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Scored forOutcome alternatives
Natural Factors90 count • 30 servingsAvailable now$18.24$0.61 / serving4.7 · 1,210 ratings
87−7 pts from leader
#107 of 7799 ranked for immune functionLeader · Centrum, Centrum, Men Complete Multivitamin, 120 Tablets — 94
Why this ranks #107 for immune function
- Evidence fitZinc Citrate and Retinyl Palmitate lead the evidence here, backed by Calcium Ascorbate.
- Dose fit2 of 3 dosed ingredients land in the studied range. Calcium Ascorbate at 75.9 mg (calculated) sits below the studied 250-1000 mg window.
- Price / serving$0.61 per serving — high price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustSolid trust signals from buyer ratings, with room to grow.
The numbers · Immune function
87
96
78
99
75.9 mg (calculated)Below rangebelow the studied 250-1000 mg window
15 mgIn rangeinside the studied 15-50 mg window
1500 mcg (calculated)In rangeinside the studied 700-1500 mcg window
1500 mcg
30 mg
100 mcg
3 mg
75.9 mg
75.9 mg
50 mg
400 mcg
1.5 mg
20 mg
100 mg
10 mg
1000 mcg
5 mg
40 mg
5 mg
100 mg
10 mg
250 mcg
50 mg
20 mg
500 mcg
20 mg
100 mcg
30 mg
50 mg
40 mg
25 mcg
20 mcg
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