Refined, highly processed white all-purpose flour is frequently cited by nutritionists and dietitians as the unhealthiest choice for regular consumption because the rigorous milling process strips away the nutrient-dense bran and germ layers, removing essential dietary fiber, B-vitamins, and trace minerals. While commercial white flours are often artificially enriched with synthetic vitamins, their high glycemic index causes rapid spikes in blood sugar levels compared to whole-grain alternatives. Consistently consuming highly refined wheat flours without adequate fiber intake has been linked to metabolic strain, insulin resistance, and weight gain, making whole-wheat, sprouted, or alternative nutrient-dense flours healthier dietary options.