Diet:

Focus on a calorie-deficit diet by consuming fewer calories than you burn. This will help shed excess fat around your midsection.
Eat more protein-rich foods like lean meats, eggs, legumes, and low-fat dairy to promote feelings of fullness and preserve muscle mass.
Increase your fiber intake from fruits, vegetables, and whole grains to improve digestion and prevent bloating.
Reduce your intake of processed, high-sodium, and sugary foods that can cause water retention and belly bloat.

Exercise:

Incorporate cardiovascular exercises like running, cycling, or swimming to burn overall body fat.
Perform abdominal exercises such as crunches, planks, and leg raises to strengthen and tone your core muscles.
Try high-intensity interval training (HIIT) that combines bursts of intense activity with periods of rest to boost metabolism.

Lifestyle Changes:

Stay hydrated by drinking plenty of water, which can aid digestion and reduce water retention.
Manage stress through techniques like meditation, yoga, or deep breathing exercises, as stress can lead to cortisol spikes and increased belly fat.
Get enough sleep, as lack of sleep can disrupt hormones that regulate appetite and metabolism.
Practice good posture and engage your core muscles throughout the day to strengthen your abdominal muscles.

Remember, spot reduction of belly fat is not possible. A combination of a calorie-deficit diet, total-body exercises, and a healthy lifestyle will help you lose overall body fat, including around your midsection, revealing a flatter tummy over time. Consistency and patience are key for sustainable results.