High Blood Sugar and Hunger (2024)

Hunger and cravings are a frustrating side-effect of high blood sugar levels. It can also be confusing: if there’s so much excess sugar in your bloodstream, why are your body and your brain craving more food?

Here, we’ll look at why high blood sugars often come with cravings and what you can do about it.

High Blood Sugar and Hunger (1)

Why do you crave food when your blood sugar is high?

Without enough insulin, your blood sugar rises above “normal” levels. Blood sugars above 140 mg/dL are considered high—also known as hyperglycemia.

The higher your blood sugar rises, the louder those cravings and hunger pangs might become. While you’d think your body and your brain ought to be satisfied by the excess sugar in your bloodstream, it’s not that simple.

Without enough insulin, your brain cannot make use of that sugar. Since the brain relies on a second-by-second delivery of sugar for fuel—and your brain doesn’t know you have diabetes—it’s going to cue cravings and hunger to encourage you to eat.

This can be a frustrating and vicious cycle for a person with diabetes because the more you eat, the higher your blood sugar will rise if you don’t have enough insulin or other medications to help you stay in your goal range.

This is also a perfect example of why it’s so important to check your blood sugar frequently throughout the day: you might not know your hunger cravings are caused by high blood sugars if you don’t know your blood sugar is high.

Instead of instantly giving in to those hunger cravings, this is where you, the person with diabetes, must pause for a moment and think about whether you really need more food or whether you need to focus on getting your blood sugar down to your target range.

First, find solutions to reduce and prevent high blood sugar levels.

If you’re experiencing frequent high blood sugars (and the cravings that come with them), it’s a clear sign that your body needs more support.

Talk to your doctor about these potential adjustments to your diabetes management routine to help you achieve your blood sugar goals:

Making lifestyle changes around food/beverages and physical activity levels

Adjusting the dose(s) of your current insulin regimen

Adjusting the dose(s) of your current non-insulin diabetes medications

Starting (or changing to) a new non-insulin diabetes medication

Starting insulin therapy

While starting a new medication or insulin can be daunting, the first and most important goal is to bring your blood sugar levels down to a safer level. Long-term high blood sugars can lead to the development of complications throughout your body. The most important step you can take to prevent those complications is through managing safe and healthy blood sugar levels.

What should you eat when your blood sugar is high?

If you are going to eat a snack or meal when your blood sugar is high, you’ll want to focus on whole food low-carb choices—and plenty of water.

Yes, water! Water will help keep you hydrated while you work to lower your blood sugar. Dehydration can cause the sugar in your blood to become concentrated, so drinking plenty of water—especially when you’re already high—is important!

Choosing low-carb foods can be helpful because they won’t add more “fuel to the fire” and cause your blood sugar to rise significantly higher.

While insulin is necessary to help the body use any food we eat for fuel, foods with high carbohydrates (including starches, sugars, grains, fruits, etc.) raise blood sugar levels significantly more than low-carb choices.

Lower-carb choices include:

Non-starchy vegetables: salad greens, broccoli, cauliflower, carrots, green pepper, green beans, etc.

Protein and fat sources: cheese, lean protein (sliced ham, chicken, turkey), cottage cheese, nuts, nut butter, etc.

Low-glycemic fruits: raspberries, strawberries, blueberries

Examples of low-carb snacks:

Celery and hummus

Carrots and peanuts

Cottage cheese and cashews

Ham slices in a lettuce wrap with mustard

Cauliflower sauteed in hot wing sauce

Broccoli dipped in ranch salad dressing

Do keep in mind that your body may still need support from an increase in your current medication dose(s) or the addition of a new medication in order to bring your blood sugars down to your goal range. Talk to your doctor about making these adjustments while also working to make healthy choices around foods.

High Blood Sugar and Hunger (2024)

FAQs

Does high blood sugar make you feel hungry? ›

Without enough insulin, glucose builds up in your blood, causing hyperglycemia (high blood sugar). Glucose (sugar) is the main form of energy your body uses from the food you eat. Without enough insulin, your body can't use glucose for energy. This lack of energy usage causes an increase in hunger.

How do I stop hunger when diabetic? ›

Managing Hunger With Diabetes
  1. Eat breakfast high in protein. ...
  2. Check your blood sugar. ...
  3. Eat high-fiber, low-carbohydrate foods.
  4. Drink plenty of water. ...
  5. Eat without distractions, such as the TV.
  6. Keep food interesting with a variety of tastes, herbs and spices. ...
  7. Exercise through a craving.
Nov 29, 2023

How do you feel when your blood sugar is too high? ›

increased thirst and a dry mouth. needing to pee frequently. tiredness. blurred vision.

Why has my appetite suddenly increased so much? ›

Causes of an increased appetite include diabetes, hyperthyroidism, depression, post-COVID-19 syndrome, insomnia, and quitting smoking. A diagnosis involves a history, exam, blood tests, and possibly imaging and other tests. Sometimes, an increased appetite does not indicate a problem.

What are 5 signs your blood sugar is too low? ›

If blood sugar levels become too low, hypoglycemia signs and symptoms can include:
  • Looking pale.
  • Shakiness.
  • Sweating.
  • Headache.
  • Hunger or nausea.
  • An irregular or fast heartbeat.
  • Fatigue.
  • Irritability or anxiety.
Nov 18, 2023

How do I bring my blood sugar down quickly? ›

The quickest way to lower your blood sugar is to take fast-acting insulin. Exercising is another fast, effective way. However, in severe cases, you should go to the hospital. High blood sugar levels are known as hyperglycemia or high blood glucose.

Should I skip a meal if my blood sugar is high? ›

Skipping meals and lack of meal structure can throw off the balance between food intake and medication and this can result in poorly controlled blood glucose,” she said. “Eating at regular intervals also ensures that carbohydrates are spaced evenly throughout the day, which translates to better blood glucose control.”

Why am I always hungry even though I eat a lot? ›

You may feel constantly hungry for several reasons, such as experiencing long-term stress, burning more calories than you consume, taking certain medications, or having an underlying health condition. Speak with a healthcare professional if you don't know the cause of your constant hunger.

Will starving lower blood sugar? ›

Not eating may give you a headache. And if you fast for more than a day or so, your body may not get enough of the nutrients it needs without supplements. But the biggest danger of fasting if you have diabetes is that your blood sugar levels could go dangerously low (this is called hypoglycemia).

Can drinking water lower blood sugar? ›

Drinking water won't lower your blood sugar levels, but it can help you stay healthy by preventing dehydration. No single food or drink can directly reduce the amount of sugar in your blood. But different foods have different effects on your blood sugar, creating bigger or smaller rises for longer or shorter periods.

What are 5 signs of a diabetic emergency? ›

What are the signs and symptoms of a diabetic emergency?
  • hunger.
  • clammy skin.
  • profuse sweating.
  • drowsiness or confusion.
  • weakness or feeling faint.
  • sudden loss of responsiveness.

Why am I suddenly ravenously hungry? ›

Causes of a sudden increase in appetite can range from blood sugar issues and medication side effects to having certain health conditions. If your sudden increase in appetite is accompanied by other new symptoms, reach out to your healthcare provider.

Why do diabetics feel hungry all the time? ›

Diabetic hyperphagia , sometimes called polyphagia , is a condition common in people with diabetes who are always hungry despite eating plenty of food.

What hormone increases hunger? ›

Often known as the “hunger hormone,” ghrelin has numerous functions in addition to telling your brain you're hungry. For example, ghrelin: Increases food intake and helps your body store fat. Helps trigger your pituitary gland to release growth hormones.

Why does sugar increase appetite? ›

Foods with a higher GI, such as drinks sweetened with sugar, are rapidly digested and absorbed and provoke a rapid increase in blood glucose, a fact that exacerbates hunger and favors hyperphagia, since these foods are unable to stimulate the mechanisms of satiety [12].

What are the symptoms of too much sugar? ›

What does high sugar feel like? Excessive blood sugar levels can cause symptoms including headaches, weariness, blurred vision, increased thirst, and frequent urination. Severe instances may result in symptoms such as nausea, vomiting, and disorientation, which may suggest a medical emergency.

What are the symptoms of high blood sugar in the morning? ›

Depending on how elevated your blood sugar is, you may have the following symptoms when you wake up:
  • Increased thirst (polydipsia).
  • Increased hunger.
  • Frequent urination (peeing).
  • Headache.
  • Irritability.
  • Blurred vision.

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