You can eat it, but it is best not to eat too much. Normal people only consume 50 grams of glutinous rice per meal. Sinusitis patients should eat more whole grains, beans and nuts in their diet to absorb vitamin B, which helps maintain normal immune function; they should also eat more fresh fruits and vegetables to absorb enough vitamin C. Citrus fruits (not their juice), grapes and blackberries are particularly beneficial because they also contain bioflavonoids, which, along with vitamin C, keep capillaries healthy. Bioflavonoids also have anti-inflammatory properties. Vitamin E (found in nuts, sunflower seeds, and seed oils) also promotes immune function.