Collagen Peptides
90.0gprotein / 100g370 cal · 0.5g fat · $$$ · Quality 0.0
Pea Protein Isolate
80.0gprotein / 100g375 cal · 6.0g fat · $$ · Quality 0.82
Collagen Peptides is in a different weight class here, protein-wise: 90.0g per 100g vs Pea Protein Isolate's 80.0g, a 10.0g difference that's more about food category than food quality.
Quality flips the other way, though: Pea Protein Isolate has the stronger amino acid profile (DIAAS-adjusted, low in methionine, high in leucine for a plant source) versus Collagen Peptides's incomplete — contains no tryptophan, cannot support muscle protein synthesis alone.
On price, Pea Protein Isolate wins clearly — $$ against Collagen Peptides's $$$.
The dietary-restriction question settles this for a lot of people before the macros even matter: Pea Protein Isolate is vegan, Collagen Peptides isn't.
Pea Protein Isolate's typical serving also delivers more leucine (2100mg vs Collagen Peptides's 400mg) — relevant if the goal is maximizing the muscle-protein-synthesis trigger per meal, not just total grams.
The real deciding factor is dietary fit, not macros: choose Pea Protein Isolate if you need it to be plant-based, choose Collagen Peptides otherwise — the protein numbers are close enough that diet compatibility should lead.
Full nutrition comparison
| Per 100g | Collagen Peptides | Pea Protein Isolate |
|---|---|---|
| Protein | 90.0g | 80.0g |
| Calories | 370 | 375 |
| Fat | 0.5g | 6.0g |
| Carbs | 0.0g | 5.0g |
| Fiber | 0.0g | 4.0g |
| Quality score | 0.0 | 0.82 |
| Relative cost | $$$ | $$ |
| Prep time | 1 min | 1 min |
Frequently asked
Which has more protein, collagen peptides or pea protein isolate?
Collagen Peptides has 90.0g of protein per 100g compared to Pea Protein Isolate's 80.0g.
Which is lower in calories?
Collagen Peptides is lower in calories per 100g, at 370 vs the other's 375.