It's more likely that my body is just overly sensitive to foods (which is very common). I eat clean now but still not feeling like I did back then. Maybe 80%.

It's more likely that my body is just overly sensitive to foods (which is very common). I eat clean now but still not feeling like I did back then. Maybe 80%. Diet and how you feel is highly variable and highly individual dependent. So the shake is excellent for creating a baseline since it is about as plain as you can get food to be.