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collagen cofactorsWoman preparing collagen with fruit in a sunny kitchen

Collagen and Vitamin C: Why They Are Paired, How Much You Need and When

Vitamin C is the cofactor your body needs to build collagen fibres. How much you actually need (less than you think), whether to take it with your collagen, and what the Shaw trial used.

16:8Man preparing a collagen drink in the kitchen during his eating window

Does Collagen Break a Fast? The Straight Answer for Intermittent Fasting

Yes. Collagen is protein, it has calories and it triggers an insulin and mTOR response, so it breaks a strict fast. When that matters, when it does not, and how to fit collagen into 16:8 without lo...

collagen researchModel of skin layers showing where collagen sits

Does Collagen Actually Work? The Evidence, Graded Honestly

Skin: strong evidence. Joints and tendons: moderate, with exercise. Muscle and bone: moderate. Hair and gut: weak. What the trials show, the sceptic's argument answered, and how to tell if it is wo...

bovine collagenKUDU bovine liquid collagen sachets on a kitchen table

Bovine Collagen Benefits: What It Does, Who It Is For and How It Compares

Bovine collagen provides type I and III collagen, the two types in skin, tendon, ligament, muscle and gut lining. The benefits with trial doses, how it compares to marine, and what to look for.

collagen for menMen training together with KUDU collagen and creatine

Collagen for Men: Strength, Joints, Skin and Hair, Without the Beauty-Aisle Marketing

Men lose collagen at about 1% a year from their twenties. What collagen actually does for men: the strength, tendon, joint and skin trials, honest hair evidence, and the dose that matters.

buying guideScientist reviewing protein digestion data

Hydrolysed Collagen vs Collagen Peptides vs Gelatin: What the Labels Actually Mean

Hydrolysed collagen and collagen peptides are the same thing. Gelatin is not. What each term means, how to read a UK collagen label, and which one the studies used.