Yes, your diet can affect how a fragrance smells on you. Foods like garlic, onions, and spicy dishes release compounds through your sweat, which can alter a perfume’s scent. On the other hand, a diet high in healthy fats (like avocados and nuts) can help fragrance last longer, while a low-fat diet may cause it to fade quickly. Hydration also plays a role—dehydrated skin won’t hold scent as well. Even red meat consumption can impact body odor, potentially changing how a fragrance develops. Your natural skin chemistry, influenced by what you eat, ultimately determines how a perfume smells on you.