All Supplements
Selenium vs Manganese
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Selenium
Manganese
Typical Dosage
55–200 mcg daily
1.8–2.3 mg daily
Best Form
Selenomethionine
Manganese gluconate
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With meals to enhance absorption; consistent daily timing
With meals to enhance absorption
Selenium Benefits
✓Antioxidant protection through selenoprotein synthesis
✓Thyroid hormone metabolism and immune function
✓Reduced inflammation and oxidative stress
✓Male fertility and sperm motility support
✓Potential cognitive and cardiovascular health support
Manganese Benefits
✓Supports bone health and mineralisation
✓Enhances antioxidant defence via MnSOD enzyme
✓Promotes wound healing and collagen formation
✓Aids carbohydrate and fat metabolism
✓Supports joint health and cartilage maintenance
Can You Take Both Together?
In most cases, Selenium and Manganese can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Selenium if your primary goal is: antioxidant protection through selenoprotein synthesis. Choose Manganese if your primary goal is: supports bone health and mineralisation. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.