diets high in ultra-processed food with worse health outcomes — more heart disease, more type 2 diabetes, higher all-cause mortality — even after adjusting for calories, salt, sugar and fat content. The exact mechanism is still debated, but the direction of the evidence is unusually consistent for nutrition science. "Eat food that still resembles where it came from" is not a fad; it is close to mainstream dietetic advice, just phrased in the language of this tradition.