Collagen Peptides
Episodes
Notes
Science vs · Collagen Peptides: Should You Take Them?
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How Does Clare Collins Make Collagen Without Powder?
Clare Collins, a professor of nutrition and dietetics at the University of Newcastle, says those amino acids also come from meat, including fish, and from mushrooms, soybeans, legumes, asparagus, sunflower seeds, peanuts, and egg whites. An orange adds vitamin C. She does not take collagen supplements. After she compared the price of collagen powders per kilo, she chose lamb chops for dinner.
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Why Does Keith Baar Take Hydrolyzed Collagen?
Keith Baar, at the University of California, Davis, takes hydrolyzed collagen for joint health, where the evidence is better than it is for skin. He takes it to give cells the building blocks they need when they make collagen. He says animal bones from a Sunday chicken roast or a local butcher can stand in for the powders.
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Does Collagen Need Exercise to Work?
Rob Erskine, at Liverpool John Moores University, says exercise is required for hydrolyzed collagen to increase collagen in tendons. Tissues that have been stressed and are trying to produce more collagen soak up amino acids more readily. Taking collagen without exercise probably does not help a tendon, because the tissue needs to be stressed.
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What Happens When You Eat Collagen?
Luc van Loon, at Maastricht University, says the gut breaks eaten collagen down into amino acids. Clare Collins says those amino acids build muscles, make enzymes needed in every chemical reaction of the body, or replace cells in the kidneys, lungs, and eyes. The body decides what to do with the amino acids, and the person has no control over that.
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Why Didn't Collagen Supplements Improve Skin?
A review from South Korea of 23 studies with more than 1400 participants found that in high quality studies considering the placebo effect, collagen supplements did not work. Research without industry funding showed no significant difference for skin.
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Can Collagen Cream Get Into the Skin?
Dermatologist Natalia Spierings says rubbing collagen or collagen peptides onto skin with a face cream does not work. The peptide is too big to penetrate deep down to where collagen lives. She says the peptide is like an elephant trying to squeeze through a dog flap door in a patio door. Collagen in a fancy moisturizer stays on the skin until it washes away.