Metabolic & Cardiometabolic
Anti-Spike Formula supplement decreases postprandial glucose spike by 40 percent
In plain terms: Does the "Anti-Spike Formula" supplement cut glucose spikes by 40%?
No independent trial of the combined product exists, so the specific 40% claim is untested; only individual ingredients have (mixed) data.
Evidence ladder
How far up the ladder this claim has climbed. A high consensus on a low rung means "consistent so far," not "proven in people."
Top evidence so far: All trials, pooled (Meta-analysis)
How the studies fall
The evidence (11)
| Source | Grade | Stance | Quality | Finding |
|---|---|---|---|---|
| Venugopal 2024 · Nutrients | RCT | supports | moderate | Placebo-controlled crossover found a mulberry-leaf/apple-peel nutraceutical lowered postprandial glucose and insulin, supporting multi-ingredient blends but not the specific formula or 40%. |
| Beejmohun 2014 · BMC Complement Altern Med | RCT | mixed | low | Ceylon cinnamon extract reduced postprandial glucose in healthy volunteers — separate ingredient; no test of the multi-ingredient formula. |
| Sun 2025 · Nutrients | RCT | supports | moderate | Randomized crossover in prediabetic adults found mulberry leaf plus corn silk inhibited carbohydrate enzymes and lowered postprandial glucose, corroborating the alpha-glucosidase mechanism. |
| Mela 2020 · Nutr Metab (Lond) | RCT | mixed | moderate | RCT testing 8 plant extracts found effects varied widely with several offering little benefit and GI-tolerance trade-offs, showing plant-extract glucose-blunting is inconsistent. |
| Thondre 2024 · Nutrients | RCT | mixed | moderate | Mulberry-leaf (Reducose) alone dose-dependently lowered glycemic response — an ingredient, NOT the combined formula; industry-linked (OptiBiotix). |
| Lown 2017 · PLoS One | RCT | mixed | moderate | Mulberry extract improved glucose tolerance/insulin in normoglycemic adults — single-ingredient evidence, manufacturer-supported; combined product and 40% figure untested. |
| Asbaghi 2020 · Pharmacol Res | meta-analysis | mixed | moderate | Meta-analysis found chromium modestly improved glycemic indices in T2D but effects were small and population-dependent, weak support for chromium as a spike blocker. |
| Cherta-Murillo 2025 · J Nutr | RCT | supports | moderate | RCT found milk with mulberry leaf extract reduced early glucose and insulin responses in a food matrix (magnitude modest, not ~40%). |
| Zarezadeh 2023 · Diabetol Metab Syndr | meta-analysis | mixed | moderate | Umbrella meta-analysis reported inconsistent glycemic effects of cinnamon across reviews, real but heterogeneous and modest, not a reliable 40% spike cut. |
| Althuis 2002 · Am J Clin Nutr | meta-analysis | contradicts | moderate | Meta-analysis found chromium had no significant effect on glucose or insulin among non-diabetic individuals, weakening chromium's contribution to any glucose-spike claim in healthy users. |
| Moridpour 2024 · Phytother Res | meta-analysis | mixed | moderate | Dose-response meta-analysis of 24 RCTs found cinnamon lowered fasting glucose/HOMA-IR/HbA1c in T2D but not insulin, and postprandial-spike effects were not the endpoint, a contested benefit. |
Disagree, or know a study we missed?
We grade by evidence, not opinions. The way to weigh in is to point us to a study we haven't cited (check the evidence table above first), or to flag a problem with one we have. Every submission is reviewed; if it holds up, the grade updates and shows in Science Changes Its Mind.
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Educational only, not medical advice. Grades and scores reflect published evidence weighted by study design and quality; see the methodology.