What is Green Tea Extract?

Category: Supplements

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Green tea is a traditional drink in many parts of the world which consists of water brewed with the levaes of the Camellia sinensis ("tea plant") that has undergone minimal oxidation or processing. In contrast to black tea, green tea contains less caffeine.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
General health 14 5
Support immune health 10 5
Amyotrophic lateral sclerosis 9 4
Loss of energy 3 1
Parkinson's disease 2 1
Weight loss 2 3

Show all 16 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 1
Moderate 0
Mild 2
None 18

Commonly reported side effects and conditions associated with Green Tea Extract

Side effect Patients
Nausea if taken on empty stomach 1
Wakefulness 1

Dosages

Based on patients currently taking Green Tea Extract

Dosage Patients
500 mg daily 2
250 mg daily 1
300 mg daily 1
315 mg daily 1
350 mg daily 1
750 mg daily 1
800 mg daily 1

Why patients stopped taking Green Tea Extract

Multiple reasons could be selected

Reason Patients
Other 7
Did not seem to work 6
Expense 2
Personal research 1
See all 15 patients who've stopped taking Green Tea Extract

Duration

Currently taking Green Tea Extract

Duration Patients
6 months - 1 year 1
1 - 2 years 1
2 - 5 years 1
5 - 10 years 5

Stopped taking Green Tea Extract

Duration Patients
Less than 1 month 2
1 - 6 months 7
6 months - 1 year 2
2 - 5 years 3
5 - 10 years 1
Adherence
Adherence Evaluations
Always 13
Usually 5
Sometimes 1
Never taken as prescribed 2
Burden
Burden Evaluations
Very hard to take 2
Somewhat hard to take 0
A little hard to take 1
Not at all hard to take 18
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 1
$50-99 0
$25-49 0
< $25 9
Not specified 11
Last updated:

4 patient evaluations for Green Tea Extract

Mar 14, 2009 (Started Mar 11, 2009)

  • Effectiveness
    Can't tell (for Other)
  • Side effects
    Severe (listed in evaluation)
  • Adherence
    Never taken as prescribed
  • Burden
    Very hard to take
Advice & Tips: I don't offer an evaluation of Green Tea Extract here but a warning as I only lasted one day on it - I had a unpleasant interaction between Nardil (a MAOI) and Green Tea Extract that included side effects: -low blood pressure -headache -body aches/joint stiffness -drowsyness -dizzyness -chest pains -inability to concentrate -flushing -mild sexual arrousal (ok not a bad thing) -mild tinnitus -general worn out feeling that persists for many hours *not to say you may experience any of this but taking the purified extract is not like drinking tea by the cup so i'm giving you a heads-up if youre a MAOI user...take it slow or not at all just in case. I had taken 2x300mg capsules (50% EGCG; incl. caffeine - unknown amount) on an empty stomach with cofactor vitamin B6 (for the EGCG). Bad effects began within one hour. ***update (April 15, 2009) on GTE with regards to illness: At the time I "evaluated" this supplement (to "potentiate" Nardil efficacy) I was coming down with a cold>flu>pneumonia series and the likelihood of a misinterpretation of GTE is high here. Some of the sides (i.e. bad bp associated headaches are also side effects of the infection) can be attributable to the infection therefor I will be re-evaluating/retesting this supplement when I am healthy. First by itself with the necessary cofactors then in association with Nardil to re-test my SULT enzyme theory as biochemically there should be no/minimal reaction...perhaps a small increase in dopamine at a small dose of GTE. That was the point. ***Further evaluation is likely to come***
Side effects: listed in evaluation

  • 0 helpful marks

Mar 2, 2011 (Started Oct 25, 2010)

  • Effectiveness
    None (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 470 mg Daily

  • 0 helpful marks

Dec 1, 2012 (Started Sep 06, 2012)

  • Effectiveness
    None (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 725 mg Daily
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 4 patient evaluations for Green Tea Extract