The participants were provided with plant-food-rich diets that aligned with the Dietary Guidelines for Americans. One diet contained 162 grams (5.7 ounces) per day of minimally processed lean pork, and the other diet provided the same amount of protein from lentils.

Homocysteine increased with the pork diet compared to the lentil diet.

Changes in total cholesterol, triglycerides, blood glucose, insulin, insulin sensitivity, serum BDNF, weight, lean mass, and physical function were not different between the groups.

The effects of healthy diets containing pork or lentils in older adults Original paper