6 Foods to Avoid with High Blood Sugar
There is no such thing as "six foods that cannot be eaten with high blood sugar." Foods that should generally be avoided with high blood sugar include refined sugar products, high-GI staple foods, fried foods, processed meats, and high-fructose fruits.

1. Refined Sugar Products
Such as candies, sweetened beverages, and cakes, these foods contain large amounts of added sugars like sucrose and glucose, which rapidly elevate blood sugar levels after consumption. For example, a can of cola contains about 35g of sugar, equivalent to 140 calories, and contains almost no other nutrients. Patients with high blood sugar may experience sharp increases and decreases in blood sugar levels after consumption, and long-term consumption may worsen insulin resistance and increase the risk of diabetes complications. It is recommended to substitute with sugar alternatives, although some of them may affect gut microbiota and should be chosen with caution.
2. High-GI Staple Foods
Such as white rice, white bread, and glutinous rice products. White rice has a GI value of about 73, while white bread has a GI value of about 70, both of which are considered high-GI foods that are quickly digested and absorbed, leading to rapid fluctuations in blood sugar levels. Taking white rice as an example, a bowl (about 150g) contains approximately 30g of carbohydrates, equivalent to directly consuming "sugar." It is recommended to substitute with low-GI staple foods such as oats (GI value 55), brown rice (GI value 56), and mixed bean rice, along with fiber-rich vegetables, which can slow the rise in blood sugar levels.
3. Fried Foods
Fried foods not only contain high calories (about 279 kcal per 100g fried chicken) but also contain trans fatty acids and oxidation products, which can worsen insulin resistance and affect blood sugar regulation. For example, one piece of fried dough stick (youtiao) contains about 15g of oil. Long-term consumption may lead to obesity and abnormal blood lipids, further exacerbating hyperglycemia. It is recommended to choose cooking methods such as steaming, boiling, and roasting, avoid frying, and reduce the intake of additional oils.
4. Processed Meats
Processed meats contain large amounts of salt and preservatives added during production. For example, 100g of sausage contains about 2000mg of sodium (equivalent to 5g of salt). A high-salt diet can affect vascular elasticity and increase the risk of vascular complications in diabetic patients. In addition, some processed meats contain hidden sugars (such as sweet-flavored sausages), which may indirectly raise blood sugar levels. It is recommended to substitute with fresh poultry, fish, shrimp, or soy products to ensure the intake of high-quality protein while reducing the burden.
5. High-Fructose Fruits
Although fruits are rich in vitamins and dietary fiber, fruits like lychee and longan have high fructose content (lychee fructose accounts for about 70%). Excessive intake can lead to fat conversion in the liver, affecting glucose and lipid metabolism. For example, eating 10 lychees at one time (about 200g) is equivalent to consuming about 30g of sugar. Patients with high blood sugar should choose low-fructose fruits such as apples (GI value 36), strawberries (GI value 41), and pomelos.
People with high blood sugar and diabetic patients should aim to choose low-sugar, low-salt, low-fat, and high-fiber foods in their diet and appropriately balance various nutrients. Through proper dietary control, patients with high blood sugar can better manage their condition and improve their quality of life.