Safety
Possible Slim Metrix Side Effects, Ingredient by Ingredient
The likeliest Slim Metrix side effects are mild.
They include nausea, stomach upset or loose stools from berberine, green tea or cayenne, a burning throat from alpha-lipoic acid, and poor sleep from ginseng. The rare serious one is liver injury from green tea extract.
Written by the Slim Metrix editorial teamUpdated
The short answer
What are the side effects of Slim Metrix?
Most likely, mild stomach trouble or nothing at all. The amounts in one capsule are small, and the common ingredient side effects are digestive.
No study or adverse event summary of Slim Metrix has been published. So the honest way to judge it is ingredient by ingredient, using what health agencies report at the doses they studied. Those doses were often far higher than one capsule holds.
The label images show no caution or warning text, no storage line and no maker. That does not mean there are no risks. Check the bottle you receive for any warning printed on it, and read the green tea extract profile for the one serious risk worth knowing.
By ingredient
Which Slim Metrix ingredients cause which side effects?
Ten ingredients, and what public health sources report for each.
| Ingredient (most per capsule) | Common or notable side effects | Source |
|---|---|---|
| Alpha-lipoic acid (up to 276 mg) | Burning feeling from throat to stomach; can lower blood sugar | (MSKCC, Alpha-lipoic acid) |
| Green tea extract (up to 138 mg) | Nausea, constipation, belly discomfort, higher blood pressure; rare liver injury | (NCCIH, Green tea) (LiverTox, Green tea) |
| Milk thistle (up to 92 mg) | Bloating, nausea, gas; allergy in people sensitive to ragweed | (NCCIH, Milk thistle) |
| Berberine HCl (up to about 69 mg) | Nausea, belly pain, bloating, constipation, diarrhea | (NCCIH, Berberine and weight loss) |
| Resveratrol (up to about 55 mg) | Stomach upset at very high doses (2.5 to 5 g); bleeding risk with blood thinners | (MSKCC, Resveratrol) |
| Cayenne (up to 46 mg) | Stomach irritation and pain, sweating | (MSKCC, Cayenne) |
| Korean ginseng (up to about 39 mg) | Trouble sleeping; may affect clotting | (NCCIH, Asian ginseng) |
| Banaba (up to about 35 mg) | None in small controlled studies; one kidney case with diclofenac | (Miura et al., eCAM 2012) |
| Zinc 5.5 mg | Copper problems only at 50 mg or more for weeks | (NIH ODS, Zinc) |
| Chromium 50 mcg | No upper limit set; may add to diabetes drugs | (NIH ODS, Chromium) |
Act fast
When should you stop Slim Metrix and get medical care?
Liver warning signs
Dark urine, yellow skin or eyes, or belly pain. Stop the capsules and see a doctor promptly. Green tea extract injuries usually appear 1 to 6 months after starting (LiverTox, Green tea).
Low blood sugar
Shakiness, dizziness, confusion or a racing heart, especially on diabetes medicine. Below 70 mg/dL, treat it with 15 to 20 g of fast carbohydrate (NIDDK, Hypoglycemia).
An allergic reaction
Rash, swelling or trouble breathing. Stop and get care right away.
Liver
Is Slim Metrix bad for your liver?
Unlikely at this dose, but the risk is real enough to know the signs.
The risk is low but not zero. LiverTox rates green tea extract a well-established cause of liver injury, though cases are rare next to how widely it is used (LiverTox, Green tea). Most involve extract in multi-ingredient weight-loss products.
How Slim Metrix compares
People who were injured took roughly 800 mg to 1.86 g of extract a day. Slim Metrix lists green tea second in a 276 mg blend, so one capsule holds at most 138 mg. No safe threshold has been set, though (LiverTox, Green tea).
NCCIH adds that people with a specific immune-related gene variant, about 5 to 15 percent of Americans, appear more likely to react (NCCIH, Green tea). Nobody knows their status without testing.
NIH advises taking green tea extracts with food (NIH ODS, Weight-loss supplements). Breakfast is the easy fit for the label's morning dose.
Interactions
Does Slim Metrix interact with medicines?
Several ingredients can. These are the ones the sources name.
Yes, possibly. The doses are small, but interaction studies rarely tell you where the line is. Show the label to your pharmacist if you take any of these.
Insulin and diabetes drugs
Chromium, berberine, alpha-lipoic acid, ginseng and banaba may add to them (NIH ODS, Chromium) (MSKCC, Alpha-lipoic acid).
Nadolol and atorvastatin
Green tea can lower their blood levels (NCCIH, Green tea).
Blood thinners
Resveratrol may raise bleeding risk and changes how some drugs are cleared (MSKCC, Resveratrol).
Levothyroxine
Chromium taken at the same time cut its absorption in a small study (NIH ODS, Chromium).
Quinolones and tetracyclines
Take the antibiotic 2 hours before or 4 to 6 hours after zinc (NIH ODS, Zinc).
Check fit by situation on the who it's for page.
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Could Slim Metrix push your zinc too high?
Not by itself. Its 5.5 mg is about 14% of the 40 mg adult upper limit (NIH ODS, Zinc). The risk comes from stacking a multivitamin, lozenges and other products. Use the calculator to add yours.
Prevention
How can you lower the chance of Slim Metrix side effects?
Take it the way the label says and keep the routine simple.
Take it with breakfast
Food softens stomach upset and matches NIH advice for green tea extract.
Never double up
One capsule a day is the label serving. Skip a missed dose.
Do not stack fat burners
Avoid other green tea or stimulant products alongside it.
Write down how you feel
Note sleep, stomach and energy weekly, and share it with your doctor.
Timing details are in the how to use guide.
If something happens
How do you report a Slim Metrix side effect?
Stop taking it, get care if needed, then report it. FDA collects supplement problems through its Safety Reporting Portal (FDA, Supplement Q&A) and asks people to stop and report reactions (FDA, FDA 101). Keep the bottle and note the lot number on its base. Then contact the order desk at +1 (281) 878-2829 or [email protected]; if you are still inside 60 days, the money-back window applies.
FAQ
Slim Metrix side effects: common questions
Does Slim Metrix cause stomach problems?
It can, though most people would expect little at this dose. Berberine, green tea extract, cayenne and milk thistle all list digestive side effects such as nausea, bloating or diarrhea (NCCIH, Berberine and weight loss) (NCCIH, Milk thistle). Taking the capsule with breakfast is the simplest way to ease them.
Can Slim Metrix cause liver damage?
It is possible but rare. Green tea extract is a well-established, uncommon cause of liver injury, usually 1 to 6 months after starting (LiverTox, Green tea). Slim Metrix holds at most 138 mg of extract, below the amounts in reported cases, but no safe threshold exists.
Does Slim Metrix keep you awake at night?
It might for some people. Insomnia is the most common side effect of Asian ginseng (NCCIH, Asian ginseng), and green tea naturally contains caffeine, though the label prints no amount. Taking the capsule in the morning, as the label suggests, gives either the most time to wear off.
Can Slim Metrix cause low blood sugar?
It could in people on diabetes medicines. Five ingredients have blood sugar effects, and NIDDK names insulin, sulfonylureas and meglitinides as the drugs that cause lows (NIDDK, Hypoglycemia). Healthy people not on those medicines are unlikely to notice anything.
Does Slim Metrix raise blood pressure?
Probably not much at this dose, but two ingredients deserve a note. Green tea extract has higher blood pressure among its listed side effects (NCCIH, Green tea), and cayenne may affect blood pressure medicines (MSKCC, Cayenne). If you treat high blood pressure, check with your doctor first.
Is Slim Metrix safe while pregnant or breastfeeding?
No. Berberine may be unsafe in pregnancy and breastfeeding, and it can cause or worsen jaundice in newborns (NCCIH, Berberine in the news). Cayenne and ginseng carry pregnancy cautions too. Wait until after breastfeeding, and ask your doctor about safe options.
What should I do if Slim Metrix makes me feel unwell?
Stop taking it and contact your doctor, sooner for liver signs or a reaction. Keep the bottle so you can share the label, then report the problem to FDA's Safety Reporting Portal (FDA, Supplement Q&A). The order desk can help with a refund inside 60 days.
Who wrote this
Written and reviewed by
Plain-language pages built from the label, the sales page and linked public health sources.
Last updated . See our editorial standards and how we check reviews. This website is run by Slimmetrixfit, a licensed U.S. retail desk for Slim Metrix, not by the manufacturer. Orders are processed by BuyGoods on the brand's sales page. Buying through our order links earns us a commission.
Keep reading
More about Slim Metrix
Who it's for
A five-question fit check, the medicines that call for a doctor's advice first, and who is better served by other options.
Read more
Green tea extract
Second in the blend: at most 138 mg of extract and about 69 mg EGCG, a tiny weight effect and a liver flag.
Read moreHow to use
One capsule each morning: food, missed doses, other supplements, medicines and the signs that mean stop.
Read moreLicensed U.S. retail desk for Slim Metrix
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