Excess insulin in the blood can induce hypoglycemia, weight gain, and insulin resistance. High insulin levels signal the body to store energy, leading to weight gain. Additionally, excess insulin can cause cells to become resistant to its effects, making it harder for glucose to enter cells and causing further increases in blood sugar levels. This can contribute to the development of insulin resistance and type 2 diabetes. Indirectly, excess insulin can also stimulate hunger and cravings for sugary foods, which can further contribute to weight gain and difficulty in managing blood sugar levels. Maintaining balanced insulin levels through lifestyle changes such as regular exercise, a healthy diet, and weight management can help prevent these negative effects.