THE HARD LIMIT

Under 100 calories.

Everything on the shelf that comes in under 100 kcal for the serving printed on its own pack — not per 100 g, not per “portion” someone invented. 25 products, 15 of which you can realistically have tonight.

“Per serving” means the serving the brand prints on the pack — a can, a bottle, a 20 g sachet. Where a label only publishes per-100 g figures, that's the serving shown. Estimated figures carry a “~” and name their source on the product page. Not medical or dietary advice — how the score works.