Head-to-head comparison

Collagen Peptides vs Casein Protein (micellar): Which Has More Protein?

Both Collagen Peptides and Casein Protein (micellar) are common enough protein choices that they get compared directly all the time — here's what the actual numbers say.

Collagen Peptides

90.0gprotein / 100g

370 cal · 0.5g fat · $$$ · Quality 0.0

Casein Protein (micellar)

80.0gprotein / 100g

360 cal · 1.5g fat · $$ · Quality 1.0

Collagen Peptides is in a different weight class here, protein-wise: 90.0g per 100g vs Casein Protein (micellar)'s 80.0g, a 10.0g difference that's more about food category than food quality.

Quality flips the other way, though: Casein Protein (micellar) has the stronger amino acid profile (highest DIAAS, slow-digesting) versus Collagen Peptides's incomplete — contains no tryptophan, cannot support muscle protein synthesis alone.

On price, Casein Protein (micellar) wins clearly — $$ against Collagen Peptides's $$$.

For anyone avoiding dairy specifically, Collagen Peptides is the clear pick over Casein Protein (micellar).

Casein Protein (micellar)'s typical serving also delivers more leucine (2300mg vs Collagen Peptides's 400mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.

Verdict

If raw protein density is what you're optimizing for, Collagen Peptides wins clearly. Choose Casein Protein (micellar) instead if its lower fat, cost, or prep time matters more to you than the extra grams.

Full nutrition comparison

Per 100gCollagen PeptidesCasein Protein (micellar)
Protein90.0g80.0g
Calories370360
Fat0.5g1.5g
Carbs0.0g6.0g
Fiber0.0g0.0g
Quality score0.01.0
Relative cost$$$$$
Prep time1 min2 min

Frequently asked

Which has more protein, collagen peptides or casein protein (micellar)?

Collagen Peptides has 90.0g of protein per 100g compared to Casein Protein (micellar)'s 80.0g.

Which is lower in calories?

Casein Protein (micellar) is lower in calories per 100g, at 360 vs the other's 370.