Can black fungus, eggs, and walnut kernels lower blood sugar levels?

Feb 27, 2025 Source: Cainiu Health
Disease description:

Because my blood sugar is high, my family often feeds me wood ear fungus, eggs, and walnut kernels. I would like to ask, can wood ear fungus, eggs, and walnut kernels lower blood sugar levels?

Doctor's answer (1)
Dr. Liu Feng

Although both wood ear fungus and walnut kernels contain components beneficial for lowering blood sugar, the combination of wood ear fungus, egg, and walnut kernels cannot directly reduce blood glucose levels.

When consumed in moderation, these three foods—wood ear fungus, egg, and walnut kernels—may have certain auxiliary effects in controlling blood sugar, but they do not directly lower blood glucose. Wood ear fungus contains polysaccharides that can help reduce blood sugar levels and regulate glucose metabolism. Additionally, it is rich in dietary fiber, which promotes intestinal motility and helps relieve constipation. The protein in eggs provides a feeling of fullness, potentially reducing intake of high-sugar foods. The primary benefits of eggs include enhancing brain function, boosting immune function, and providing nutritional supplementation, but they do not have a direct effect on lowering blood sugar. Walnut kernels contain unsaturated fatty acids and fiber that may improve insulin sensitivity; however, walnut kernels alone are not sufficient to directly lower blood glucose levels.

Therefore, although wood ear fungus and walnut kernels individually contain components beneficial for lowering blood sugar, their combination with egg does not have a direct blood glucose-lowering effect.