To build six-pack abs, focus on a balanced diet and regular exercise. Eat foods rich in lean protein (eggs, chicken, fish, paneer, lentils), healthy fats (nuts, seeds, olive oil), and complex carbohydrates (whole grains, fruits, and vegetables), while limiting sugar, fried foods, and processed snacks. Staying well-hydrated and maintaining a calorie-controlled diet helps reduce body fat, which is important for visible abs. Along with diet, regular core exercises and strength training are essential. Some people may benefit from supplements like protein powder, multivitamins, vitamin D, or omega-3, but these should be taken only if needed and preferably after consulting a healthcare professional.