Safety guide
Signs of Low Blood Sugar and the 15-15 Step
The signs of low blood sugar include shakiness, sweating, hunger, dizziness, confusion and a fast heartbeat. For many people with diabetes, low means under 70 mg/dL. Treat it with 15 to 20 grams of fast carbohydrate and recheck in 15 minutes. Insulin and some pills can cause lows; a supplement should never replace them.
Written by the Sugar Defender label deskUpdated · 4 min read
Recognize it01
What are the signs of low blood sugar?
Common signs are shakiness, sweating, hunger, dizziness, confusion and a fast heartbeat (NIDDK, Low Blood Glucose).
For many people with diabetes, a low is a reading under 70 mg/dL.
A severe low can cause seizures or loss of consciousness (NIDDK, Low Blood Glucose).
- Shaky or jitteryTrembling hands, feeling nervous
- Sweaty, chillsClammy skin out of nowhere
- Hungry, nauseousSudden strong hunger
- Dizzy, confusedTrouble thinking or speaking clearly
- Fast heartbeatPounding or racing pulse
15-15For many people with diabetes, a reading under 70 mg/dL is a low. Take 15-20 g of fast carbohydrate (juice, glucose tablets), then recheck after 15 minutes.
Call 911If a person with a low passes out, has a seizure or cannot swallow safely. Never give food or drink to a person who is unconscious.
Signs and steps follow NIDDK (NIDDK, Low Blood Glucose). Insulin, sulfonylureas and meglitinides can cause lows, and supplements may add to them (ADA, Vitamins & Supplements).
Act02
What should I do when my blood sugar is low?
Eat or drink 15 to 20 grams of fast carbohydrate, wait 15 minutes, then check again (NIDDK, Low Blood Glucose).
Repeat if you are still low.
Take fast carbs
15 to 20 grams.
Wait and recheck
Sit down for 15 minutes.
If someone with a low passes out, has a seizure or cannot swallow safely, call 911.
Causes03
What causes low blood sugar, and can a supplement do it?
Insulin, sulfonylureas and meglitinides are the usual drug causes (NIDDK, Low Blood Glucose).
Some supplements can also cause lows with diabetes drugs (ADA, Vitamins & Supplements).
| Driver | Why it matters |
|---|---|
| Insulin, sulfonylureas, meglitinides | Too much for the meal or activity (NIDDK, Low Blood Glucose) |
Keep taking prescribed medicine as directed; never change it because of a supplement.
Sugar Defender: from $49 a bottle60 mL · 1 mL a day · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day guarantee
See packsThe drops04
Can Sugar Defender cause low blood sugar?
We have no trial of the product, so we cannot rule it out. The label lists gymnema and ginseng.
If you use insulin or a pill that can cause lows, ask your clinician before ordering.
Order on the sales page
Thinking about trying Sugar Defender?
Check your medicines first. The two larger packs cost less per bottle and ship free in the US; the 60-day money-back window starts on the day you buy.
Prices on the order page, October 18, 2026 (Sugar Defender sales page). A 2-bottle pack is also sold, at $158 plus shipping. See all three on the pricing page.
FAQ05
What do people ask about signs of low blood sugar?
People most often ask: Can you have low blood sugar without diabetes? The short answer, and 3 more, open below.
Each answer starts with the direct reply, then the reason, with a source where one exists.
Can you have low blood sugar without diabetes?
It can happen, though it is less common. If you have signs often, such as shakiness or confusion after meals, book a visit so a clinician can find the cause.
What does a low blood sugar feel like at night?
Night lows can bring sweating, bad dreams, a pounding heart or a headache on waking. If this repeats, tell your care team; do not guess.
Is juice or candy better to treat a low?
Either works if it gives 15 to 20 grams of fast carbohydrate (NIDDK, Low Blood Glucose). Pick what you can swallow quickly, and avoid fatty foods because they act more slowly.
Why do I feel shaky when I have not eaten?
Hunger and shakiness can be early signs of a low, and they can also come from caffeine or stress. A meter reading tells you which one it is.
Who wrote this06
Who wrote and reviewed this Sugar Defender guide?
The Sugar Defender label desk wrote it from the label, the sales page and linked public sources.
A medical reviewer's name goes in the box below once a review is on file.
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . See our editorial standards and how we check reviews. This website is run by a U.S. authorized Sugar Defender merchant, not by the manufacturer or the label distributor. We are paid when you buy through our order links.
Keep reading
What should you read next about Sugar Defender?
Read supplements and medicines, side effects, blood sugar numbers next: they pick up where this one stops.
Each one starts from the same label and links its sources.
U.S. authorized Sugar Defender merchant
Ready to try Sugar Defender?
Check your medicines first, then choose a pack. Three or six bottles ship free in the US and cost less per bottle, and the 60-day money-back window starts on the day you buy.
- Secure checkout on the sales page
- 60-day money-back guarantee
- Ships from the U.S.; free on 3 or 6
