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Head-to-head evidence comparison — which supplement is right for you?
Benfotiamine wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mixed evidence
4 of 12 studies with measurable effects showed benefit.
Top outcomes
150-600mg daily
With meals
Benfotiamine capsules
150-300mcg for maintenance; higher only if deficient under supervision
Any time with food
Potassium iodide (most common and studied)
4-12 weeks
8-12 weeks
4-12 weeks
4-8 weeks
Vitamin B and its derivatives for diabetic kidney disease
The Cochrane database of systematic reviews (2015) · Meta analysis · n=1354
There is an absence of evidence to recommend the use of vitamin B therapy alone or combination for delaying progression of DKD.
Effect of thiamine supplementation on glycaemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis
BMJ open (2022) · Meta analysis · n=364
There was a significant increase in high-density lipoprotein (HDL) (MD, 0.10; 95% CI: 0.10 to 0.20) at 3-month follow-up.
Therapeutic potential of benfotiamine and its molecular targets
European review for medical and pharmacological sciences (2018) · Systematic review
The reduction in AGEs subsequently decreases metabolic stress which benefits vascular complications seen in diabetes.
Maternal Iodine Status and Birth Outcomes: A Systematic Literature Review and Meta-Analysis
Nutrients (2023) · Meta analysis · n=42269
Birth weight was similar between UIC ≥ 150 μg/L and <150 μg/L (difference = 30 g, 95% CI −22 to 83, p = 0.3, n = 13, I2 = 89%) with no evidence of linear trend (4 g per 50 μg/L, −3 to 10, p = 0.2, n = 12, I2 = 80%).
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders
The Cochrane database of systematic reviews (2019) · Meta analysis · n=4317
This is equivalent to an increase of 38.32 µg/L (95% CI 24.03 to 52.61 µg/L).
Systematic review and meta-analysis of iodine nutrition in modern vegan and vegetarian diets
The British journal of nutrition (2023) · Meta analysis · n=4421
Vegan diets had the poorest iodine intake (17·3 µg/d) and were strongly associated with lower iodine intake (P = < 0·001) compared with omnivorous diets.
Limited RCT data with mixed results. Meta-analysis found insufficient evidence to determine clear benefit. Conservative estimates based on subset of positive trials showing modest improvements in neuropathic symptoms.
Based on meta-analyses showing urinary iodine concentration increases with supplementation. Effects only meaningful in iodine-deficient populations. Excessive intake (>300mcg) may increase thyroid cancer risk. Most studies used potassium iodide; kelp-derived forms have variable bioavailability.
AI-estimated from published studies. Interpret as directional guidance.
Benfotiamine has a higher evidence score (5.5/10 vs 8.5/10) and wins in 2 of 3 categories.
No known interactions between Benfotiamine and Iodine have been documented in our database. However, always consult a healthcare provider before combining supplements.