Manganese Supplement Guide
Evidence-based information on Manganese benefits, dosage, safety, and food sources — sourced from NIH, FDA, and PubMed.
Our assessment
The evidence shows that manganese is an essential trace mineral, but the data on supplementation is limited. While it is crucial for your body's antioxidant defense and energy production, the primary risk comes from overexposure, not deficiency. For most people, getting manganese from food is sufficient, and taking a supplement may not be necessary NIH ODS ↗.
How it works
Think of manganese as a cellular mechanic. It works in two key ways: first, it supports your mitochondria, the power plants of your cells, by enhancing their efficiency and biogenesis. Second, it is a critical part of your antioxidant defense system, helping to upregulate endogenous enzymes like superoxide dismutase (SOD) that protect your cells from damage NIH ODS ↗.
Safety profile
The FDA has received 379 adverse event reports for manganese supplements FDA FAERS ↗. The primary safety concern is manganese toxicity, which is not typically caused by food but can occur from drinking water with very high manganese levels or from inhaling manganese dust in industrial settings like welding or mining. Symptoms of toxicity include tremors, muscle spasms, hearing problems, mania, insomnia, and depression NIH ODS ↗. Data on interactions with medicines is not available NIH ODS ↗.
Our recommendation
We do not recommend routine manganese supplementation for the general public. The risk of toxicity, while rare from food, is a real concern with supplements. Focus on getting manganese from dietary sources like nuts, seeds, and whole grains. If you are considering a supplement, consult your healthcare provider first to determine if you have a verified deficiency NIH ODS ↗.
AI-assisted analysis based on NIH ODS, FDA, and PubMed data. Citations are linked to original sources.
Recommended Dosage
| Life Stage | Recommended Amount |
|---|---|
| Birth to 6 months | 0.003 mg |
| Infants 7–12 months | 0.6 mg |
| Children 1–3 years | 1.2 mg |
| Children 4–8 years | 1.5 mg |
| Boys 9–13 years | 1.9 mg |
| Girls 9–13 years | 1.6 mg |
| Teen boys 14–18 years | 2.2 mg |
| Teen girls 14–18 years | 1.6 mg |
| Adult men | 2.3 mg |
| Adult women | 1.8 mg |
| Pregnant teens and women | 2.0 mg |
| Breastfeeding teens and women | 2.6 mg |
Source: National Academies of Sciences, Engineering, and Medicine. Always consult your healthcare provider for personalized dosage recommendations.
Drug Interactions
Manganese is not known to interact or interfere with any medicines. Tell your doctor, pharmacist , and other health care providers about any dietary supplements and prescription or over-the-counter medicines you take. They can tell you if the dietary supplements might interact with your medicines or if the medicines might interfere with how your body absorbs , uses, or breaks down nutrients , such as manganese.
Check All InteractionsClinical Evidence
Manganese has been studied in 3+ clinical studies:
Emerging Patterns in Dietary Supplement Use Among US Adults, 1999-2023.Lam CS · 2026
Developmental Toxicity Evaluation of the Dietary Supplement Vinpocetine Using Mouse and Human 3D Gas...Maki A · 2026
Prevalence and Associated Factors of Excessive Dietary Supplement Use Among Japanese Adults: Cross-S...Sugimoto M · 2026
Health Goals This Supplement Supports
Frequently Asked Questions
How much Manganese should I take daily?
Refer to the Recommended Dosage table above. Individual needs vary by age, gender, and health status. Always follow the dosage on your supplement label and consult your healthcare provider.
What are the side effects of Manganese?
Studies have not shown any harm from the manganese in food and beverages, but some people have developed manganese toxicity by consuming water containing very high levels of manganese. Another cause of manganese toxicity is inhaling large amounts of manganese dust from welding or mining work. The symptoms of manganese toxicity include tremors , muscle spasms , hearing problems, mania, insomnia , d
Does Manganese interact with medications?
Manganese is not known to interact or interfere with any medicines. Tell your doctor, pharmacist , and other health care providers about any dietary supplements and prescription or over-the-counter medicines you take. They can tell you if the dietary supplements might interact with your medicines or