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Head-to-head evidence comparison — which supplement is right for you?
Collagen and Digestive Enzymes are closely matched across evidence, studies, and safety.
Verdict
Likely helps
6 of 6 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
6 of 6 studies with measurable effects showed benefit.
Top outcomes
10-15g
Any time of day, With vitamin C for enhanced synthesis
Hydrolyzed collagen peptides (powder)
1-2 capsules with meals (varies by product)
At beginning of meals or just before eating
Broad-spectrum enzyme blend capsules
8-12 weeks
8-12 weeks
12 weeks
First week
Immediate
Immediate
Immediate
Effects of Collagen Supplements on Skin Aging: A Systematic Review and Meta-Analysis
The American Journal of Medicine (2025) · Meta analysis · n=1474
23 RCTs with 1474 participants
Effect of collagen supplementation on knee osteoarthritis: an updated systematic review and meta-analysis of randomised controlled trials
Clinical and experimental rheumatology (2025) · Meta analysis · n=870
The meta-analysis revealed an overall significant improvement of both function [MD, -6.46 (95% CI -9.52, -3.40); I2=75%; p=0.00001] and pain scores [MD, -13.63 (95% CI -20.67, -6.58); I2=88%; p=0.00001], favouring collagen supplementation.
Impact of Collagen Peptide Supplementation in Combination with Long-Term Physical Training on Strength, Musculotendinous Remodeling, Functional Recovery, and Body Composition in Healthy Adults: A Systematic Review with Meta-analysis
Sports medicine (Auckland, N.Z.) (2024) · Meta analysis · n=768
This systematic review and meta-analysis represents the first comprehensive investigation into the effects of long-term CP supplementation combined with regular physical training on various aspects of musculoskeletal health in adults.
Efficacy of pancreatic enzyme replacement therapy in chronic pancreatitis: systematic review and meta-analysis
Gut (2017) · Meta analysis · n=511
PERT improved CFA compared with baseline (83.7±6.0 vs 63.1±15.0, p<0.00001; I2=89%) and placebo (83.2±5.5 vs 67.4±7.0, p=0.0001; I2=86%).
Complementary and Alternative Medicine for Autism - A Systematic Review
Journal of autism and developmental disorders (2025) · Systematic review · n=39
The results of this systematic review identified that for autistic people, vitamin and mineral supplements may only be of benefit if there is a deficiency.
Asciminib monotherapy in patients with CML-CP without BCR::ABL1 T315I mutations treated with at least two prior TKIs: 4-year phase 1 safety and efficacy results
Leukemia (2023) · Rct · n=115
After ≈4-year median exposure, 69.6% of patients remained on asciminib.
Meta-analysis of 23 RCTs (n=1474) showed high-quality studies had less effect than industry-funded studies. Benefits include improved skin elasticity and hydration. Hydrolyzed collagen peptides preferred for bioavailability.
AI-estimated from published studies. Interpret as directional guidance.
Both Collagen and Digestive Enzymes are closely matched — the best choice depends on your specific health goals.
For reduce inflammation, Digestive Enzymes has a higher relevance score (85 vs 80).
No known interactions between Collagen and Digestive Enzymes have been documented in our database. However, always consult a healthcare provider before combining supplements.