Re: Protein, CHO & fats nutrition lecture

Jordan,

Great video and content as always. I have a question regarding sources of protein ingestion after establishing targeted daily intake.

In order to stimulate MPS we need a minimum of 20-25g of animal protein sources per meal and this would take into account that we are also ingesting ~3g of leucine in order to sufficiently meet the threshold and reap the benefit of maximal MPS. Assuming one eats 4 meals per day, this may represent 80-100g of protein ingested purely from animal protein sources only per day. As you stated in the video, we are also taking in trace amounts of protein from our CHO and fat sources, which may make up the rest of one’s targeted daily protein intake, taking into consideration caloric needs, performance and health goals etc…

Having said this, and understanding that the bioavailability of the trace protein sources from CHOs and fats is not as high as that of animal proteins, as a general principle can we deduce what proportion of one’s total daily protein intake should come from animal protein sources and other sources?

For example for someone intending to gain bodyweight, would it be better to get 50% of one’s daily protein intake from animal sources and the rest will come from CHOs and fats so as to allow for increased caloric intake, and in the case of someone who intends to lose bodyweight would it in turn be better to have more than 50% of one’s daily protein intake come from animal sources in order to take advantage of protein’s satiating effects, thus facilitating caloric restriction?

I don’t think you can deduce that and further, someone who is gaining weight likely is taking in more trace proteins and subsequently might have a lower percentage of dietary protein.

I just don’t think it’s a useful thing to know, calculate, use to make decisions.