Green tea and guarana
Green Tea Extract and Guarana in Glyco Reset: The Caffeine Question
Green tea extract and guarana seed extract are two of the 21 names in the Glyco Reset blend, and both carry caffeine. The label prints no caffeine figure, so the amount in one dropper is unknown. MedlinePlus says up to 400 mg of caffeine a day is generally not harmful for most adults.
Written by the Glyco Reset label deskUpdated
The two names01
What are green tea extract and guarana seed extract?
Green tea extract is a concentrate made from tea leaves, and guarana seed extract is a concentrate made from the seeds of a South American vine. Both are on the Glyco Reset label, and both contain caffeine.
The blend lists "Guarana Seed Extract" fourth and "Green Tea Leaf Extract" seventh. Each shares the 200 mg total with 20 other names, so neither has its own printed amount.
Sloan Kettering says guarana seeds contain caffeine (MSK, Guarana (About Herbs)), and that green tea has caffeine as a constituent (MSK, Green Tea (About Herbs)). Neither page gives a milligram figure for the extract in a drop.
Two caffeine sources
Both names point to caffeine.
No printed figure
The label gives no caffeine amount.
Caffeine02
How much caffeine is in supplements like Glyco Reset?
It varies widely, and for Glyco Reset it is unknown. Caffeine in supplements is often not printed, and this label does not print it.
MedlinePlus gives common figures: 95 to 200 mg in 8 ounces of coffee, 70 to 100 mg in an energy drink, and 14 to 60 mg in tea (MedlinePlus, Caffeine). Up to 400 mg a day is generally not harmful for most people.
We cannot say where one dropper falls on that scale. The whole blend is 200 mg across 21 names, which caps any single plant, but the label does not say how much of each plant is caffeine-bearing.
| Item | Caffeine |
|---|---|
| Coffee, 8 oz | 95 to 200 mg |
| Energy drink | 70 to 100 mg |
| Tea | 14 to 60 mg |
| Daily amount generally not harmful for most people | Up to 400 mg |
| Glyco Reset, one dropper | Not shown |
The gap03
How does the label compare with green tea extract amounts in studies?
The liver cases that LiverTox describes involved extract at about 800 mg a day, four times the whole 200 mg blend.
That says the label sits below those amounts. It does not say the drops are free of risk, because the green tea amount is unknown. The bars show the gap only.
The comparison. NIH describes a 1997 trial of 1,000 mcg a day of chromium picolinate in adults with type 2 diabetes. The Adequate Intake is 20 to 35 mcg. (NIH ODS, Chromium fact sheet for professionals)
Read it with care. The studied amount comes from a different product, group and time span. It is not a recommended or effective dose, and no trial tested Glyco Reset.
The comparison. LiverTox gives a typical gymnema supplement amount of 400 mg three times daily. The label's 200 mg is shared by twenty-one names. (LiverTox, Gymnema)
Read it with care. The studied amount comes from a different product, group and time span. It is not a recommended or effective dose, and no trial tested Glyco Reset.
The comparison. LiverTox describes liver injury cases at about 800 mg to 1.8 g of extract a day. The whole blend is 200 mg. (LiverTox, Green Tea)
Read it with care. The studied amount comes from a different product, group and time span. It is not a recommended or effective dose, and no trial tested Glyco Reset.
Each full bar is the daily amount used in the one study or reference we cite. The filled part is the most the label could give per dropper: the whole 200 mg blend is shared by 21 names, so any one plant is a fraction of that. The label also does not say whether each name is a powder or an extract, so even this comparison is rough.
Green tea safety04
Can green tea extract harm the liver?
Rarely, but yes. Green tea extract supplements have been linked to liver injury in case reports, and brewed tea has no reported concern.
NCCIH says liver injury is uncommon but reported with extracts, and that extracts can cause nausea, constipation, stomach discomfort and higher blood pressure (NCCIH, Green Tea). LiverTox counts more than 100 clinically apparent cases, with all three detailed cases recovering (LiverTox, Green Tea).
Sloan Kettering notes that a USP label advises people with a liver problem not to use it (MSK, Green Tea (About Herbs)). The cases involved high-EGCG extracts, and we do not know the EGCG content of this blend.
Tell your doctor right away about yellow skin or eyes, dark urine, or pain in the upper right belly.
Guarana safety05
What are the guarana side effects?
Guarana side effects come mainly from its caffeine: nausea and trouble sleeping, and at high amounts, changes in heartbeat, higher blood pressure and seizures.
Sloan Kettering lists case reports of a racing heart, extra beats and seizures with an energy drink containing guarana, and warns that stimulants should not be combined. It also notes bleeding risk with blood thinners (MSK, Guarana (About Herbs)).
Caffeine can also raise blood pressure and is a caution for people with anxiety or an irregular heartbeat, and in pregnancy (MedlinePlus, Caffeine). Those sources do not say how Glyco Reset behaves, since its caffeine is not printed.
- Count your other caffeine: coffee, tea, soda and energy drinks.
- Skip the drops in the evening if sleep is light.
- Ask first if you take a blood thinner or a stimulant medicine.
Medicines06
Who should ask a pharmacist before taking green tea and guarana?
Anyone with a heart rhythm problem, high blood pressure, liver disease, anxiety, sleep trouble, or pregnancy, and anyone on a blood thinner or a stimulant, should ask first.
NCCIH adds that green tea extract can reduce the effect of nadolol, a blood pressure medicine (NCCIH, Green Tea). Keep taking prescribed medicine, and tell your doctor and pharmacist about every supplement (MedlinePlus, Metformin) (ADA, Vitamins, Minerals, and Supplements (diabetes.org)).
Fainting, a seizure or a very fast heartbeat needs a 911 call, as does severe low blood sugar (Mayo Clinic, Hypoglycemia).
Only blood tests diagnose diabetes and prediabetes (NIDDK, Diabetes Tests & Diagnosis). A supplement label cannot.
A simple method07
How can you check caffeine in a supplement yourself?
Read the bottle, add up your day, and ask the seller in writing when a figure is missing.
Read your bottle
Look for a caffeine line, a warning, and the full Supplement Facts panel on the bottle that arrives.
Add up your day
Tally coffee, tea, soda and any other supplement with guarana or green tea.
Ask in writing
Use the order desk in BuyGoods order desk or the contact page and request a caffeine figure.
See side effects for the whole blend, and pricing for the packs. Confirm the price, shipping and guarantee at checkout.
FAQ08
Green tea and guarana questions
Does Glyco Reset have caffeine?
Probably some, since green tea extract and guarana seed extract both contain caffeine. The label prints no caffeine amount, so one dropper's content is unknown. Ask a pharmacist if you are sensitive to caffeine.
How much caffeine is in guarana seed extract?
Sloan Kettering says guarana seeds contain caffeine but gives no milligram figure. The amount depends on the extract and its strength, and Glyco Reset prints no number for its guarana.
Is green tea extract the same as drinking green tea?
No. NCCIH says brewed green tea has no reported safety concerns, while extract supplements can cause stomach upset and, rarely, liver injury. Extracts are concentrated and usually contain more EGCG.
What are the side effects of caffeine in supplements?
Nausea, jitters, trouble sleeping and higher blood pressure are common cautions. At high amounts, MedlinePlus and Sloan Kettering list heartbeat changes. Check your total daily caffeine, not just this one bottle.
Can guarana side effects affect the heart?
At high amounts, yes. Sloan Kettering lists heartbeat changes, high blood pressure and seizures, with case reports tied to an energy drink. Ask your doctor first if you have a rhythm problem.
Is caffeine in supplements counted in the 400 mg limit?
Yes, all caffeine counts. MedlinePlus says up to 400 mg a day is generally not harmful for most people. Add coffee, tea, soda and energy drinks to whatever these drops contain.
Who should avoid green tea and guarana?
Sources advise caution in liver disease, pregnancy, anxiety, high blood pressure, irregular heartbeat, and with blood thinners. Ask your doctor or pharmacist first, and show them the full label.
Who wrote this09
Written and reviewed by
Pages built from the bottle label and linked NIH, CDC, FDA, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site of a U.S. stocking partner for Glyco Reset. It is not the manufacturer, and it is not the brand's sales page. We earn money when you buy through our order links.
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