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What is best to eat when you have low sugar?

4 min read

According to the American Diabetes Association, a blood sugar level below 70 mg/dL is considered low and requires immediate attention. Knowing what to eat and when is crucial for managing hypoglycemia and preventing severe complications.

Quick Summary

Immediate treatment for low blood sugar involves consuming fast-acting carbohydrates to raise glucose levels, followed by a balanced snack to stabilize them. Different foods work at varying speeds, so it is important to select the right ones for rapid recovery and sustained energy.

Key Points

  • Immediate action: For mild to moderate low blood sugar, consume 15 grams of fast-acting carbs like fruit juice, glucose tablets, or hard candy.

  • The 15-15 rule: After consuming 15 grams of fast-acting carbs, wait 15 minutes and recheck your blood sugar; repeat if necessary.

  • Sustained recovery: Follow up your fast-acting carb dose with a balanced snack containing complex carbs, protein, and fat to prevent another blood sugar drop.

  • Foods to avoid initially: Steer clear of high-fat foods like chocolate or ice cream during a low blood sugar event, as fat delays sugar absorption.

  • Prevention is key: Maintain stable blood sugar by eating small, balanced meals with complex carbohydrates, lean protein, and healthy fats throughout the day.

In This Article

Understanding Hypoglycemia and the 15-15 Rule

When your blood sugar (glucose) drops below a healthy range, your body's cells are deprived of their primary energy source, a condition known as hypoglycemia. This can cause symptoms such as shakiness, sweating, dizziness, and confusion. For individuals with diabetes, this can be especially dangerous and requires a specific course of action, often called the "15-15 rule".

The 15-15 rule is a straightforward protocol for treating mild to moderate low blood sugar episodes:

  • Consume 15 grams of fast-acting carbohydrates.
  • Wait 15 minutes.
  • Check your blood sugar again. If it is still below 70 mg/dL (or your target range), consume another 15 grams of fast-acting carbohydrates and repeat the process.
  • Once your blood sugar is back in a safe range, eat a small, balanced snack or your next meal to prevent another drop.

Fast-Acting Carbohydrates for Immediate Relief

These simple carbohydrates are absorbed quickly into the bloodstream, providing a rapid increase in blood sugar levels to combat immediate symptoms. They should be free of significant fat or protein, which can slow down sugar absorption.

Here are some excellent options for a 15-gram carb serving:

  • 4 ounces (1/2 cup) of fruit juice (e.g., apple, orange, pineapple).
  • 4 ounces (1/2 cup) of regular (not diet) soda.
  • 1 tablespoon of honey or table sugar.
  • 5-6 hard candies or jellybeans (check the label for serving size).
  • Glucose tablets or gel (follow package instructions).
  • 2 tablespoons of raisins.

Sustaining Foods for Stable Blood Sugar

After treating the immediate low blood sugar with a fast-acting carb, it's important to consume a more complex carbohydrate and protein snack. This will help sustain your blood sugar and prevent a subsequent crash. Unlike the immediate treatment, these snacks contain fiber, protein, and healthy fats that are digested more slowly.

  • Whole-grain crackers with peanut butter or cheese: The protein and fat from the peanut butter or cheese help slow the absorption of the crackers' carbohydrates.
  • An apple or banana with nuts: The fiber in the fruit combined with the protein and fat from the nuts or nut butter provides a more gradual and lasting energy release.
  • Greek yogurt with berries: Yogurt provides protein, while the berries offer fiber and natural sugar.
  • Half a turkey or chicken sandwich on whole-wheat bread: This offers a balanced mix of lean protein and complex carbohydrates.

Comparison Table: Fast-Acting vs. Sustaining Foods

Feature Fast-Acting Foods Sustaining Foods
Purpose Immediate blood sugar boost Long-term blood sugar stability
Digestion Speed Rapid Slower
Best Used During an active hypoglycemic episode After blood sugar has stabilized
Carb Type Simple carbohydrates Complex carbohydrates
Typical Examples Fruit juice, hard candy, glucose tablets Whole-grain crackers, protein snacks, whole fruit
Presence of Fiber/Fat Minimal to none Present

Foods to Avoid During a Hypoglycemic Episode

While it might seem counterintuitive, certain foods should be avoided during an active hypoglycemic event because they contain fat, which can delay the absorption of sugar and slow down recovery. This includes:

  • Chocolate: High in fat, which slows sugar absorption.
  • Ice cream: Also high in fat and can be slow-acting.
  • Baked goods and pastries: Often high in fat and processed ingredients.
  • Foods with artificial sweeteners: "Diet" or "sugar-free" drinks will not raise your blood sugar.

A Balanced Diet for Prevention

Beyond treating an active low, a strategic dietary approach can help prevent future episodes. The goal is to maintain a steady blood sugar level throughout the day, avoiding sharp spikes and drops.

Eat Regular, Balanced Meals

  • Aim for small, frequent meals every 3-4 hours instead of three large meals.
  • Ensure each meal contains a balance of complex carbohydrates, protein, and healthy fats. For example, a meal of grilled chicken with quinoa and steamed vegetables provides balanced nutrition.

Prioritize Complex Carbohydrates

  • These are found in whole grains, vegetables, and legumes and provide a slow, steady release of energy.
  • Examples include brown rice, oats, whole-wheat bread, and lentils.

Incorporate Lean Protein and Healthy Fats

  • Protein and fat further slow digestion, preventing rapid blood sugar fluctuations.
  • Good sources include nuts, seeds, lean meats, and fish.

Limit Alcohol and Processed Sugars

  • Alcohol can cause hypoglycemia, especially when consumed on an empty stomach. If you do drink, have it with a meal.
  • Minimize sugary drinks, processed snacks, and refined carbs that cause rapid spikes and crashes.

Conclusion

Effectively managing low blood sugar involves a two-step process: using fast-acting carbohydrates to treat the immediate symptoms and following up with a balanced, sustaining snack to ensure long-term stability. By understanding the difference between these food types and following a consistent, balanced dietary plan, you can significantly reduce the risk and severity of hypoglycemic episodes. Always consult a healthcare professional for personalized medical advice regarding your specific condition and treatment plan.

Medical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider with any medical questions.

Frequently Asked Questions

For most people with diabetes, a blood sugar reading below 70 mg/dL (3.9 mmol/L) is considered low, or hypoglycemic.

Chocolate contains a high amount of fat, which slows down the absorption of sugar into your bloodstream. During a low blood sugar event, you need a rapid response, which high-fat foods prevent.

The 15-15 rule involves eating 15 grams of fast-acting carbohydrates, waiting 15 minutes, and then rechecking your blood sugar. You repeat this until your level is back in a safe range.

Effective choices include 4 ounces of fruit juice, 1 tablespoon of honey, or glucose tablets. Avoid diet or sugar-free versions of these items.

After your blood sugar is back in a safe range, eat a balanced snack or meal with complex carbohydrates and protein, such as whole-grain crackers with cheese or a turkey sandwich.

Prevention includes eating regular, balanced meals and snacks, monitoring blood sugar levels, and adjusting medication or exercise as needed. Keeping a source of fast-acting sugar on hand is also recommended.

While rare, low blood sugar can occur in people without diabetes. Causes can include certain medications, excessive alcohol consumption, or underlying medical conditions.

References

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Medical Disclaimer

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