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What to drink when sugar levels are low?

6 min read

Approximately 1 in 4 people with diabetes experience hypoglycemia, or low blood sugar. Knowing exactly what to drink when sugar levels are low is crucial for treating it quickly and effectively, as delaying can have serious health consequences and requires the fastest-acting remedy.

Quick Summary

Treat low blood sugar by immediately consuming 15–20 grams of fast-acting carbohydrates from liquids like fruit juice or regular soda. Check levels after 15 minutes and repeat if needed until your blood sugar returns to a safe range.

Key Points

  • Act Fast: Use the 15-15 rule with fast-acting liquids like juice or regular soda to treat low blood sugar immediately.

  • Choose Simple Carbs: Liquids like fruit juice and non-diet soda are effective because they contain simple sugars absorbed quickly into the bloodstream.

  • Avoid Diet Drinks: Diet sodas contain no sugar and will not correct a low blood sugar level; they should be avoided during a hypoglycemic event.

  • Skip Fat and Fiber: Beverages high in fat or fiber, such as milkshakes or smoothies, slow down sugar absorption, delaying recovery.

  • Stay Prepared: Always carry a quick source of carbohydrates, such as glucose tablets, glucose gel, or juice boxes, especially if you have diabetes.

  • Check Often: For those with frequent lows or hypoglycemia unawareness, regular blood sugar monitoring or using a continuous glucose monitor is vital.

In This Article

Understanding Hypoglycemia

Hypoglycemia is the medical term for low blood sugar, which occurs when glucose levels in the blood drop below the range that's healthy for you. For many with diabetes, this is defined as a blood sugar level below 70 mg/dL (3.9 mmol/L). In people without diabetes, a lower threshold, often around 55 mg/dL (3.1 mmol/L), is used. The body's cells rely on glucose for energy, so when levels are too low, it can lead to a range of symptoms from mild to severe. Common signs include shakiness, dizziness, sweating, a rapid heartbeat, and confusion. If left untreated, severe hypoglycemia can lead to seizures, loss of consciousness, and is potentially life-threatening. The key to managing this condition is acting fast with a simple, quick-absorbing source of sugar.

The 15-15 Rule for Drinking

The American Diabetes Association recommends a specific protocol, known as the "15-15 rule," for treating mild to moderate hypoglycemia. This rule is particularly effective with fast-absorbing liquids:

  • Consume 15 grams of fast-acting carbs: This includes sugary drinks like fruit juice or regular soda. The liquid form allows for quick digestion and absorption into the bloodstream, raising blood glucose levels rapidly.
  • Wait 15 minutes: Set a timer and allow the sugar to take effect. It's important not to rush and consume more sugar too soon, which can lead to a rebound high blood sugar.
  • Recheck your blood sugar: After 15 minutes, test your blood sugar level again. If it is still below 70 mg/dL, repeat the process by drinking another 15 grams of carbs.
  • Maintain stable levels: Once your blood sugar has returned to a normal range (above 70 mg/dL), you should eat a more substantial snack or meal containing both carbohydrates and protein to prevent another drop. This could be a sandwich or some crackers and cheese.

Best Liquids for a Quick Fix

When you need to raise your blood sugar quickly, the best drinks are those containing simple carbohydrates with little to no fat or fiber, as these can slow down sugar absorption. The following are some of the most effective options:

  • Fruit Juice: A half-cup (4 ounces) of apple, orange, or grape juice provides about 15 grams of fast-acting carbs. It's a natural and easily accessible option. Those with kidney disease, however, should avoid orange juice due to its high potassium content.
  • Regular Soda: A half-can (4–6 ounces) of a regular, non-diet soda also offers around 15 grams of carbohydrates. Always ensure it is not a diet version, which contains artificial sweeteners instead of sugar.
  • Honey or Maple Syrup: A single tablespoon of honey or maple syrup contains approximately 15 grams of carbohydrates. For easier consumption, it can be mixed with a small amount of water.
  • Glucose Gel: Available at most pharmacies, one tube of glucose gel is typically designed to provide 15 grams of carbs. It's a highly convenient and concentrated option for treating hypoglycemia on the go.

What to Avoid When Blood Sugar is Low

While some drinks might seem like a quick fix, they can actually hinder recovery due to their composition. Avoid the following during a hypoglycemic episode:

  • Diet Soda: These contain no sugar, so they will not raise your blood glucose level. Consuming them during a hypoglycemic episode is ineffective and wastes valuable time.
  • High-Fat Beverages: Drinks like milkshakes or sweetened coffee with cream are not ideal because fat slows down the absorption of sugar. This delays the time it takes for your blood sugar to rise and for you to feel better.
  • Alcohol: Drinking alcohol can cause blood sugar to drop further, especially on an empty stomach. It can also impair your ability to recognize low blood sugar symptoms.
  • High-Fiber Juices/Smoothies: While fruits are generally healthy, those blended into high-fiber smoothies can slow down sugar absorption. For immediate treatment, a simple fruit juice is superior.

Comparison Table: Fast-Acting Drinks

Drink Portion Size (Approx. 15g Carbs) Time to Raise Blood Sugar Best For What to Check Potential Issue
Fruit Juice 4 oz (1/2 cup) Fast (liquid simple carbs) Immediate treatment Ensure it's not low-sugar Some juices high in potassium
Regular Soda 4–6 oz (1/2 can) Fast (liquid simple carbs) Immediate treatment Must be regular, not diet High sugar content for general diet
Glucose Gel/Tablets 1 tube / 3-4 tablets Very Fast (pure glucose) Immediate, on-the-go treatment Always check package for serving size Can be expensive
Honey/Syrup 1 tablespoon Fast (liquid simple carbs) Immediate treatment Can be sticky and less convenient Overconsumption is easy

Staying Prepared for a Hypoglycemic Event

Preparation is the best defense against low blood sugar. If you are prone to hypoglycemic episodes, especially if you have diabetes, it is wise to keep a quick source of carbohydrates on hand at all times. This can include a juice box in your bag, a roll of glucose tablets in your car, or honey packets in your desk at work. It is also highly recommended to wear a medical alert necklace or bracelet that identifies you as someone who has diabetes. This can provide crucial information to first responders in an emergency. For those with frequent episodes, a continuous glucose monitor (CGM) can provide real-time alerts if blood sugar levels are trending low, helping to prevent an event before it happens. Discussing your management plan with your healthcare team is essential to ensure you are taking all necessary preventative steps.

Conclusion: Timely Action is Key

When your sugar levels are low, immediate action with the right fluids is critical. Choosing a fast-acting liquid like fruit juice or regular soda ensures that glucose is absorbed quickly into the bloodstream to correct the drop. Understanding what to avoid—like diet sodas or high-fat drinks—is just as important. Following the 15-15 rule provides a structured and effective approach to managing a hypoglycemic episode safely. Always stay prepared by carrying a quick source of carbs, and if you experience severe symptoms or an episode you cannot manage, seek emergency medical help immediately. For more detailed guidance, consult reliable medical resources like the American Diabetes Association's information on managing low blood sugar.

How Liquids Raise Blood Sugar

Liquids containing simple carbohydrates, or simple sugars, are absorbed faster than complex carbohydrates or solids. When ingested, simple sugars travel through the stomach and small intestine into the bloodstream quickly. This triggers the pancreas to release insulin, which helps move the sugar from the blood into your cells for energy. In a low blood sugar scenario, the rapid absorption of simple sugars from liquids is exactly what is needed to restore glucose levels to a safe range. The lack of fiber, fat, and protein in these liquids further ensures that nothing will slow down this critical absorption process.

What to Do After Blood Sugar Stabilizes

Once your blood sugar is back in a safe range after using the 15-15 rule, you need to follow up with a snack or meal that contains more complex carbohydrates and protein. This is to prevent your glucose from dropping again. Examples include eating a handful of crackers with cheese, a piece of whole-grain toast with peanut butter, or having your next scheduled meal if it is due soon. This step is vital for sustained energy and maintaining stable blood sugar levels over a longer period.

Preventing Future Lows

While knowing how to treat low blood sugar is important, preventing episodes is even better. Consistent meal and snack timing, especially if you take insulin or other glucose-lowering medications, is key. Monitoring your blood sugar regularly is also crucial, particularly before and after exercise, as physical activity can cause a drop in glucose levels. For those with diabetes, working closely with a healthcare team to manage medication dosages and diet is the most effective preventative strategy.

The Role of Glucose Tablets and Gels

For those who need the fastest possible response, glucose tablets and gels are often the first choice. They are made of pure glucose, which is the body's primary source of energy, and are designed to be absorbed more rapidly than other sugars. Their pre-measured nature takes the guesswork out of treating hypoglycemia, making them a very reliable option, especially for individuals who experience frequent drops in blood sugar.

Recognizing Hypoglycemia Unawareness

Some individuals, particularly those with a long history of diabetes, may experience hypoglycemia unawareness, where they don't feel the early warning signs of low blood sugar. In this case, it is even more critical to rely on regular blood glucose monitoring or a CGM. Educating family and friends about the condition and how to administer a glucagon injection in severe emergencies is also a life-saving precaution.

The Final Word on Treatment

The most important aspect of treating low blood sugar is speed and accuracy. Using the right type of liquid—one with simple, fast-acting carbs—is a cornerstone of this process. By following the 15-15 rule and always being prepared, individuals can effectively manage hypoglycemic events and minimize the risk of serious health complications. This proactive approach ensures safety and promotes better long-term health.

Frequently Asked Questions

You should drink approximately 4 ounces (a half-cup) of fruit juice, which contains about 15 grams of fast-acting carbohydrates, to treat low blood sugar.

No, diet soda should not be consumed for low blood sugar. It contains artificial sweeteners, not real sugar, and will not raise your blood glucose levels.

If you don't have juice or soda, other fast-acting options include one tablespoon of honey or sugar mixed in water, or glucose tablets/gel.

Fat and fiber slow down the digestion and absorption of sugar. For a hypoglycemic event, you need the sugar to enter your bloodstream as quickly as possible, so high-fat or high-fiber drinks are not suitable.

Once your blood sugar is stable, have a snack or meal that contains more complex carbohydrates and protein, like crackers with cheese or a sandwich, to prevent another drop.

Alcohol can increase the risk of low blood sugar, especially on an empty stomach. It's best to limit or avoid alcoholic beverages if you are at risk for hypoglycemia.

Preventing future lows involves regular blood sugar monitoring, consistent eating schedules, and proper management of medication, often with guidance from your healthcare team.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.