The supplement efficacy index

Every grade, with the receipts

23 supplements graded on evidence-based dosing and label transparency — not marketing. Each grade traces to the ingredient, its dose, and the research.

We benchmarked all 23 grades against Cochrane systematic reviews and NIH Office of Dietary Supplements fact sheets. 13 matched the published consensus on our first pass; we corrected the other 10 to fit the evidence — so every grade here now reflects the source it cites.

Grades are independent of affiliate status. See our grading methodology →

Grades, personalized for you Coming soon

Upload a Quest, Labcorp, or OB-GYN results PDF and we'll personalize your supplement grades against your own markers — for example, a lower-end ferritin reading can make iron an “A for you.” Observational only, never a diagnosis.

🔒 Unlocks after our privacy & data-handling (BAA) milestone. Your labs are never uploaded until then.
Greens & Superfoods Minerals Vitamins Creatine Omega-3 Multivitamins Probiotics Adaptogens

Greens & Superfoods (6)

B Huel Daily Greens
Daily Greens looks solid; one or two ingredients could be dosed higher to be a standout.
$50
84/100
[Evidence]tap to expand

A PubMed systematic review of 22 clinical trials found that daily mixed fruit and vegetable concentrate supplements may support your personal trend toward higher antioxidant vitamin levels (beta-carotene, vitamins C and E, folate) and improved oxidative balance markers, with early promising signals for inflammation and immune support — though study heterogeneity means larger standardized trials are still needed to confirm these patterns.

Benchmarked against: Health effects of mixed fruit and vegetable concentrates: a systematic review of the clinical interventions — tap to verify (PMID: 22081614 | DOI: 10.1080/07315724.2011.10719971)

B IM8 Daily Ultimate Essentials
Daily Ultimate Essentials looks solid; one or two ingredients could be dosed higher to be a standout.
$89
82/100
[Evidence]tap to expand

Broad-spectrum multivitamin/mineral supplements may support nutritional adequacy and help fill micronutrient gaps in adults with suboptimal dietary intake, though evidence for wellness benefits beyond gap-filling is mixed and the USPSTF (2022) found insufficient evidence to determine benefits for chronic disease prevention.

Benchmarked against: Multivitamin/mineral Supplements — Fact Sheet for Health Professionals (NIH Office of Dietary Supplements) — tap to verify (PMID 35727271)

B Gruns Daily
Daily looks solid; one or two ingredients could be dosed higher to be a standout.
$79
77/100
[Evidence]tap to expand

Broad-spectrum multivitamin-mineral blends may support micronutrient adequacy and help fill common dietary gaps in certain populations (e.g., folate for women of childbearing age, Vitamin D for older adults), though evidence for meaningful benefit in already-adequate healthy adults remains limited and does not support disease-prevention claims.

Benchmarked against: Multivitamin/mineral Supplements — Health Professional Fact Sheet (NIH Office of Dietary Supplements) — tap to verify (NIH ODS Fact Sheet (anchor ref PMID 17209206))

C AG1 (Athletic Greens) AG1
AG1 is middling — some recognized ingredients, but dosing or disclosure holds it back.
$99
67/100
[Evidence]tap to expand

A single small manufacturer-sponsored RCT (n=30, 4 weeks) found AG1 was safe to consume daily and modestly shifted gut microbiome composition, but did not clearly improve self-reported digestive wellness outcomes; no independent systematic reviews or NIH ODS fact sheet exist for AG1 or greens powders as a category, leaving the overall evidence base limited and inconclusive.

Benchmarked against: The effects of AG1 supplementation on the gut microbiome of healthy adults: a randomized, double-blind, placebo-controlled clinical trial — tap to verify (PMID 39352252)

C Athletic Greens Ultimate Daily
Ultimate Daily is middling — some recognized ingredients, but dosing or disclosure holds it back.
$97
64/100
[Evidence]tap to expand

A single small industry-affiliated RCT (n=30, 4 weeks) found AG1 was well-tolerated and showed a non-significant trend toward improved digestive symptom quality of life and enrichment of beneficial probiotic taxa in healthy adults; no independent replication or systematic review exists, limiting confidence in these preliminary patterns.

Benchmarked against: The effects of AG1 supplementation on the gut microbiome of healthy adults: a randomized, double-blind, placebo-controlled clinical trial — tap to verify (PMID 39352252 / DOI 10.1080/15502783.2024.2409682)

D Bloom Greens & Superfoods
Bloom Greens grades D: spirulina has supportive evidence, but the multi-ingredient blend has no whole-product clinical trials.
$40
50/100
[Evidence]tap to expand

Spirulina (a primary ingredient in Bloom Greens) may support your personal trend toward reduced inflammatory markers and antioxidant capacity per a 2025 meta-analysis of 22 RCTs — however no product-level clinical trials exist for Bloom Greens & Superfoods as a multi-ingredient proprietary blend, so whole-product wellness evidence remains insufficient.

Benchmarked against: Spirulina supplementation and its effects on inflammation and oxidative stress: A systematic review and Meta-analysis on randomized clinical trials — tap to verify (DOI 10.1016/j.jff.2025.106945)

Minerals (4)

B Reference Magnesium Glycinate (400 mg)
Magnesium Glycinate (400 mg) looks solid; one or two ingredients could be dosed higher to be a standout.
$16
75/100
[Evidence]tap to expand

Supplemental magnesium may support personal sleep quality and mild stress-recovery patterns, particularly for individuals with low baseline magnesium status, based on a 2024 systematic review finding it "likely useful" for self-reported anxiety and insomnia — benefits appear most consistent in those who are suboptimally replete.

Benchmarked against: Examining the Effects of Supplemental Magnesium on Self-Reported Anxiety and Sleep: A Systematic Review — tap to verify (PMID 38817505)

C DaVinci Zinc Picolinate
Zinc is well-supported for immune function; the picolinate-form absorption edge rests on limited evidence.
$13
60/100
[Evidence]tap to expand

Zinc supplementation is well-supported for immune function and cellular recovery; zinc picolinate specifically showed suggestive tissue-level absorption benefits (hair, urine, erythrocytes) vs. placebo in one small 4-week RCT, but the picolinate-form advantage over other forms remains limited to a single 1987 trial (n=15) plus one abstract-only study — overall, zinc glycinate and gluconate have stronger comparative absorption evidence.

Benchmarked against: Comparative Absorption and Bioavailability of Various Chemical Forms of Zinc in Humans: A Narrative Review — tap to verify (PMID: 39770891 / DOI: 10.3390/nu16244269)

C LMNT Recharge Electrolyte Drink Mix
Electrolytes support hydration during prolonged exercise; the high sodium dose hasn't been studied in large everyday-use RCTs.
$45
60/100
[Evidence]tap to expand

Electrolyte-containing beverages (sodium, potassium, magnesium) during endurance exercise may support hydration balance better than water alone, with a meaningful body of evidence in athletes exercising more than 60 minutes, though evidence for casual everyday use remains limited and LMNT's very high sodium dose (1000 mg/serving) has not been directly studied in large RCTs.

Benchmarked against: Rehydration during Endurance Exercise: Challenges, Research, Options, Methods — tap to verify (PMID 33803421 / DOI 10.3390/nu13030887)

C Metabolic Maintenance Magnesium Glycinate
Magnesium may support personal sleep-onset patterns, though the trial evidence is low-to-very-low quality (GRADE).
$24
60/100
[Evidence]tap to expand

A 2021 PubMed systematic review and meta-analysis (3 RCTs, n=151) found oral magnesium supplementation may support personal sleep-onset patterns — sleep latency improved ~17 min vs. placebo — though overall evidence quality was rated low-to-very-low by GRADE, all trials carried moderate-to-high risk of bias, and the evidence base covers magnesium generally rather than the glycinate form specifically; magnesium may support your personal sleep trends, particularly if your baseline magnesium status is low — bring patterns to your provider.

Benchmarked against: Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis — tap to verify (PMID: 33865376 / DOI: 10.1186/s12906-021-03297-z)

Vitamins (4)

B WeCare Vitamin D3
Vitamin D3 looks solid; one or two ingredients could be dosed higher to be a standout.
$12
75/100
[Evidence]tap to expand

Vitamin D3 supplementation may support bone mineral density in postmenopausal women and older adults (your personal trend toward stronger bones), though evidence for fall/fracture reduction is mixed and evidence for other wellness outcomes remains inconclusive per the NIH Office of Dietary Supplements.

Benchmarked against: Vitamin D — Fact Sheet for Health Professionals (NIH Office of Dietary Supplements) — tap to verify

B Nature's Sunshine Vitamin C
Vitamin C looks solid; one or two ingredients could be dosed higher to be a standout.
$16
75/100
[Evidence]tap to expand

Regular Vitamin C supplementation may support a modest shortening of your personal cold duration (roughly 8% in adults, 14% in children) as part of your immune wellness routine, with stronger patterns observed for individuals under high physical stress or with low baseline Vitamin C intake — bring trends to your provider.

Benchmarked against: Vitamin C — Health Professional Fact Sheet (NIH Office of Dietary Supplements), citing Cochrane Database Syst Rev 2007;(3):CD000980 — tap to verify (PMID: 17636648)

B Douglas Labs Vitamin B12
Vitamin B12 looks solid; one or two ingredients could be dosed higher to be a standout.
$18
75/100
[Evidence]tap to expand

B12 supplementation has well-established evidence for supporting normal energy metabolism, neurological function, and red blood cell formation in individuals with deficiency or absorption challenges (e.g., vegans, older adults, metformin users), but NIH ODS notes it does not appear to improve energy or performance in people who already have sufficient B12 status — making benefit population-dependent and your personal trend the most meaningful signal.

Benchmarked against: Vitamin B12 — Fact Sheet for Health Professionals, NIH Office of Dietary Supplements — tap to verify

B Bluebonnet CoQ10 Ubiquinol
A 2024 GRADE-assessed meta-analysis found CoQ10 may support post-exercise recovery markers in a dose-dependent pattern.
$35
70/100
[Evidence]tap to expand

A 2024 GRADE-assessed meta-analysis of 28 RCTs (830 adults) found CoQ10 supplementation may support post-exercise recovery by significantly reducing personal oxidative stress and muscle stress markers (CK, LDH, myoglobin, MDA) in a dose-dependent pattern, though physical performance outcomes were mixed and most trial populations were Asian.

Benchmarked against: The effects of coenzyme Q10 supplementation on biomarkers of exercise-induced muscle damage, physical performance, and oxidative stress: A GRADE-assessed systematic review and dose-response meta-analysis of randomized controlled trials — tap to verify (PMID: 38479900 | DOI: 10.1016/j.clnesp.2024.01.015)

Creatine (3)

B Transparent Labs Creatine HMB
Creatine HMB looks solid; one or two ingredients could be dosed higher to be a standout.
$49
79/100
[Evidence]tap to expand

A 2018 PubMed meta-analysis (10 RCTs, 324 participants) found HMB supplementation significantly reduced personal muscle-damage markers (CK and LDH) in a time-dependent pattern, and creatine monohydrate — the product's co-ingredient — has separately established Grade-A support for exercise performance; together, the combination may support your personal recovery trend and strength adaptations, particularly with consistent use over 6+ weeks, though individual results vary.

Benchmarked against: The Effects of Beta-Hydroxy-Beta-Methylbutyrate Supplementation on Recovery Following Exercise-Induced Muscle Damage: A Systematic Review and Meta-Analysis — tap to verify (PMID 29676656)

A Reference Creatine Monohydrate (5 g)
Creatine monohydrate is among the most thoroughly studied supplements for muscle strength and power output.
$18
90/100
[Evidence]tap to expand

Among the most thoroughly studied wellness supplements, creatine monohydrate (5 g/day) may support muscle strength and power output during repeated high-intensity activity, with a consistent personal benefit pattern observed across multiple randomized trials in both men and women — bring individual response trends to your provider.

Benchmarked against: NIH Office of Dietary Supplements: Dietary Supplements for Exercise and Athletic Performance — Health Professional Fact Sheet (Creatine section) — tap to verify (PMID: 28615996; supporting meta-analysis PMID: 37432300)

A NOW Sports Creatine Monohydrate
Creatine monohydrate consistently supports strength and power in short-burst activity; well-studied and low-cost.
$20
90/100
[Evidence]tap to expand

Numerous clinical trials consistently show creatine monohydrate may support strength, power output, and performance during repeated high-intensity, short-burst activity (e.g., resistance training, sprinting); of little observed benefit for endurance exercise; considered safe for short-term use in healthy adults at typical doses.

Benchmarked against: Dietary Supplements for Exercise and Athletic Performance — Health Professional Fact Sheet (NIH Office of Dietary Supplements) — tap to verify (NIH ODS — ISSN position stand, J Int Soc Sports Nutr. 2017;14:18)

Omega-3 (2)

C Reference Omega-3 EPA+DHA (2 g)
Omega-3 EPA+DHA (2 g) is middling — some recognized ingredients, but dosing or disclosure holds it back.
$22
65/100
[Evidence]tap to expand

A Cochrane review of 79 trials (112,059 participants) found that EPA+DHA supplementation probably makes little or no difference to cardiovascular events or mortality at typical supplement doses, though it may support healthy triglyceride levels as part of your personal wellness pattern.

Benchmarked against: Omega-3 fatty acids for the primary and secondary prevention of cardiovascular disease — Cochrane Database of Systematic Reviews 2018, Art. No. CD003177 — tap to verify (PMID 30019766 / DOI 10.1002/14651858.CD003177.pub3)

B Spring Valley Omega-3 Fish Oil
Fish oil reliably supports healthy triglyceride levels; this product's per-serving EPA+DHA is on the lower side.
$14
70/100
[Evidence]tap to expand

Fish oil supplements reliably lower triglyceride levels at most doses and may support cardiovascular wellness trends, particularly for individuals with low dietary omega-3 intake, though protective effects at typical OTC doses (1g/day, ~300mg EPA+DHA) are modest and more consistent among those with existing coronary risk than in the general healthy population.

Benchmarked against: Omega-3 Fatty Acids — Fact Sheet for Health Professionals, NIH Office of Dietary Supplements — tap to verify (PMID 31567003)

Multivitamins (2)

C Ritual Essential for Women
Essential for Women is middling — some recognized ingredients, but dosing or disclosure holds it back.
$33
62/100
[Evidence]tap to expand

Multivitamin/mineral supplements may support nutritional sufficiency in women with dietary gaps — particularly for folate, vitamin D, and iron — but current evidence does not consistently show broader wellness benefits beyond correcting known deficiencies in otherwise well-nourished adults.

Benchmarked against: Multivitamin/mineral Supplements — Health Professional Fact Sheet (NIH Office of Dietary Supplements) — tap to verify (PMID 16880453)

D Ritual Essential for Men
Multivitamins may support cognition in older men, but show limited benefit for healthy men under 60 with adequate diets.
$33
50/100
[Evidence]tap to expand

Multivitamin/mineral supplementation may support memory and cognitive patterns in older men (COSMOS-Mind, COSMOS-Web RCTs), but large trials including COSMOS found no consistent personal trend benefit for cancer prevention or cardiovascular wellness in men; evidence of benefit for healthy men under 60 with adequate diets remains limited and mixed.

Benchmarked against: NIH Office of Dietary Supplements — Multivitamin/mineral Supplements: Fact Sheet for Health Professionals (updated July 17, 2024) — tap to verify (PMID 35294969; PMID 36102337)

Probiotics (1)

C+ Seed DS-01 Daily Synbiotic
DS-01 has one published RCT (industry-funded); synbiotic benefits are strain-specific and not yet independently replicated.
$50
68/100
[Evidence]tap to expand

The NIH ODS notes that probiotic and synbiotic benefits are strain-specific and that many commercial multi-strain products lack independent clinical validation; some evidence from probiotic class-level reviews supports modest improvements in digestive comfort and GI quality-of-life for select strains, but DS-01 as a specific formulation has only one published RCT (industry-funded) — making the overall body of evidence for this product's particular wellness claims preliminary and not yet independently replicated.

Benchmarked against: Probiotics — Health Professional Fact Sheet (NIH Office of Dietary Supplements) — tap to verify (NIH ODS; Seed DS-01 RCT DOI 10.3390/nu18020255)

Adaptogens (1)

B Oregon's Wild Harvest Ashwagandha
Ashwagandha looks solid; one or two ingredients could be dosed higher to be a standout.
$22
75/100
[Evidence]tap to expand

Multiple systematic reviews — including a 2024 meta-analysis of 9 RCTs in 558 adults (PMID 39348746) showing significant reductions on the Perceived Stress Scale, Hamilton Anxiety Scale, and serum cortisol — suggest ashwagandha may support personal stress and anxiety patterns; the NIH ODS confirms preliminary benefit but notes more research is needed to establish optimal preparation and dosing.

Benchmarked against: Ashwagandha: Is it helpful for stress, anxiety, or sleep? — NIH Office of Dietary Supplements Health Professional Fact Sheet — tap to verify (PMID 39348746)

Educational only. Not medical advice. These statements have not been evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease. Grades reflect published effective-dose ranges and label transparency — they do not test the product. Consult your healthcare provider before starting any supplement. Sage + Stone takes no money from graded brands.