10 Eating Mistakes That Can Make Diabetes Harder to Manage

Living with diabetes does not mean giving up the foods you enjoy. According to the US National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), you can still have favorite foods, though you may need smaller portions or to eat them less often. What matters most is what you eat, how much you eat, and when you eat.

Here are ten common mistakes that can make blood sugar harder to control, and what to do instead.

1. Skipping Meals or Eating at Irregular Times Long gaps between meals followed by a large meal can cause blood sugar to swing up and down. If you take insulin or certain diabetes tablets, skipping meals can also raise the risk of dangerously low blood sugar (hypoglycemia).

Instead: Aim for regular meals and planned snacks at consistent times, and talk to your healthcare team about timing your meals with your medication.

It is easy to eat more than you need without noticing, even with healthy foods. Large servings of starchy foods raise blood sugar levels the most.

Instead: Try the plate method recommended by the CDC and NIDDK. On a 9-inch plate, fill half with non-starchy vegetables such as greens, cabbage, broccoli, or carrots, one quarter with lean protein, and one quarter with carbohydrate foods such as grains, starchy vegetables, or fruit. Add a glass of water or another zero-calorie drink on the side.

Carbohydrates have the biggest effect on blood sugar, and they come from more than just bread and rice. Starchy vegetables, beans, fruit, milk, and yogurt all contain carbohydrates. If you do not know where your carbs come from, spikes can seem to happen “out of nowhere.”

Instead: Ask a registered dietitian or diabetes educator to explain carbohydrates in your usual meals. Carb counting helps some people, especially those on insulin, but not everyone needs it. The plate method may be enough for many.

Soda, sweet tea, flavored coffee, energy drinks, sports drinks, and even fruit juice can send blood sugar up quickly because the sugar is absorbed fast. NIDDK lists these among the drinks to limit.

Instead: Make water your main drink. Unsweetened tea or sparkling water can add variety. If you take a small amount of juice to treat a low blood sugar episode, that is a different matter and should follow your doctor’s advice.

5. Eating Too Many Refined Carbohydrates and Too Little Fiber

White bread, white rice, refined maize meal, pastries, and sugary cereals are digested quickly. High-fiber foods slow digestion and help prevent sharp rises.

Instead: Choose whole grains, beans, lentils, vegetables, and whole fruit more often. Add fiber gradually and drink enough water.

A plate of plain rice, bread, or ugali with little else digests faster than a balanced meal. Protein, healthy fats, and fiber all slow the rise in blood sugar.

Instead: Pair starches with vegetables and a protein source, such as fish, eggs, beans, or lean meat. Choose healthy fats from nuts, seeds, avocado, and olive oil.

7. Trusting “Diabetic” or “Sugar-Free” Labels

Products labeled “diabetic,” “sugar-free,” or “no added sugar” may still contain plenty of carbohydrates, fat, or calories. Some sugar alcohols can cause stomach upset.

Instead: Read the full nutrition label. Look at total carbohydrates, serving size, and added sugars, not just the claim on the front.

8. Eating Too Many Fried, Fatty, and Salty Foods

NIDDK advises people with diabetes to limit fried foods and foods high in saturated and trans fats, as well as foods high in salt. Diabetes raises the risk of heart disease and high blood pressure, so these matter too.

Instead: Bake, grill, steam, or boil rather than fry, and flavor food with herbs, spices, garlic, lemon, and vinegar instead of extra salt or stock cubes.

Alcohol can cause blood sugar to drop, sometimes hours later, particularly if you drink on an empty stomach or take insulin or certain tablets. Sweet mixers and some beers can also add sugar and calories.

Instead: If you choose to drink, ask your doctor if it is safe for you. Keep amounts small, never drink on an empty stomach, and avoid sugary mixers.

10. Following Extreme Diets or Miracle Cures

Cutting out all carbohydrates, crash dieting, or relying on herbal remedies and supplements that claim to “cure” diabetes can be dangerous, especially if you stop or reduce your medication. Very restrictive plans are also hard to maintain.

Instead: Choose a balanced, sustainable eating plan, and never change or stop your medication without your doctor’s advice. If you want to try a supplement or traditional remedy, tell your healthcare team first.

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