Why do soluble fibers tend to blunt postprandial blood glucose spikes compared with low-fiber foods?

Because soluble fibers neutralize carbohydrates chemically in the mouth, preventing their digestion and absorption in the intestine.

Because soluble fibers create a viscous gel in the small intestine that slows the rate of nutrient diffusion and absorption, reducing the speed at which glucose enters the bloodstream.

Because soluble fibers are converted into insulin by gut bacteria, which then lowers blood glucose rapidly after meals.

Because soluble fibers are absorbed in the stomach and directly carry glucose out of circulation before it can raise blood sugar.