I keep seeing collagen powder recommended in keto circles. What does it actually do? Is it just a protein supplement or does it do something specific? Is it worth the extra cost?
Collagen powder on keto — worth adding or not?
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Collagen is a specific type of protein (different from whey or egg white protein) that your body uses to build connective tissue — skin, joints, tendons, ligaments, hair, nails. Most of us don't get much collagen from modern diets because we don't eat skin, bones, and cartilage the way our ancestors did.
On keto specifically, collagen is useful for:
— Hair and nail strength (especially if experiencing shedding in early keto)
— Joint comfort (many people report reduced joint pain)
— Skin elasticity — important if losing significant weight to help skin bounce back
— It's a keto-friendly protein source with no carbs and a very low insulin response
Practically: 1-2 scoops in coffee daily. Unflavored dissolves without taste. Worth it if you're losing significant weight or experiencing hair issues. Less essential for someone doing a short-term keto run.
My joints felt noticeably better after 6 weeks of daily collagen. I attribute this to the specific amino acids glycine and proline that are abundant in collagen and rare in muscle meat. Whether that's the collagen specifically or overall diet improvement, I can't say with certainty — but I notice when I stop taking it.
For athletes on keto: collagen before workouts (particularly 30-60 min before activities that stress joints and connective tissue) has some interesting research behind it. The vitamin C in the collagen supplement window enhances collagen synthesis in tendons and ligaments. Not mainstream yet but promising.
Vegetarians — collagen peptides are not vegan (derived from animal hides). If you want a plant-based alternative, focus on vitamin C rich foods (bell peppers, strawberries in small amounts) combined with proline-rich foods to support your body's own collagen production. Not identical but something.