24 Foods That Seem Healthy But Are Actually Making You Feel Worse
18. Store-Bought Protein Shakes

Not all protein shakes are created equal. Many ready-to-drink shakes are high in artificial sweeteners, low in fiber, and packed with processed ingredients that can spike and crash your blood sugar. These shakes might satisfy you temporarily but can leave you feeling sluggish shortly after. When possible, make your own smoothies with real food—combine protein powder with leafy greens, berries, a small banana, and a spoonful of nut butter for a cleaner, more energizing blend.