I have been vegan for 20 years… and I started lifting at 15, TWO YEARS AFTER I went vegan. The reason she likely “felt ill” and lost muscle mass when she ate a vegan diet (off and on for) 7 years is because she was not eating enough calories. Everyone can build muscle and feel healthier than ever as a vegan. I have worked with over 600 vegan athletes who are living proof!