mineral · for joint pain
Manganese
Needed to build the cushioning matrix in cartilage, and to mop up damage inside it.
Say that in clinical terms
Essential cofactor for glycosyltransferases in cartilage proteoglycan synthesis. MnSOD scavenges superoxide in chondrocytes.
How strong is the research?
2 papers read, 1 supporting.
Who was studied: Studied in middle-aged women with osteoarthritis that was getting worse.
The only clinical trial in which manganese appears in connection with joint pain is a 16-week randomized placebo-controlled crossover pilot (PMID 10050562) that gave glucosamine HCl 1500 mg + chondroitin sulfate 1200 mg + manganese ascorbate 228 mg per day as a single inseparable combination. The positive finding for knee pain cannot be attributed to manganese alone; the trial was explicitly designed to evaluate the combination. No trial of manganese as a standalone intervention for joint pain or osteoarthritis was found in PubMed, Cochrane Library, or general web searches. Systematic reviews of nutraceuticals in osteoarthritis (e.g. PMID 29018060, PMID in Scientific Reports 2020) do not lis
How much to take
daily
2–5 mg
Upper limit 11 mg/day. Glycinate form preferred for absorption. Take with meals.
Before you take it
- NIH ODS Tolerable Upper Intake Level (UL) for manganese is 11 mg/day for adults 19 and older; the primary adverse effect of chronic high-dose intake is neurotoxicity (manganism).
- People with chronic liver disease have impaired manganese elimination and face heightened toxicity risk even at lower supplemental intakes.
- NIH ODS explicitly states manganese has no known clinically relevant interactions with medications. Antibiotic chelation interactions (tetracyclines, fluoroquinolones) that are well-documented for calcium, magnesium, iron, and zinc do not have equivalent NIH ODS documentation for manganese; prior audit warnings on this point appear to be cross-contaminated from other minerals.
- Adult Adequate Intake (AI) is 2.3 mg/day for men and 1.8 mg/day for women; most adults meet or exceed this through diet alone, meaning supplementation may provide no incremental benefit for replete individuals.
- Combined-supplement OA trials delivering 30–40 mg/day of elemental manganese substantially exceed the NIH UL of 11 mg/day; these trial doses must not be extrapolated to standalone manganese supplementation for joint pain.