1. Cow’s milk

MAKING up to 80 per cent of the protein found in cow’s milk, this is one of the best sources of natural casein possible. 500ml of semi-skimmed cow’s milk contains roughly 20g of protein with full-fat milk containing slightly less protein and more fat.

Next: page 2 of 5 – Cream cheese and salmon

Robert Seaborne BSc (Hons), MS

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