Yes – except for any oil-type supplements. So, that means you need to avoid fish and omega oils, vitamin E, and vitamin D in its oil form. (You may take vitamin D in a tablet.)The thought here is that we want your body to get the bulk of its fats and oils directly from the stored nutrition in the visceral fat cells. The body thrives when it feeds off of fat, and by correctly following the Skinny Up! Protocol, we are asking the body to consume large amounts of fat -- directly from the fat stores in the body.Skinny Up! always recommends that you speak with your primary care physician regarding the Skinny Up! Protocol, your supplements and medications, and that you follow their advice.