
The King of Protein, Whey, Finally Defeated by a Newcomer?
Physionic
Jan 1, 2026
Mindsip insights from this episode:
Choose whey protein for optimal muscle growth
For most people, whey protein is still the best choice as the extra leucine from more expensive BLG likely provides no real-world value for muscle growth.
Increase leucine intake to boost muscle protein synthesis in older adults
Older people are less sensitive to leucine and require a higher dose to achieve the same muscle protein synthesis response as younger people.
Consider BLG protein for optimal health in older adults
The speaker hypothesizes that BLG protein may be superior to whey specifically for people over 60, who could benefit from its higher leucine content.
Understand leucine threshold to optimize muscle protein synthesis
Muscle protein synthesis has a 'leucine threshold,' meaning you need a minimum amount to stimulate it, but consuming more beyond a certain ceiling provides no extra benefit.
Challenge whey protein with beta-lactoglobulin for superior benefits
A protein called beta-lactoglobulin (BLG), which is an even purer form extracted from whey, is challenging whey protein's dominance.
Prioritize whey over BLG for optimal muscle growth
Despite BLG delivering more of the amino acid leucine into the blood, studies show it does not lead to greater muscle growth or strength compared to whey in young individuals.
Increase whey protein to combat leucine resistance in seniors
Instead of switching to BLG, older adults looking to overcome leucine resistance could simply increase their whey protein consumption.
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