So I thought it wise to get a second opinion on the enzyme claims.
The most important quotes I found from Dr. Barretts research on enzymes are stated below:
"The enzyme content of food has no relevance to health. The U.S. Department of Agriculture, which collects voluminous data on our food and nutrient intake, does not measure "food enzyme consumption" because it has no nutrition or health significance"
"The digestion of food is not an energy drain on the body."
“Enzymes in food cannot remedy a lack of cellular enzymes. All plant and animal products contain enzymes. They are responsible for both growth and post-harvest deterioration (wilting, discoloration, rancidity, etc.). They have nothing to do with the digestive process after food is consumed.”
“Raw food contains no enzymes needed for digestion. All the enzymes needed for human digestion are made in the body.”
"'Food enzymes' are not needed by the body, either for digestion or for any other purpose."
"Food supplements are not necessary for human nutrition."
Based on Dr. Barrett's extensive knowledge resulting from valid and reliable research, I would be more likely to believe his side of the story.