A Max Lugavere podcast on protein, creatine and essential amino acids

A deep dive and clear answers on dosage, timing and strength training.

Among other interesting things, what comes up is the term anabolic resistance. Anabolic resistence is connected to age, and older people cannot absorb and utilize properly as younger adults do. 

Aging has been associated with a reduced muscle protein synthetic response to protein intake, termed “anabolic resistance.” Physical activity performed before protein intake increases the use of protein-derived amino acids for postprandial muscle protein accretion in senescent muscle. Thus, the level of habitual physical activity may be fundamental to maintain the anabolic responsiveness to protein intake with aging.
"Anabolic Resistance of Muscle Protein Synthesis with Aging"

Burd, Nicholas A.; Gorissen, Stefan H.; van Loon, Luc J.C.

https://journals.lww.com/acsm-essr/fulltext/2013/07000/anabolic_resistance_of_muscle_protein_synthesis.6.aspx

PS The person who is interviewed, Angelo Keely, is the co-founder and CEO of Kion, a supplement company focused on science-backed products for performance, recovery, and longevity.