What are the side effects of EGCG?

Some experts theorize that these negative effects may be related to toxic contamination of the supplements and not the EGCG itself, but regardless, you should be very cautious if you're considering taking this supplement.
...
Possible side effects
  • liver and kidney failure.
  • dizziness.
  • low blood sugar.
  • anemia.
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How much EGCG is toxic?

Based on allometric scaling, the doses of EGCG observed to cause toxicity in the study (500 – 1500 mg/kg) correspond to a dose in humans of 30 – 90 mg/kg assuming a daily requirement of 12 and 2000 kcal for mice and humans, respectively (Schneider et al., 2004).
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What does EGCG do for the body?

Epigallocatechin gallate (EGCG) is a unique plant compound that gets a lot of attention for its potential positive impact on health. It's thought to reduce inflammation, aid weight loss, and help prevent heart and brain disease.
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When should you take EGCG?

Intake with Empty Stomach. One oral dose in the morning after an overnight fasting period [17,18] at least 30 min before breakfast, and a second dose in the afternoon with fasting period of at least 4 h, at least 30 min before dinner, seem to be necessary to reach high plasma levels of EGCG [6,18].
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Does green tea extract have any side effects?

Drinking large amounts might cause side effects due to the caffeine content. These side effects can range from mild to serious and include headache and irregular heartbeat. Green tea extract also contains a chemical that has been linked with liver injury when used in high doses.
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Does EGCG raise blood pressure?

We suggest that EGCG may reduce caffeine-induced increases in blood pressure and heart rate and may decrease the levels of catecholamines in the blood. Therefore, EGCG counteracts caffeine-induced cardiovascular activity. The stimulant effects of caffeine should be reduced by the amount of EGCG in green tea.
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Who should not take green tea?

Precautions. Pregnant and breastfeeding women, children under the age of 2 and people with kidney disorders, heart conditions, stomach ulcers and psychological problems should also avoid taking green tea. People with glaucoma, anemia, liver disease, osteoporosis and diabetes should also avoid it.
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How much EGCG per day is safe?

A safe intake level of 338 mg EGCG/day for adults was derived from toxicological and human safety data for tea preparations ingested as a solid bolus dose. An Observed Safe Level (OSL) of 704 mg EGCG/day might be considered for tea preparations in beverage form based on human AE data.
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Does EGCG burn fat?

An eight-week study determined that tea catechins increased fat burning, both during exercise and rest (9). Several other studies confirm these findings, indicating that EGCG boosts the burning of fat — which may lead to reduced body fat in the long term ( 10 , 11 ).
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Is EGCG anti-inflammatory?

EGCG has also been shown to exert anti-inflammatory activity in immune cells.
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Can green tea supplements cause liver damage?

Drinking green tea has not been associated with liver injury or serum aminotransferase elevations; indeed, cross sectional studies suggest that regular use of green tea is associated with lower serum ALT and AST values.
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What foods are high in EGCG?

Though EGCG is predominantly found in green tea, it also exists in small amounts in other foods, such as (3): Tea: green, white, oolong, and black teas. Fruits: cranberries, strawberries, blackberries, kiwis, cherries, pears, peaches, apples, and avocados. Nuts: pecans, pistachios, and hazelnuts.
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Does green tea burn belly fat?

Green Tea Can Help You Lose Fat, Especially Harmful Abdominal Fat. When it comes to actual pounds lost, the effects of green tea are relatively modest. Although many studies show that people do in fact lose weight, there are also some studies showing no effect.
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Can EGCG cause liver damage?

Based on safety assessment of green tea products, the European Food Safety Authority recently found that green tea supplements providing more than 800 mg of EGCG per day are linked with a greater risk of liver injury.
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What brand of green tea has the most EGCG?

Teavana Green Tea Gyokuro has been found to have the most EGCG but is also one of the most expensive brands. Amongst other, more readily available brands, Celestial Seasoning and Lipton green tea beat Bigelow and Stash brands.
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Does green tea reduce liver fat?

Green tea with high-density catechins improves liver function and fat infiltration in non-alcoholic fatty liver disease (NAFLD) patients: a double-blind placebo-controlled study.
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How can I reduce my stomach fat?

19 Effective Tips to Lose Belly Fat (Backed by Science)
  1. Eat plenty of soluble fiber. ...
  2. Avoid foods that contain trans fats. ...
  3. Don't drink too much alcohol. ...
  4. Eat a high protein diet. ...
  5. Reduce your stress levels. ...
  6. Don't eat a lot of sugary foods. ...
  7. Do aerobic exercise (cardio) ...
  8. Cut back on carbs — especially refined carbs.
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Does coffee contain EGCG?

They're both particularly rich in a group of antioxidants called polyphenols. In both drinks, these are responsible for many of their benefits and flavor ( 20 ). Epigallocatechin gallate (EGCG) and chlorogenic acid (CGA), are the most abundant polyphenols in green tea and coffee, respectively.
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How can I reduce my tummy in 30 days?

You want to lose a few pounds of belly fat in a relatively short period of time.
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  1. Follow an intermittent fasting eating routine. ...
  2. Do some cardio first thing in the morning. ...
  3. Do HIIT training at least three times a week. ...
  4. Do some basic strength training. ...
  5. Do a reasonable amount of core exercises. ...
  6. Lose some weight.
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Is green tea extract and EGCG the same?

Is green tea extract the same as green tea? No. Green tea extract, EGCG, and other green tea supplements are not the same as green tea.
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What time of day should you take green tea extract?

To avail the full antioxidant powers of green tea, it must be consumed in-between-meals. This means, you should consume it at least two hours before and two hours after your meal.
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Is taking green tea pills the same as drinking green tea?

Dec. 15, 2004 -- You may absorb more, powerful antioxidants by taking green tea supplements than by sipping on green or black tea drinks, according to new research. Antioxidants called polyphenols are thought to be responsible for tea's health benefits.
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What medications does green tea interfere with?

Medications known to interact with green tea
  • anisindione.
  • atorvastatin.
  • bortezomib.
  • dicumarol.
  • digoxin.
  • lisinopril.
  • nadolol.
  • rosuvastatin.
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Why do I feel dizzy after drinking green tea?

The caffeine in green tea can cause you to feel dizzy or lightheaded when consumed in large amounts. Caffeine decreases blood flow to the brain and central nervous system, resulting in motion sickness. In rare cases, consumption of green tea can lead to convulsions or confusion (9).
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What is the healthiest tea you can drink?

Green Tea. Green tea is often touted as the healthiest tea. It is chock full of polyphenols and antioxidants that help to boost brain and heart health. Green tea is considered one of the least processed true teas as it does not undergo oxidation.
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