How to Raise Blood SugarQuick Treatment for Hypoglycemia

When blood sugar drops below 70 mg/dL, every minute counts. Low blood sugar (hypoglycemia) can progress from mild symptoms like shakiness and sweating to confusion, seizures, and loss of consciousness if left untreated. The good news is that mild to moderate hypoglycemia responds quickly to the right treatment—usually within 15 minutes.

Whether you're managing diabetes yourself, caring for someone who is, or simply want to be prepared for emergencies, understanding how to raise blood sugar safely and effectively is essential knowledge. This guide covers the standard treatment protocol, the best foods for fast results, when to use glucagon, and how to prevent future episodes.

The 15-15 Rule: Standard Treatment Protocol

Healthcare providers worldwide recommend the 15-15 rule as the standard treatment for hypoglycemia. This simple, evidence-based approach prevents both undertreating (which leaves you symptomatic and at risk) and overtreating (which causes blood sugar to spike too high afterward). The protocol is designed to be easy to remember even when you're feeling confused or shaky.

The reason for eating exactly 15 grams—not more—is that this amount typically raises blood sugar by 30-50 mg/dL without causing it to overshoot. It's tempting to eat everything in sight when you feel shaky and unwell, but overtreating leads to high blood sugar afterward, creating a roller coaster effect that's hard on your body and makes diabetes harder to manage.

If you can't test your blood sugar but have symptoms of a low and have diabetes, treat it anyway. The risk of treating a "false alarm" (which would just mean slightly elevated blood sugar) is far less than the risk of ignoring true hypoglycemia.

Best Fast-Acting Carbohydrates

Not all carbohydrates work equally well for treating hypoglycemia. You need pure, fast-acting sugars that enter your bloodstream quickly. Foods containing fat, protein, or fiber slow down absorption and delay your blood sugar recovery. The following options provide approximately 15 grams of fast-acting carbohydrates each.

Recommended Treatment Options

Fast-acting sources to raise low blood sugar

Food or Drink	Amount for 15g	Notes
Glucose tablets	4 tablets	Best choice — precise dosing, portable, stable
Glucose gel	1 tube (15g)	Good when chewing is difficult
Fruit juice	4 oz (½ cup)	Apple or orange juice — not low-sugar varieties
Regular soda	4 oz (½ cup)	Must be regular, NOT diet or zero-sugar
Honey	1 tablespoon	Fast-acting natural sugar
Table sugar	1 tablespoon	Dissolve in water or take dry
Hard candy	5-6 pieces	Lifesavers, Smarties, or jelly beans
Skim milk	8 oz (1 cup)	Slower than pure sugar options

Glucose tablets are considered the gold standard because they're precisely dosed, don't spoil, and work quickly. They're also easy to carry everywhere and won't tempt you to overeat. Many pharmacies and diabetes supply stores carry them, and they're available in various flavors.

Why These Foods Work

Pure glucose enters your bloodstream fastest because it requires no digestion—your intestines absorb it directly. Sucrose (table sugar) and fructose (fruit sugar) absorb nearly as quickly. All of these options raise blood sugar within 10-15 minutes, which is exactly what you need during a hypoglycemic episode.

Foods That Don't Work Well

During a hypoglycemic episode, you might reach for whatever is nearby. However, many common foods work too slowly to treat low blood sugar effectively. Fat, protein, and fiber all delay gastric emptying and slow sugar absorption—exactly the opposite of what you need in an emergency.

Avoid these for treating lows:

• Chocolate — The fat content significantly slows sugar absorption
• Peanut butter — Protein and fat delay the glucose rise
• Ice cream — High fat content slows absorption
• Cookies, cake, or pastries — Fat delays effectiveness
• Diet or zero-sugar soda — Contains no sugar to raise blood glucose
• Whole fruit — Fiber slows sugar absorption
• Protein bars — Designed for slow energy release

These foods are fine as follow-up snacks after your blood sugar has recovered, but they're not effective as first-line treatment. When you're experiencing symptoms of hypoglycemia, you need sugar that acts within minutes, not gradually over an hour.

Treating Severe Hypoglycemia

Severe hypoglycemia is a medical emergency. It occurs when blood sugar drops so low that the person becomes confused, loses consciousness, or has a seizure. At this point, they cannot safely swallow food or liquid, and oral treatment becomes dangerous due to choking risk.

Glucagon: The Emergency Treatment

Glucagon is a hormone that triggers the liver to release stored glucose into the bloodstream. It's the treatment of choice for severe hypoglycemia when the person cannot swallow safely. If you or someone you care for takes insulin or certain diabetes medications, your doctor may prescribe glucagon to keep on hand for emergencies.

Methods to raise blood sugar levels

Product	Form	How to Use
Glucagon Emergency Kit	Injectable (requires mixing)	Mix powder with liquid, inject into thigh or arm
Baqsimi	Nasal spray	One puff into nostril — no mixing or needles
Gvoke HypoPen	Auto-injector	Pre-filled, can inject through clothing
Zegalogue	Auto-injector or prefilled syringe	Ready to use, inject into thigh, arm, or abdomen

The nasal spray and auto-injector forms are particularly useful because they don't require mixing, making them easier to use during a stressful emergency. Family members, friends, and coworkers should know where glucagon is stored and how to use it.

After glucagon administration, the person typically regains consciousness within 10-15 minutes. Once they're awake and can swallow safely, give them fast-acting carbohydrates followed by a snack with protein and complex carbohydrates to prevent blood sugar from dropping again. Nausea is common after glucagon—start with small amounts of carbohydrates.

What to Do After Treating a Low

Successfully raising your blood sugar above 70 mg/dL is just the first step. Without proper follow-up, blood sugar can drop again within an hour or two, especially if you've been exercising or if your medication is still active in your system.

Immediate Follow-Up (Within 30-60 Minutes)

Once your blood sugar is above 70 mg/dL and you feel better, eat a substantial snack or small meal containing both protein and complex carbohydrates. This combination provides sustained energy and prevents another drop. Examples include:

• Peanut butter on whole grain crackers or bread
• Cheese with crackers
• Half a sandwich with protein (turkey, chicken, or cheese)
• Greek yogurt with nuts or granola
• Apple slices with peanut or almond butter
• A small handful of nuts with a piece of fruit

Physical Recovery

Hypoglycemic episodes are physically exhausting. Even after your blood sugar returns to normal, you may experience:

• Fatigue — The stress response drains your energy
• Headache — Common after significant lows
• Difficulty concentrating — May last several hours
• Emotional effects — Irritability, anxiety, or feeling "off"

Rest if possible, especially after a severe low. Avoid driving or operating machinery until you feel fully recovered and your blood sugar has been stable for at least 30-45 minutes.

Document the Episode

Recording hypoglycemic episodes helps you and your healthcare provider identify patterns and adjust your treatment plan. Note the following:

• Date and time of the episode
• Blood sugar reading (if you tested)
• Symptoms you experienced
• What you were doing before (exercise, missed meal, etc.)
• What medications you had taken and when
• How you treated it and how long recovery took

Common Treatment Mistakes

Even people who have managed diabetes for years sometimes make treatment errors during hypoglycemic episodes. The symptoms themselves—confusion, anxiety, shaking—make it harder to think clearly and follow the protocol. Here are the most common mistakes and how to avoid them:

Overtreating

When you feel terrible, it's natural to want to eat until you feel better. But consuming more than 15 grams of fast-acting carbs at a time leads to blood sugar spikes afterward. This creates a roller coaster pattern that makes diabetes harder to control. Trust the 15-15 rule—15 grams is usually enough.

Not Waiting the Full 15 Minutes

Sugar takes time to absorb into your bloodstream. If you don't feel better after 5 minutes and eat more, you may end up with way too much sugar in your system once it all absorbs. Wait the full 15 minutes before rechecking and retreating if necessary.

Treating Without Testing

While it's appropriate to treat if you have classic symptoms and can't test, guessing without symptoms can lead to unnecessary treatment. If you have your meter available, test first. That said, if you feel symptomatic and can't test, it's safer to treat than to wait.

Using Slow-Acting Foods

Reaching for chocolate, cookies, or other fatty foods delays your recovery. Keep fast-acting carbs readily accessible so you're not tempted to grab whatever's nearest.

Skipping the Follow-Up Snack

The 15 grams of fast-acting carbs raise your blood sugar quickly, but the effect doesn't last. Without a follow-up snack containing protein and complex carbs, you risk another low within an hour or two.

Preventing Hypoglycemia

The best treatment for hypoglycemia is prevention. While occasional lows may be unavoidable for people taking insulin or certain medications, most episodes have identifiable causes that can be addressed. Work with your healthcare provider to identify your risk factors and develop prevention strategies.

Meal Timing and Planning

Skipping or delaying meals is one of the most common causes of hypoglycemia. If you take insulin or sulfonylureas, eating on a regular schedule is essential. When you know you'll be eating later than usual, have a small snack at your normal meal time to prevent a drop.

Exercise Planning

Physical activity lowers blood sugar, which is generally beneficial, but can cause hypoglycemia in people taking insulin or certain medications. Check your blood sugar before exercise, and have a snack if it's below 100 mg/dL. Keep fast-acting carbs with you during activity, and monitor blood sugar after exercise—levels can continue dropping for hours.

Medication Management

Work closely with your healthcare provider to find the right medication doses. If you're having frequent lows, your doses may need adjustment. Never skip meals after taking medications that lower blood sugar, and always take medications as prescribed.

Alcohol Awareness

Alcohol blocks the liver's ability to release stored glucose, which can lead to hypoglycemia hours after drinking—sometimes even the next morning. Always eat when drinking alcohol, check your blood sugar before bed, and consider having a snack. Set an alarm to check blood sugar during the night if you've been drinking.

Regular Monitoring

Frequent blood sugar checks help you catch levels that are trending low before they become symptomatic. Continuous glucose monitors (CGMs) are particularly helpful because they alert you to dropping levels even while you sleep.

Being Prepared: Supplies and Planning

Hypoglycemia can happen anywhere, at any time. Being prepared means having treatment available wherever you are, and making sure the people around you know how to help if needed.

Keep Fast-Acting Carbs Everywhere

Store glucose tablets or other fast-acting carbohydrates in multiple locations:

• On your person — Purse, wallet, pocket, or diabetes supply bag
• At home — Nightstand, kitchen, bathroom
• At work — Desk drawer, locker, break room
• In your car — Glove compartment (be aware that extreme temperatures can affect some products)
• In your gym bag
• When traveling — Carry-on bag, not checked luggage

Medical Identification

Wearing medical ID jewelry (bracelet or necklace) alerts emergency responders to your condition if you're unable to communicate. Include "Diabetes" and whether you take insulin. Many people also carry a medical ID card in their wallet with more detailed information.

Educate Those Around You

Make sure family members, close friends, coworkers, and others you spend time with know:

• Signs of hypoglycemia to watch for
• Where your treatment supplies are kept
• How to help you treat a mild low
• How and when to use glucagon (if prescribed)
• When to call 911

Glucagon at Home

If you're at risk for severe hypoglycemia—particularly if you take insulin, have hypoglycemia unawareness, or have experienced severe lows before—keep glucagon at home and make sure household members know where it is and how to use it. Check the expiration date regularly and replace it before it expires.