10 Best Green Tea Supplements Tested and Reviewed

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Green tea and its derivative extracts is one of those substances that have seemingly been a part of one culture or another since man knew how to describe its benefits via writing.  Supposedly the first person to discover the delights of green tea was the Chinese Emperor Shennong 2737 B.C., when one of the lightly aromatic leaves found itself settled in his pot of boiling water.  Nowadays studies have linked it to a multitude of health benefits such as weight loss, improved cardiovascular health and cancer prevention, so barring some medical, or ethical reason there shouldn’t be any reason not to at least look into the miracle plant.

So how do you know what to look for in a green tea supplement.  The market is literally flooded with pills, oils, and powders designed to boost your energy, and help you lose weight, but as we all know, not all supplements are created equal, and depending on what your lifestyle is like, one might work better than another.  Here at Runnerclick we researched and compiled a list of the top 10 best green tea supplements that are currently on the market.

BulkSupplements
  • BulkSupplements
  • 5 out of 5
    Our rating
  • Few side effects
  • Price: See Here
Buddha’s Herbs Decaffeinated
  • Buddha’s Herbs Decaffeinated
  • 4 out of 5
    Our rating
  • Low price point
  • Price: See Here
Gaia Herbs
  • Gaia Herbs
  • 4.5 out of 5
    Our rating
  • Easily digestible capsule
  • Price: See Here

 

10 Best Green Tea Supplements

 

1. BulkSupplements

BulkSupplements Pure Green Tea Supplement starts our list, and of all the products reviewed, this one can be mixed to just about any drink you can imagine. It can also be found for a very reasonable price, but more importantly, it's frequently reviewed as being highly effective.
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Dietary Effects: BulkSupplements is on to something with this product. Almost every customer who reviewed it felt that it had some effect on their energy, weight loss, and appetite suppression. Customers also reported a quick onset, so you can take this supplement without having to worry about when it'll kick in.

Side Effects: Side effects were very rare with this supplement, almost entirely being regulated to a sense of jitteriness.

Green tea/EGCg/ Polyphenol Content: Of the reviewed products, this supplement had the second highest green tea content at 696mg per serving, and one of the higher polyphenol contents at 300mg per serving. The manufacturer did not provide an EGCg content

Cost per serving: For a powder, this supplement can be found for a remarkably reasonable price at roughly .10 cents a serving, of which there are about 500.

Pros
  • Powdered supplement - mixes well in every medium
  • No flavor
  • Non-gmo + MSG free
  • Lab tested and verified
Cons
  • Some customers report a bitter aftertaste

Gaia Herbs

Gaia Herbs green tea liquid capsules use organic green tea leaves in order to bring the highest quality of polyphenol antioxidants to the buyer. While the price point may be a bit higher than other supplements, the reported effectiveness of the capsules combined with the mild level of side effects make this the supplement to beat.
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Dietary Effects: Gaia herbs green tea capsules are regularly reviewed as being both effective, and consistent in its fat burning properties, its ability to boost your overall energy and its ability to ward off your appetite.

Side Effects: There aren't a lot in the way of side effects with this supplement as it is generally considered to be soft on the stomach. Some users have reported that they experienced insomnia despite having taken it early in the afternoon.

Green tea/EGCg/ Polyphenol Content: Of the reviewed products, this supplement had the second highest green tea content at 696mg per serving, and one of the higher polyphenol contents at 300mg per serving. The manufacturer did not provide an EGCg content

Cost per serving: This will be the area that turns people off. At an average price point of .64 cents per serving, this is far and away the priciest supplement on the list.

Pros
  • Beneficial to skin conditions and health
  • Has a positive effect on allergies
  • Minimal side effects
Cons
  • Highest price point
  • Some users reported insomnia if used midday

Buddha’s Herbs Decaffeinated

For those of us who can't have, or are sensitive to caffeine, we've got Buddha's Herbs Decaf green tea extract, a supplement that generally got rave reviews, with little in the way of negative comments.
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Dietary Effects: While the effects of this supplement are generally viewed as mild, they are also consistent across the board with buyers noting that they experienced significant increases to their energy, as well as moderate appetite suppression and fat burning.

Side Effects: This pill is great for those of us who are sensitive to caffeine, as less than 1% of the capsule contains the jitter-producing substance. Additionally, Buddha's Herbs supplements are well regarded as being generally soft on the stomach.

Green tea/EGCg/ Polyphenol Content: If you're looking to this supplement for high levels of green tea, or EGCgs, then you may want to consider another source. The GTC is about 400mg per serving, with about 200mg of EGCgs. This may have something to do with the mild effects.

Cost per serving: At an average cost per serving of .08 cents, this is a very affordable option for anybody.

Pros
  • Decaffeinated - less than 1% caffeine per pill
  • Produced at an NSF certified facility
  •  High level of thiamin to aid in cognitive function
Cons
  • The thiamin is bad if you have high blood pressure
  • Rough on the stomach

Life Extension Mega

Life Extension Mega
It seems like Life Extension has essentially bottled lighting with their Mega green tea extract, which is great if you're looking for a strong supplement that usually gets results. If you're concerned with the effects of a supplement heavy in antioxidants though, this might not be the pill to consider.
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Dietary Effects: For a supplement with such a high content of green tea and its associated antioxidants, the Mega green tea achieves pretty pedestrian results, only really exceeding most customers expectations in the energy people seem to gain. Both appetite suppression and fat burning seem to be hit or miss depending on the customer, but that could also be heavily dependent on whether the person is eating correctly or working out.

Side Effects: There are numerous reports of people getting nauseous, having the jitters, or developing headaches after taking this supplement considering the high percentage of green tea. While most of these symptoms can't be avoided, if the jitters bug you go ahead and order the decaf version of this product.

Green tea/EGCg/ Polyphenol Content: Life Extension certainly went to town with their green tea supplements by packing in 725mg of extract, 98% of which are polyphenols and 45% are EGCgs.

Cost per serving: As far as the reviewed products go, the .17 cents per serving is very middle of the road. The nice thing is most options available for purchase come with 100 servings per bottle.

Pros
  • Very potent
  • Comes in caffeinated and decaffeinated varieties
Cons
  • Known for making people nauseous 

NOW

NOW
As we get towards the middle of the list, we start to find supplements that sacrifice one aspect of a perfect supplement for another. While NOW's standard green tea extract isn't going to beat out some of the higher end supplements in performance, it certainly is an attractive choice for the more frugal, health conscious person. Overall this is a decent supplement that does precisely what it ought to do, increase your energy and decrease your appetite.
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Dietary Effects: While NOW created a supplement that effectively raises energy and kind of suppresses appetite, it basically missed the mark in the fat burning department, and this is evidenced by the numerous reviews stating little to no effect in the weight loss category, barring using this in conjunction with a proper exercise regimen. If weight loss is your primary concern, there are better options to explore.

Side Effects: As with any caffeinated supplement, the big concern with this green tea extract is jitteriness, and potential inability to sleep if taken at an inappropriate time. Few customers reported any nausea, or headaches.

Green tea/EGCg/ Polyphenol Content: While the green tea content is comparable to others at 400mg, the EGCg content is only about 40%, or 160mg of the total supplement. This accounts for the mild effects.

Cost per serving: At a measly .06 cent per serving average, this is by far the most cost effective option out of the supplements we've reviewed.
Pros
  • No extreme side effects reported
  • Customers who also drink green tea say the benefits are similar
  • Cheapest price point of the reviewed products
Cons
  • Insomnia is a regular complaint when taken too late in the day

Zhou Nutrition Green Tea Extract with EGCg

Zhou Nutrition Green Tea Extract with EGCg
Zhou Nutrition has a fairly unique, and popular supplement with their EGCg heavy green tea extract. While the green tea percentage of the supplement is nothing specifically special, the all vegetable makeup of the pill makes it popular among people on hyper-specialized diets.
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Dietary Effects: At this point, "par for the course" is the best phrase to describe the beneficial effects of this supplement. As with similar products, weight loss is not noticed, or dependent on the amount of exercise done in conjunction with diet. Where this particular product shines is appetite suppression, with many customers being very happy with the results.

Side Effects: It's worth noting that this product has quite a few reports of nausea, and very few reports of hyperactivity/jitteriness. Otherwise any other effects were mild, or non-existent.

Green tea/EGCg/ Polyphenol Content: There's nothing that jumps out here. This supplement consists of about 500mg green tea, which breaks down to 95% polyphenols and 50% EGCgs.

Cost per serving: As far as cost goes, Zhou's green tea extract comes in at a respectable .14 cents per serving, which considering its all natural makeup makes it a very viable option for just about anybody.
Pros
  • Gluten free
  • Targeted to people on low carb/keto diets
Cons
  • Aside from the normal side effects, some customers reported an increase in overall anxiety on this supplement.

Green Tree Life Sciences

Green Tree Life Sciences
Green Tree Life Sciences premium green tea extract is, above all, a very stable, and mild supplement that won't give you much in the way of negative effects. While the benefits are marginal, for those of us with little tolerance for stomach aches, headaches, or the jitters, this is a very attractive option.
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Dietary Effects: As with a lot of other supplements, the strength of this extract is that it effectively mitigates appetites for a prolonged period of time, but conversely it does little in the way of increasing energy, and has hardly any direct benefit to weight loss.

Side Effects: While Green Tree Life Sciences makes sure to warn against all the standard issues of green tea extracts, very few, if any people actually had any complaints about anything short of stomach irritability.

Green tea/EGCg/ Polyphenol Content: 500mg of green tea seems to be the industry standard as far as things go, but the 40% EGCgs and 75% polyphenols are towards the low end of the spectrum. IT is worth noting that the supplement does have a higher than normal 5% naturally occuring caffeine.

Cost per serving: At .20 cents a serving, this is certainly on the higher end of the products reviewed, and given the middle of the road results gained from taking them, some people might be less likely to want to invest in this product.

Pros
  • Made in an FDA approved facility
  • Reports from some customers claim to have seen a drop in cholesterol levels
Cons
  • A bit pricier than other options
  • Less EGCg than other options

Hard Rhino

Hard Rhino
The name of this supplement says it all, Hard Rhino's pure green tea formula, while highly effective, is a bit tough on most of its buyers bodies. As long as you're aware of proper dosing, and ok with the fact that this might cause some irritability in your stomach, than the upsides of this unflavored powder might be for you.
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Dietary Effects: This is one of the few products where customers raved about the results gained in energy, appetite suppression AND weight loss, as well as noting some added benefits to skin health as well, but it comes at a price. As you'll see in the rest of the review, most people almost said that this product was 'too strong', so you need to take that into consideration.

Side Effects: There's nothing outside the realm of 'normal' Hard Rhino's formula, but the nausea and shakiness that have been associated with green tea extracts is so pronounced here that I'd be remiss if I didn't stress that if you're not ok with that potential, or you find yourself to be more susceptible to effects like this than most, you may want to consider another product.

Green tea/EGCg/ Polyphenol Content: While this supplement has a significantly lower amount of green tea in it, 300mg to be exact, 98% of that is polyphenol, and 50% are EGCgs. Considering this is a much quicker method of delivery into your system, it's no surprise that despite the lack of actual supplement, most users felt this was almost too strong.

Cost per serving: While slightly more expensive on average than the other powdered formula on this list, the .12 cent per serving price tag and the insane amount of formula you get (roughly 416) more than makes this a viable choice for a green tea mix.
Pros
  • Highly potent supplement
  • Unflavored powder mixes well with most liquids
  • More affordable than standard extracts
Cons
  • Potency has been linked to frequent vomiting/nausea
  • Almost guaranteed jitters

Advanta Supplements

Advanta Supplements
For those of us who're more than happy to take a highly caffeinated version of a green tea extract, you've got Advanta Supplements' green tea extract. At roughly 7% of the formula, this product is very well known for its energy boosting capabilities, which also has an effect on appetite and essentially weight loss.
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Dietary Effects: Outside of the high caffeine content, the other benefits are a mixed bag, with some customers seeing an immediate improvement in all categories, to some seeing none at all. It's hard to tell what isn't linked to the caffeine and what is, so keep that in mind when purchasing.

Side Effects: With high caffeine content comes all the associated problems: the jitters, upset stomach, and a few complaints of vomiting. IF you're sensitive to caffeine, then this supplement is NOT for you.

Green tea/EGCg/ Polyphenol Content: Similar in green tea content to most, Advanta still managed to get 500mg of the wonder leaf into their product, although only 65% of it is polyphenol, and 30% are EGCgs. What makes this product shine is its 7% natural caffeine.

Cost per serving: This is one of those categories that have effectively changed. At .30 cents a serving, this product will make some people hesitant to buy, but if you're looking for a product that will aid in getting you up and ready to go, you still may want to give this supplement a look.
Pros
  • Empty bottle guarantee - if you use the whole thing and still don't like it, Advanta will refund your money
  • High levels of caffeine
Cons
  • Since the review Advanta has pulled a lot of their single bottle buying options - affects price point
  • While general reviews claim middle of the review results, some folks claim severe side effects

NOW EGCg Green Tea

NOW EGCg Green Tea
NOW strikes again with its EGCg formula, and while there are a lot of similarities to its pure green tea extract, there are a few noticeable differences in some of its effectiveness, and side effects that warrant paying attention to.
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Dietary Effects: 'Middle of the road' is a term frequently used to describe the benefits gained from this supplement, which is a point of concern considering you're paying for extra EGCg. Quite a few customers did comment on improved skin, and hair health after using this, so there's something to be said for the ancillary benefits of this supplement.

Side Effects: Whereas their pure green tea extract was lauded for not having excessive side effects, the EGCg supplement by NOW sees a lot of people complaining about the hallmark side effects of this kind of product. If the extra EGCgs are worth it to you, be prepared for some mild jitters, and perhaps an upset stomach or two.

Green tea/EGCg/ Polyphenol Content: As compared to the other NOW product, this supplement has the same 400mg of green tea in it, but has an extra 60mg of EGCgs that seem to have a noticeable effect in some areas.

Cost per serving: This supplement is slightly more expensive than its more highly rated cousin, coming in on average at .08 cents a serving. If the extra EGCg is a concern, than this is great option for you.
Pros
  • Buyers claim to notice a boost in focus
  • Low price point
Cons
  • Claims to be decaf, but upon further inspection of reviews and container, that might be incorrect

Important Details When Selecting a Green Tea Supplement

A Bit About Tea In General

It seems like as long as man has been able to intentionally heat water, he’s been using the leaves of the plants around him to flavor that water.  Tea comes in three  types:  green, black, and oolong.  What sets green tea apart is the fact that the leaves used are unfermented, which for those of us who don’t know means that it hasn’t been soured, or preserved in any way.  The benefit to using leaves like this is that it allows the leaf to retain a higher content of the powerful antioxidants, or polyphenols, that it’s become so well known for.  

That word, antioxidants, gets thrown around an awful lot when it comes to health food supplements, but more often than not it’s a word that we don’t really understand. We just know it’s important when it comes to what we buy.  Antioxidants are exactly what their name would suggest – cells that prevent the oxidation of other molecules. In humans that means they aid in the prevention of heart disease, certain effects of aging, and some studies have even linked the antioxidants in green and black tea to cancer prevention, particularly in the bladder.

What Makes Green Tea So Special?

The magic of green tea is directly related to the fact that the leaves are fresh, and steamed at a high temperature so as to preserve the aforementioned polyphenols, including epigallocatechin gallate, otherwise known as  EGCg.  These molecules are responsible for the majority of the benefits that people tend to associate with it such the prevention of inflammation and swelling, as well as joint degradation.  There’ve also been studies that show it’s also effective in combating cervical HPV, although science can’t explain quite why yet.

The benefit most of us already know about is green tea’s natural caffeine content, which is generally around 2 to 4 percent.  This will obviously affect our alertness,and energy levels, but an ancillary effect of caffeine intake is that it acts as a diuretic. Caffeine has also been shown to increase neurotransmitter output which stimulates the heart, muscles, and nervous system in turn.

How To Select the Right Supplement

Just like any other supplement, selecting the right green tea product is heavily dependent on a few factors.   Firstly, if you have any kind of cardiac, gastrointestinal, or psychological issue, you should probably consult your physician before using an extract as the supplement could aggravate, or worsen your condition.   Secondly, you need to decide what your overall aim is in taking the supplement.  If your goal is purely weight loss, then a simple green tea supplement might not be for you and you may want to consider looking into a thermogenic compound. The most universal effects seen by users are suppressed appetite, and an increase in overall energy, so if you monitor your diet and exercise regularly, these supplements ought to have an effect on your weight.

As far as what to look for in a green tea extract, the most important factors are how much green tea is in each serving, and what the percentage of polyphenols and EGCg’s are per pill.  It should go without saying, but the amount of green tea that’s in the pill or powder is directly related to the overall strength of the effects, generally speaking, so if you have a low tolerance for certain feelings you may want to consider a lower dosage.

 

The Criteria We Used for Evaluating the Best Green Tea Supplements

Dietary Effects: This category looks at a few different factors, but primarily focuses on how well the supplement affects your body’s ability to burn fat, how it promotes appetite suppression, and how whether or not there was a noticeable increase in energy throughout the day.  In addition to that, we also paid special attention to pills that were reviewed as having a particularly strong impact on things like allergies, skin health, and other conditions that aren’t mentioned in the products descriptions.

Side Effects: As the title would suggest, this category looks at the adverse effects that taking it had on customers who bought it, including, but not limited too indigestion problems, cases of the jitters, nausea, inability to sleep and headaches.  Since these are all common side effects of these kinds of supplements, the severity of the effects was what we paid attention to during evaluation.

Cost per serving:  This is simply how much the product costs per serving.  We’ve taken into account whether or not a serving includes multiple pill/scoops of the product, which may explain why our metric looks slightly different than the one on the bottle.

Green Tea /EGCg /Polyphenol Content: This metric is meant to provide you with some idea of how much green tea is in the supplement, as well as its Epigallocatechin gallate (EGCg) content, and any polyphenols.  While claims supporting the effectiveness of EGCg, and polyphenols in regards to weight and energy are scarce, customers claim that supplements with increased levels of these substances had a better success rate.

 

Frequently Asked Questions

Q: What are the side effects?

A:  As previously mentioned, before taking a supplement you ought to consult your physician, as it can have quite a few negative side effects if you suffer from certain conditions and/or take other medications.  In fact, even if you don’t currently have a condition that warrants special consideration, green tea supplements can be rough on your system.  They may worsen the effects of anemia, bleeding, or anxiety disorders, and have been linked to an increase in irregular heartbeats, most likely due to the caffeine.  On the topic of caffeine, it has been linked to weakened bones, and irritable bowel syndrome (IBS).

Q:  Who shouldn’t take green tea supplements?

A:  As stated before, consult your doctor prior to taking a supplement.  That being said, most people are going to be ok to take green tea supplements including pregnant women to a certain extent.  However, it is not recommended that you take green tea if you’re breastfeeding.  Also, it has not been extensively studied in children as of yet, so kids should avoid a green tea supplement unless specified by a doctor.  If you have a heart condition, kidney problems, liver problems, ulcers or a psychological condition it is not recommended that you start taking these supplements.

If you are taking an amphetamine, or ephedrine based medications DO NOT take a green tea supplement as the combination of the two will speed up your heart rate, and your nervous system which will result in extreme jitters, and may even cause extreme changes to your blood pressure, and cardiac health.

Green extracts have also been shown to have negative interactions with a variety of medications such as benzos, beta blockers, blood thinners, lithium, and it may also decrease the effectiveness of treatments during chemotherapy.  If you’re taking any kind of medication it’s worth giving your doctor’s office a call to make sure there are no interactions.

Q: Why might I want to consider not taking it?

A:  Besides having an obvious health related issue, there are a few things you may want to consider before picking up that bottle of green tea extract at your local health store.  If your main goal is to lose weight, then this might not be the supplement for you.  The main purpose of this supplement is to promote energy, and appetite suppression, and there is little in the way of scientific evidence to support that it effectively increases the body’s ability to burn fat, and it’s arguable that any effect seen may be due to the combination of the supplement, proper diet, and regular exercise.  Also, the concept of legitimacy is one that has to be discussed.  While all the supplements we rated are from well regarded companies, not all supplements are perfectly regulated.  If the fact that the supplement industry isn’t regulate is a concern, you may want to avoid green tea extract (and supplements altogether) as anything over 500 mg can be potentially harmful.  

Sources

  1. Website staff, EGCG Content USDA Study Reveals Healthiest Green Tea, informational website, Sep 02, 2017
  2. University of Maryland Medical Center, Green Tea, Medical Information Website, Sep 02, 2017
  3. Web MD Staff, Green Tea, Medical Information Website, Sep 02, 2017
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