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Head-to-head evidence comparison — which supplement is right for you?
Iodine and Mucuna Pruriens are closely matched across evidence, studies, and safety.
Verdict
Mixed evidence
4 of 12 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
3 of 3 studies with measurable effects showed benefit.
Top outcomes
150-300mcg for maintenance; higher only if deficient under supervision
Any time with food
Potassium iodide (most common and studied)
200-500mg extract (standardized to 15-20% L-DOPA)
Morning or early afternoon, On empty stomach or with protein
Standardized extract (15-20% L-DOPA)
4-12 weeks
4-8 weeks
1-4 weeks
8-12 weeks
4-8 weeks
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.
Levodopa and Plant-Derived Bioactive Compounds in Parkinson's Disease: Mechanisms, Efficacy, and Future Perspectives
CNS neuroscience & therapeutics (2025) · Systematic review
Although levodopa is indispensable for the symptomatic management of PD, emerging evidence supports the integration of plant-derived bioactive compounds as adjunct therapies with disease-modifying potential.
Phytochemicals in Parkinson's Disease: a Pathway to Neuroprotection and Personalized Medicine
Cell biochemistry and biophysics (2025) · Systematic review
This review provides a comprehensive overview of the neuroprotective potential of phytochemicals in PD management, examining the mechanisms underlying PD pathogenesis and emphasizing neuroprotection.
Natural angiotensin converting enzyme inhibitors: A safeguard against hypertension, respiratory distress syndrome, and chronic kidney diseases
Phytotherapy research : PTR (2023) · Systematic review
Alkaloids, amino acids, anthocyanidins, flavonoids, glucosinolates, isoflavonoids, phenolic acids, polyphenolics, and triterpenoids are among the bioactive metabolites pocessing an impressive ACE inhibitory activity.
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.
Based on systematic reviews examining L-DOPA content for PD management. Tolerance development (40% prevalence) limits long-term effectiveness. Nausea is common side effect. Studies focus on adjunct therapy rather than monotherapy.
AI-estimated from published studies. Interpret as directional guidance.
Both Iodine and Mucuna Pruriens are closely matched — the best choice depends on your specific health goals.
For testosterone & cortisol balance, Iodine has a higher relevance score (85 vs 55).
No known interactions between Iodine and Mucuna Pruriens have been documented in our database. However, always consult a healthcare provider before combining supplements.