To get a flat tummy fast naturally, here are effective tips combining exercise, diet, and lifestyle adjustments:

1. Do Core Exercises: Focus on core-strengthening movements like planks, plank-walk downs, bicycle crunches, toe reaches, leg raises, roll-ups, and Russian twists. These exercises target and tone your abdominal muscles for a flatter stomach.
2. Incorporate Cardiovascular Exercise: Cardio helps burn overall body fat, including belly fat.
3. Drink Plenty of Water: Aim for 8-10 glasses a day. Staying hydrated helps reduce bloating and supports metabolism.
4. Eat Fiber-Rich Foods: Fiber promotes fullness, digestion, and can help reduce belly fat.
5. Limit Salt and Alcohol: Excess salt causes water retention and bloating. Alcohol adds unnecessary calories and promotes belly fat.
6. Manage Stress: High cortisol from stress can cause abdominal weight gain. Use relaxation techniques like meditation, yoga, or deep breathing.
7. Use Natural Fat-Burning Remedies: Consider drinks like green tea, ginger tea, lemon water, and spices such as cayenne pepper which can increase metabolism and fat burning.
8. Get Enough Sleep: Poor sleep increases stress hormones that promote belly fat.
9. Avoid Sedentary Lifestyle: Move regularly throughout the day.
10. Treat Medical Conditions: Address issues like diabetes or hypothyroidism that affect metabolism.

For quick results, consistently combine these exercises and dietary changes with healthy lifestyle habits. Core exercises like the plank and bicycle crunches are especially effective for toning the midsection. Drinking lemon water and green tea can help speed fat burning naturally. Remember, sustainable results come from a balanced approach rather than quick fixes or extreme dieting.