Oat-zempic weight loss trend involves a drink made with oats, water, lemon juice and cinnamon. While oatmeal has benefits like promoting fullness and regulating blood sugar, experts warn against considering it a replacement for Ozempic, a prescription drug for weight loss. Ozempic works through a different mechanism and requires medical supervision, whereas the oat-zempic trend might lead to an unbalanced diet and deficiencies. A balanced diet with whole grains is recommended for sustainable weight loss.