Soy Isolate in Lessman Secure Meal

Just googled it and found some of the negatives you suggest. However, I went to WebMD and found this information which would seem to back Lessman’s use of it:

What Is Soy Protein Isolate?
Soy protein isolate is a protein that comes from soybeans. It’s cheaper than some protein options and easy to add to your diet.

You can use soy protein to help you lose weight, boost energy, or build muscle. Soy protein isolate may also manage your hormone balance and lower your risk of breast cancer, heart disease, and osteoporosis.