Safety check
Alpha Lipoic Acid Side Effects: Blood Sugar and Stomach
Alpha lipoic acid side effects reported in sources are rash, nausea, stomach pain and vertigo. It may also lower blood sugar, so people on insulin or diabetes pills should monitor closely and ask a doctor first. SciatiEase lists 250 mg of R-ALA per 4 capsules, and no part of it was tested in SciatiEase itself.
Written by the SciatiEase label deskUpdated · 4 min read
What are the common alpha lipoic acid side effects?
The common alpha lipoic acid (ALA) side effects in our source are rash, nausea, abdominal pain and vertigo (Linus Pauling Inst., Lipoic Acid). Most reports describe them as mild.
The same source notes that absorption is better on an empty stomach. That can raise stomach upset in some people, so food timing is worth discussing with your pharmacist.
Trials ran from weeks to four years. Longer use at supplement doses is less documented.
| Area | Reported effect | What to do |
|---|---|---|
| Stomach | Nausea, abdominal pain | Ask your pharmacist about timing |
| Skin | Rash | Stop and call your doctor |
| Balance | Vertigo | Stop and call your doctor |
| Blood sugar | May lower it | Monitor and ask first |
Can alpha lipoic acid lower blood sugar?
Yes, alpha lipoic acid may lower blood sugar. People on insulin or diabetes pills should monitor their glucose if they take it (Linus Pauling Inst., Lipoic Acid).
Diabetes is the leading cause of peripheral neuropathy (NINDS, Peripheral Neuropathy). That means many people who look at ALA also take diabetes medicine. Low blood sugar can cause shakiness, sweating and confusion.
We cannot tell you your own risk. We do not know your medicines or doses.
If you take insulin, metformin or other diabetes drugs, ask your doctor or pharmacist before you start ALA. Keep taking prescribed medicine.
What does 250 mg of R-ALA in SciatiEase mean for side effects?
SciatiEase lists 250 mg of R-ALA per serving of 4 capsules, and 125 mg at 2 capsules. That is below the 600 mg or more used in many trials, so it is not a high dose by that measure.
Lower is not the same as risk-free. The capsule also holds PEA, acetyl-L-carnitine, benfotiamine, B vitamins and a herb blend. A reaction could come from any of them.
Acetyl-L-carnitine can cause stomach upset and a fishy odor at high doses (NIH ODS, Carnitine). Feverfew may slow clotting (NCCIH, Feverfew). Passionflower may cause drowsiness (NCCIH, Passionflower). We did not test these effects in SciatiEase.
The full label is on the alpha lipoic acid page.
SciatiEase: from $49.99 a bottle120 capsules · 1, 3 or 6 bottles · 180-day money-back guarantee
See packsWho should ask a doctor before taking alpha lipoic acid?
People on diabetes medicine, blood thinners, gabapentin or sedatives should ask their doctor or pharmacist first. So should anyone who is pregnant, nursing or under 18.
NCCIH advises telling every provider about every supplement you use (NCCIH, Using Supplements Wisely). Herbs in the same capsule add to the list of questions (NCCIH, Herb-Drug Interactions).
Go to emergency care for pain in both legs, numbness around the groin or bottom, bladder or bowel changes, weak legs, or symptoms after an injury.
- Insulin or diabetes pills: ask first and monitor glucose.
- Blood thinners such as Eliquis or warfarin: ask first.
- Gabapentin or sedating medicine: ask first.
- Rash, vertigo or pain: stop and call your doctor.
More cautions are on the side effects page and in supplements and nerve medicines.
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Prices from the order page, October 18, 2026 (SciatiEase order page). One bottle is $69.00 plus $6.95 S&H. Every pack carries the 180-day money-back guarantee. Check your medicines first.
FAQ01
Quick answers on ALA safety
Should alpha lipoic acid be taken on an empty stomach?
Absorption is better on an empty stomach (Linus Pauling Inst., Lipoic Acid), but that can upset some stomachs. There is no single right answer. Ask your pharmacist, especially if you take diabetes medicine and your meals affect your glucose.
Can alpha lipoic acid cause low blood sugar?
It may. Sources advise people on insulin or diabetes pills to monitor blood sugar (Linus Pauling Inst., Lipoic Acid). Watch for shakiness, sweating or confusion, and tell your doctor before starting. Do not change your medicine on your own.
What if I get a rash on alpha lipoic acid?
Stop the supplement and call your doctor or pharmacist. Rash is a reported side effect (Linus Pauling Inst., Lipoic Acid). If you also have swelling of the face or trouble breathing, get emergency care right away.
Who wrote this02
Written and reviewed by
Pages built from the Supplement Facts panel, the brand pages and linked NIH, FDA, FTC, NHS and peer-reviewed sources.
Last updated . See our editorial standards and the way we check reviews. This website is run by Isciatiease, a U.S. desk for SciatiEase, not by the manufacturer or by SciatiEase Labs. Purchases made through our order links earn us a commission.
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