What works, what does not, and what is dangerous. Reviewed by the Scan Dose Research Team.
Effective Dose
Key Finding
PMID
N/A
Vegetables → protein → carbs = 44% lower blood sugar spike. FREE.
PMID: 25862090
½-1 tbsp diluted, before meals
Reduces post-meal blood sugar spike by ~54% in healthy people. LIQUID ONLY — pills don't work.
PMID: 28292654
Branded extract, daily
Modestly improves blood sugar when NOT well-controlled by meds. Cassia variety (not Ceylon).
PMID: 30867693
200-400mg daily
Helps prediabetes/metabolic syndrome. Does NOT help treated type 2 diabetes.
PMID: 28526383
500mg 2-3x/day
May reduce blood sugar. Heart rhythm risk. Multiple drug interactions.
PMID: 32191903
Per physician
May help type 2 diabetes. HIGH doses WORSEN insulin sensitivity in healthy people.
PMID: 17519436
Supplement
Finding
ACV pills/gummies
ZERO effect on blood sugar (only liquid works)
Bitter melon
Did NOT lower HbA1c or fasting glucose vs placebo
Moringa leaf
Does NOT improve blood sugar in type 2 diabetes
GlucoseGoddess Anti-Spike
NEVER tested as complete product. Half studied Reducose dose. GNC sells double for 62% of price.