A doctor has shared some surprising advice about a popular supplement, claiming it might not be doing what we expect. Doctor Amir Khan gave a detailed breakdown on collagen and whether it can help reduce the appearance of ageing. Appearing on Good Morning Britain ( GMB ) on March 27, Dr Amir gave host Kate Garraway a “shock” after explaining what we should be prioritising. Collagen is a protein found in the human body, which provides strength, elasticity, and support to skin, bones, tendons,