Eating whole lemons, peel and all, has become a viral trend on TikTok. These lemons, known for their high vitamin C content, support immune health, collagen production, and iron absorption. Although initially popularized by an Italian company's low-acidity lemons, regular lemons are being used to recreate the snack. Dietitian Prasad Das highlights the nutritional benefits of lemon peels, but advises caution due to potential pesticide residues and adverse reactions in sensitive individuals.