4 Responses to “Response to CCF about Protein for Vegan Teenagers”

1. Rick Says:
   February 6th, 2009 at 2:45 am

   “To complicate matters a bit, it is thought that if someone relies
   only on plant protein, they should get more protein.” I do not recall
   hearing that before; I thought that was only the case for iron. What is
   the reasoning please? Is this applicable to all age groups?

2. Jack Norris RD Says:
   February 9th, 2009 at 5:37 pm

   The Dietitian’s Guide to Vegetarian Diets (2004) says, “In North America, protein derived from plant-based diets, consisting largely of whole grains, beans, and vegetables is about 85% digestible, whereas the protein from mixed diets based on refined grains and meat products, typical of most omnivores, is about 95% digestible.” (p. 69)

   They include a chart of various foods and their digestibility score. The difference in digestibility is due to the toughness of plant cell walls. Yes, it applies to all age groups.

3. Marybeth Pearson Says:
   October 24th, 2011 at 3:00 pm

   Hello Jack. Please read The China Study, by T. Campbell for my reason why the “Guide” completely misses the mark. Also, please keep in mind that the meat and dairy industry is one of the biggest industries in the US. They have a strong union and lobby Washington on a constant basis. They pay people to promote their products all the time. Gabriel Cousens’ book; Conscious Eating, is outstanding on the subject of protein. All his books will fill in the gaps for you. Sincerely, Mb

4. Jack Norris RD Says:
   October 24th, 2011 at 5:16 pm

   Marybeth,

   I’m well aware of The China Study and read Gabriel Cousens’ Conscious Eating back in the mid-1990s. In the time since this post and my comment was written, I have reveiwed all the studies looking at protein balance and vegan diets here: veganhealth.org/articles/protein.

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