The time it takes for fiber to work can vary depending on several factors, including the type of fiber, individual digestive health, and dietary habits. Generally, here are some guidelines:
1. **Soluble Fiber**: Found in foods like oats, beans, apples, and citrus fruits, soluble fiber can take anywhere from 24 hours to a few days to influence digestive function, such as improving cholesterol levels or controlling blood sugar.
2. **Insoluble