I lab-tested 7 of the UK's best-selling protein powders. Here's what I found.

Bought at retail and sent to independent labs with the manufacturer's seals intact. I tested protein content, amino acids and heavy metals, then sent four products to a second lab. Sign up below to get the results sent to your email.

Logan in a lab holding a beaker of milk behind 7 protein powder tubs

LAB
TESTED

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Read the full investigation and explore the charts →