While raw vegetables generally retain more fiber, some cooked vegetables can still be excellent sources of fiber, and cooking can sometimes make nutrients more bioavailable. A balanced approach is best.
The idea that raw vegetables are always superior for fiber intake isn't entirely accurate. While it's true that cooking can sometimes reduce the fiber content of vegetables, the impact is often minimal. More importantly, cooking can break down cell walls, making some nutrients easier for your body to absorb. For example, cooking carrots increases the amount of beta-carotene your body can utilize.
The type of fiber also matters. Some vegetables contain insoluble fiber, which adds bulk to your stool and helps with digestion. Others contain soluble fiber, which can help lower cholesterol and regulate blood sugar levels. Both types of fiber are beneficial, and you can obtain them from both raw and cooked vegetables.
Ultimately, a balanced diet that includes a variety of both raw and cooked vegetables is the best approach. Consider the specific vegetable and your individual needs when deciding whether to eat it raw or cooked. Some vegetables, like spinach, are more nutritious when cooked, while others, like bell peppers, retain more vitamin C when eaten raw.
Experiment with different cooking methods to minimize fiber loss. Steaming or lightly sautéing vegetables can help preserve more nutrients and fiber compared to boiling them for extended periods.