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Manganese (Supplement)

Last updated on July 30, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  




What is Manganese for?

Manganese is a trace mineral like Iron and Chromium. It is important for lipid, amino acid, sugar and carbohydrate metabolism. Manganese is also involved in bone formation, immune response, thyroid function, and blood clotting. The recommended adequate intake (AI) of Manganese to ensure no deficiency for adults is 2.3 mg in men and 1.8 mg in women. 

Manganese usually appears in supplements as an amino acid chelate such as Manganese Bisglycinate Chelate and Manganese Glycinate Chelate. You should only take a Manganese supplement when you have a Manganese deficiency, which is very rare, or are unable to take sufficient Manganese from your diet. Symptoms of Manganese deficiency can include muscle sprains and strains.

How to use it?

Manganese supplements are available in oral dosage forms like tablets. When Manganese is combined with other micronutrients as a supplement, the usual adult dose is 1-4.5 mg daily. When it is a stand alone supplement, the usual adult dose is 5-20 mg daily. For specific dosages, refer to the product label.

What are the side effects of Manganese?

No side effects have been reported.

What are the other sources of Manganese?

Most people should obtain adequate amounts of Manganese from a healthy diet. Manganese is present in many foods including meat, poultry, fish, nuts, cereals, oysters, mussels, soybeans, leafy vegetables, tea and coffee.

Where to buy Manganese in Hong Kong?

In Hong Kong, Manganese supplements can be purchased without a prescription from any retail outlet. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health. 

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

For detailed information about the use of Manganese in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.