Treating Low Blood Sugar (2024)

You are at risk of having a low blood sugar reaction if you:

  • Skip or delay a meal or snack
  • Take too much insulin or eat too few carbohydrates
  • Exercise
  • Drink alcohol, especially without eating carbohydrates

Check your blood sugar if you have any of these symptoms:

  • Weakness and/or fatigue
  • Headache
  • Sweating
  • Anxiety
  • Dizziness
  • Shaking
  • Increased heartbeat

If your blood sugar is less than 70 milligrams per deciliter (mg/dl):

  • Eat 15 to 30 grams of carbohydrate (sample foods listed below)
  • Wait 15 minutes and then recheck your blood sugar
  • If your blood sugar is still less than 100 mg/dl, take another 15 grams of carbohydrate and retest your blood sugar in another 15 minutes. Repeat if necessary.

Important: If you have frequent low blood sugars speak to your doctor. You may need changes in your medication and/or meal plan.

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Quick Carbohydrate Guide for Treating Low Blood Sugars

If your blood sugar is less than 70 mg/dl, you need 15 to 30 grams of a quickly absorbed carbohydrate, like the ones listed below. Each of the following servings provides 15 grams of carbohydrate.

Candies and Other Sweets

  • 5 small gum drops
  • 12 gummy bears
  • 6 large jelly beans
  • 5 Life Savers
  • 15 Skittles
  • 1 Tablespoon honey, jam or jelly
  • 1 Tablespoon sugar in water
  • 4 Starburst

Beverages

  • 1/2 cup apple juice
  • 1/2 cup orange or grapefruit juice
  • 1/2 cup pineapple juice
  • 1/2 cup regular soda (not diet)
  • 1/3 cup grape juice
  • 1/3 cup cranberry juice
  • 1/3 cup prune juice
  • 1 cup fat free milk

Fruits

  • 1/2 banana
  • 1 small apple
  • 1 small orange
  • 1/2 cup applesauce
  • 2 tablespoons of raisins
  • 15 grapes

Other

  • 3 to 4 glucose tablets
  • 1 tube glucose gel

Note: The foods listed above are easily absorbed and will raise blood sugar levels quickly. Foods that contain protein or fat – such as chocolate, candy bars, ice cream, cookies, crackers and bread – don't raise blood sugar quickly enough.

UCSF Health medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.

Treating Low Blood Sugar (2024)

FAQs

What is the best thing to eat when your blood sugar is low? ›

If you're still below 70 mg/dL, have another 15 grams of carbs, wait 15 minutes, and check your levels again. Among the foods you can try for a quick blood sugar boost are: a piece of fruit, like a banana, apple, or orange. 2 tablespoons of raisins.

How can I treat low blood sugar at home? ›

If you have hypoglycemia symptoms, do the following: Eat or drink 15 to 20 grams of fast-acting carbohydrates. These are sugary foods or drinks without protein or fat that are easily converted to sugar in the body. Try glucose tablets or gel, fruit juice, regular (not diet) soda, honey, or sugary candy.

How do you feel when your sugar is low? ›

Symptoms such as weakness, feeling tired, shaking, sweating, headache, hunger, nervousness and irritability are signs that a persons blood sugar is getting dangerously low. A person showing any of these symptoms should check their blood sugar.

What is the best snack for low blood sugar? ›

Blood sugar can usually be treated with the 15-15 rule, which involves consuming 15 grams of rapidly acting carbohydrates and then waiting 15 minutes before checking your blood sugar. Fruit juice, honey, hard candies, and glucose tablets are recommended to treat hypoglycemia between 55-69 mg/dL.

What will raise blood sugar immediately? ›

Glucose or sucrose is the best choice. Liquids will raise your blood sugar faster than solid foods. Many adults use 15 grams of carbohydrate to raise blood sugar. Children usually need less than 15 grams of carbohydrate.

What not to eat with hypoglycemia? ›

Foods that are not suitable for people with hypoglycemia to eat because they can cause your blood sugar levels to fluctuate significantly include:
  • White bread, white rice, and pasta.
  • Trans fats.
  • Sugar-sweetened drinks.
  • Fruit-flavored yogurt.
  • Sweetened breakfast cereals.
  • Honey, agave nectar, and maple syrup.
  • Dried fruit.
Dec 27, 2023

What is the lowest blood sugar level before coma? ›

Coma can occur at glucose levels in the range of 2.3–2.7 mmol/l (41–49 mg/dl) (9) as well as at lower glucose levels. All of these responses are typically corrected after the plasma glucose concentration is raised.

Is peanut butter good for low blood sugar? ›

A: Consuming peanuts and peanut butter can be a great way to balance blood sugar and provide fullness. Since peanuts are a fat, they have higher calories per gram than carbohydrates and proteins. This means you don't need as much to feel full.

Is it safe to sleep with low blood sugar? ›

Studies suggest that almost half of all episodes of low blood glucose — and more than half of all severe episodes — occur at night during sleep. Nocturnal hypoglycemia can be potentially dangerous.

Why would blood sugar drop if not diabetic? ›

Severe liver illnesses such as severe hepatitis or cirrhosis, severe infection, kidney disease, and advanced heart disease can cause hypoglycemia. Kidney disorders also can keep your body from properly excreting medications. This can affect glucose levels due to a buildup of medications that lower blood sugar levels.

Will my body wake me up if my blood sugar is low? ›

An individual may frequently wake up in the middle of the night as a result of nighttime hypoglycemia. In other instances, though, people may know if they experienced hypoglycemia during their sleep if they notice the following symptoms: Waking up with a headache. Waking up in a sweat.

Why do diabetics wake up at 3am? ›

The cause of the dawn phenomenon isn't clear. Some researchers believe the overnight release of certain hormones that happens naturally increases insulin resistance. That causes blood sugar to rise. The hormones are called counter-regulatory hormones because they have an effect that opposes the effect of insulin.

How to treat a low blood sugar level at home? ›

These items have about 15 grams of carbs:
  1. 4 ounces (½ cup) of juice or regular soda.
  2. 1 tablespoon of sugar, honey, or syrup.
  3. Hard candies, jellybeans, or gumdrops (see food label for how much to eat).
  4. 3-4 glucose tablets (follow instructions).
  5. 1 dose of glucose gel (usually 1 tube; follow instructions).

What should I eat if my sugar is low at night? ›

Be prepared, have rapid-acting carbohydrates like glucose tablets, juice or soda at your bedside. If you find yourself experiencing frequent nighttime hypoglycemia you may need to adjust your insulin doses.

How to control sugar level immediately? ›

The fastest way to lower blood sugar is to take fast-acting insulin medication. Exercise can also help to bring down blood sugar levels quickly. Diet and lifestyle changes can help manage overall blood sugar levels, but for immediate action, prescription medication or medical assistance may be necessary.

How to bring 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.

What foods stabilize blood sugar? ›

Eating protein — from meat and fish, tofu, nuts, eggs, and cheese — with carbs can slow that flow of glucose and help stabilize blood sugar. “Proteins hold back the sugars, slow them down, and then release them into the bloodstream slowly so that your blood sugar stays in a more normal range,” O'Meara says.

What are the 5 worst foods for blood sugar? ›

Foods to limit or avoid
  1. Refined grains. Refined grains like white bread, pasta, and rice are high in carbs but low in fiber, which can increase blood sugar levels more quickly than their whole grain counterparts. ...
  2. Sugar-sweetened beverages. ...
  3. Fried foods. ...
  4. Alcohol. ...
  5. Breakfast cereal. ...
  6. Candy. ...
  7. Processed meats. ...
  8. Fruit juice.

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