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Head-to-head evidence comparison — which supplement is right for you?
Digestive Enzymes vs Vitamin B12: Vitamin B12 has the stronger overall evidence (7.5 vs 6/10); the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Vitamin B12 wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
5 of 5 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
13 of 19 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Digestive Enzymes and Vitamin B12 have evidence — compare verdict strength side-by-side.
1-2 capsules with meals (varies by product)
At beginning of meals or just before eating
Broad-spectrum enzyme blend capsules
500-1000mcg daily for maintenance; higher for deficiency
Morning (may be energizing), With or without food
Methylcobalamin (sublingual)
Immediate
Immediate
Immediate
2-4 weeks
4-8 weeks
Weeks to months
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.
Comprehensive Nutritional and Dietary Intervention for Autism Spectrum Disorder-A Randomized, Controlled 12-Month Trial
Nutrients (2018) · Rct · n=67
There was a significant improvement in nonverbal intellectual ability in the treatment group compared to the non-treatment group (+6.7 ± 11 IQ points vs. -0.6 ± 11 IQ points, p = 0.009) based on a blinded clinical assessment.
Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis
Irish journal of medical science (2024) · Meta analysis · n=4275
Regarding the hemoglobin level, the pooled effect sizes showed no difference between all routes of administration that could reach statistical significance.
Dosage exploration of combined B-vitamin supplementation in stroke prevention: a meta-analysis and systematic review
The American journal of clinical nutrition (2024) · Meta analysis · n=76664
In areas without and with partial folic acid fortification, combined B-vitamin supplementation significantly reduced the risk of stroke by 34% [RR: 0.66; 95% confidence interval (CI): 0.50, 0.86] and 11% (RR: 0.89; 95% CI: 0.79, 1.00), respectively.
Vitamin Status in Patients with Phenylketonuria: A Systematic Review and Meta-Analysis
International journal of molecular sciences (2024) · Meta analysis · n=770
The effect sizes were expressed as standardised mean differences.
Vitamin B12 has a higher evidence score (7.5/10 vs 6/10) and wins in 2 of 3 categories.
No known interactions between Digestive Enzymes and Vitamin B12 have been documented in our database. However, always consult a healthcare provider before combining supplements.
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The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.