What goes in a meal-prep box? Build one and see how it balances

Build a lunch box on your own plate and see what is in it. Pick a protein and a starchy base, slide the amounts and watch how the box splits between veg, starch and protein, plus calories, protein and fibre.

We show the formula, based on USDA values, and compare the shape with the UK Eatwell Guide. Estimates only, not medical advice.