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Low Blood Sugar Signs: Seven Clues, the 15-Gram Step and When to Call 911
Low blood sugar signs include shakiness, hunger, tiredness, dizziness, confusion, irritability and a fast heartbeat. For many people with diabetes a low means under 70 mg/dL. Treat it with 15 to 20 grams of fast carbohydrate, then recheck in 15 minutes.
Written by the Payarmin daily deskUpdated · 4 min read
Which signs point to low blood sugar?
Common signs include shakiness, hunger, tiredness, dizziness, confusion, irritability and a fast or irregular heartbeat (NIDDK, Low Blood Glucose).
They can feel like stress or a missed meal. A meter reading settles it.
| Reading | What it means |
|---|---|
| Under 70 mg/dL | A low for many people with diabetes |
| Shaky, hungry, sweaty | Check, then treat |
| Confused, cannot swallow safely | Call 911 |
What should you do when your blood sugar is low?
Take 15 to 20 grams of fast carbohydrate, wait 15 minutes, and check again (NIDDK, Low Blood Glucose). Repeat if you are still low.
Fast carbs are juice, glucose tablets or regular soda. A 4 oz glass of juice is a common size, but follow your own care plan.
- Shaky or jitteryTrembling hands, feeling nervous
- Tired or irritableSudden tiredness or a short temper
- Hungry, nauseousSudden strong hunger
- Dizzy, confusedTrouble thinking or speaking clearly
- Fast heartbeatPounding or racing pulse
15-15For many people with diabetes, a low is under 70 mg/dL. Take 15-20 g of fast carbohydrate (juice, glucose tablets), then check again in 15 minutes.
Call 911When someone with a low passes out, has a seizure or cannot swallow safely. Never give food or drink to someone who is unconscious.
Signs and steps are from NIDDK (NIDDK, Low Blood Glucose). Lows can come from insulin, sulfonylureas and meglitinides, and supplements may add to them (ADA, Vitamins & Supplements).
Which medicines and supplements can cause low blood sugar?
Insulin, sulfonylureas and meglitinides can cause it (NIDDK, Low Blood Glucose). Some supplements can add to that effect (ADA, Vitamins & Supplements).
Chromium may add to diabetes drugs and raise the chance of a low (NIH ODS, Chromium). Payarmin lists it at 0.7 mcg, and the blend also names gymnema and ginseng.
If you use insulin or a sulfonylurea, talk to your doctor before any supplement. Do not skip a dose to avoid a low.
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See packsWhat does the Payarmin label say about low blood sugar?
It says nothing about lows by name. It says people with a known medical condition should ask a physician first.
It also says not to exceed the dose. That is 1 or 2 droppers a day, with the dropper size unprinted. Our look at Payarmin side effects covers the rest.
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FAQ01
More about low blood sugar signs
Can you have low blood sugar without diabetes?
It can happen, but this post covers lows in people who use diabetes drugs. If you feel shaky, confused or faint often, and have no diagnosis, see a doctor. Do not treat a pattern of symptoms with a supplement.
How fast do low blood sugar signs appear?
Often within minutes, and sometimes with no warning. Shakiness and hunger usually come first. Because signs can be vague, people on insulin or a sulfonylurea are told to check with a meter instead of guessing.
When is low blood sugar an emergency?
Call 911 when someone with a low passes out, has a seizure or cannot swallow safely. Do not give food or drink to a person who cannot swallow. Severe lows can cause seizures or loss of consciousness (NIDDK, Low Blood Glucose).
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