16/02/2026
5 tips for choosing a good selenium-enriched yeast:
✅ Light colour: Indicates purity and controlled production.
✅ Certificate of Analysis: Ensures batch-to-batch consistency and guaranteed product composition (like Selko Optimin Selenium).
✅ Multiple Se forms: Opt for a Se source with a combination of several organice Se forms e.g. selenomethionine & selenocysteine for better bioavailability.
✅ High SeMet content: Look for Se-enriched yeaste with over 98% organic selenium for optimal absorption.
✅ Strong transfer rate: Focus on the Se transfer rate, not just the total concentration, to estimate how well animals absorb it from the diet.
📊 View the full infographic with calculations here:
https://westside.co.za/wp-content/uploads/2024/02/Westside-Selenium-Infographic.pdf