Showing Results for Green Tea
Green Tea Supplements and Drinks
If you want to find the best green tea high in antioxidants such as EGCG, you'll want to see our laboratory findings. We discovered a shocking range of EGCG, from less than 1 mg to more than 300 mg per serving! See results for popular brands of green tea as tea bags, loose tea, match powders, and supplement. Also see how much caffeine we found, compare prices, and learn what conditions green tea is good for and about potential side effects.Green Tea Supplements and Drinks Review
Product Reviews (24)
CL Answers (48)
What are the health benefits of green tea, and is it safe?
ConsumerLab explains green tea's potential health benefits for everything from fighting cancer to helping your heart.
Does microwaving green tea affect the amount of EGCG or other catechins in the tea?
Find out if microwaving green tea affects the amount of catechins, like EGCG, in brewed green tea and the best way to brew green tea. ConsumerLab.com's answer explains.
Do any supplements naturally suppress appetite and help with weight loss?
Learn which natural ingredients can suppress appetite and find if these natural appetite suppressants help with weight loss.
How significant are the risks to drinking tea from China from heavy metals?
Find out which types of tea from China pose the greatest risk of toxic heavy metal contamination, including green tea.
Do any supplements help with gum disease or periodontitis?
Supplements for healthy gums may help with gum disease or periodontitis. Learn more about omega fatty acids, lycopene, and probiotics.
Should I worry about getting too much fluoride from drinking tea?
Find out if drinking too much green or black tea can cause an excess of fluoride.
I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements I should avoid, or be taking, due to this drug?
Is taking certain supplements and hypothyroidism medications bad? Learn which supplements can interact with thyroid hormone medications like levothyroxine (Synthroid), thyroid hormone levels, and laboratory tests.
Is there a risk of liver toxicity with certain supplements?
Find out if there is risk of liver damage from supplements such as green tea, niacin, red yeast rice and vitamin A.
Which supplements should be taken with food?
Find out which supplements should be taken with food, including vitamins A, D, E, and K, fish oil, and CoQ10.
Does Gynostemma pentaphyllum really work as an AMPK activator and help for diabetes, high cholesterol, or weight loss?
Find out if Gynostemma pentaphyllum ( jiaogulan) works as an AMPK activator and helps to lower blood sugar and treat diabetes. ConsumerLab.com's answer explains.
Are supplements which claim increased absorption or improved bioavailability telling the truth? Is it worth paying more for these? Are there concerns?
Learn more about bioavailability enhancers, including emulsifiers and enzyme inhibitors.
With herbal supplements, what is the difference between root powder and root extract? Does it matter?
Learn more about the different forms of herbal supplements, including aloe, boswellia, ginkgo, green tea, and milk thistle.
How much caffeine is really in dark chocolate bars?
Just how much caffeine is really in chocolate bars? Get our test results on the caffeine content in dark chocolate and cocoa powder.
I've heard that grapefruit juice can interact with medications because it inhibits an enzyme that breaks down drugs in the body. Do any supplements interact the same way with drugs?
CYP3A4 inhibitors, such as grapefruit, can interact with certain medications by inhibiting the liver enzyme that metabolizes many drugs. ConsumerLab.com's answer explains.
When taking a statin drug like Lipitor or Crestor, are there supplements I should avoid or take?
Learn about the interactions between certain supplements and atorvastatin (Lipitor), rosuvastatin (Crestor), and other cholesterol-lowering statins.
What is Protandim and does it really work?
What is Protandim and does it really work? Can Protandim reduce oxidative stress? ConsumerLab's answers discusses Protandim's effectiveness, reviews and studies.
Have you evaluated a multivitamin by Vita Logic called Daily Extra?
Information about the multivitamin Daily Extra from Vita Logic, including nutrient content.
I read that sterol supplements to lower cholesterol like CholestOff can block the absorption of vitamins. Is that true?
Find out if CholestOff and other sterol supplements can block vitamin absorption in the body and other safety concerns.
Which supplements help reduce the risk of colorectal cancer?
Find out which supplements may reduce the risk of colorectal cancer, including folate, fiber, selenium, and vitamin D.
Can supplements help me lose weight?
Learn more about weight loss supplements, including our lab test results and product comparisons.
How much should I expect to pay for supplements? Are higher-priced supplements any better than low-priced brands?
Learn about the cost of supplements. Info including the best pricing on fish oil, CoQ10, vitamins C & D, magnesium, and calcium.
Is it dangerous to use certain herbals, vitamins, or other dietary supplements when breastfeeding?
Find out which supplements should be avoided when breastfeeding, including medicinal herbs, soy, and flaxseed.
I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug?
Find out which supplements should be avoided when taking blood thinners (anticoagulants) like warfarin (Coumadin), including vitamin K, St. John's wort, and curcumin.
Can fluoride in toothpaste, mouth rinses or drinking water cause attention-deficit/hyperactivity disorder (ADHD) in children?
Find out if community water fluoridation increases the risk of attention-deficit/hyperactivity disorder (ADHD) in children, and learn what the American Dental Association recommends when using fluoride-containing toothpaste and mouth rinses in children.
Do any supplements help relieve stress?
Are there actually supplements for stress relief and panic attacks? Learn more about holy basil, fish oil, L-theanine, and ginseng.
Which dietary supplements and health foods contain high levels of lead?
Information about lead and heavy metals in vitamins, supplements and foods. Information on the adverse effects of lead.
Are there supplements I should take, or take differently, when intermittent fasting?
Supplements that may help when intermittent fasting. Information about whey protein, CoQ10, magnesium and others, plus coffee, fiber and more.
Can white kidney bean extract really help me lose weight?
Does white kidney bean extract help promote weight loss? Find out more including evidence from clinical studies and dosage.
Which supplements reduce the risk of stroke? Which increase the risk of stroke?
Find out which supplements (may help reduce the risk of stroke/might increase the risk of stroke.)
What is Brain Bright and can it really improve memory or cognition?
Learn more about BrainBright, including clinical studies on memory and cognition, safety, and cost.
Which supplements can help to lower blood pressure?
Supplements to lower blood pressure, including CoQ10, vitamin C, fish oil, and olive oil, are all explored to find out what works.
Do any supplements or foods help with brain function, like memory and cognition?
Find out which supplements help improve memory, brain function and cognition, including fish oil, some B vitamins, cocoa, and curcumin. ConsumerLab's answer explains the evidence for supplements promoted to help with brain function and cognition.
What are the best supplements for depression and anxiety?
Best natural supplements for depression and anxiety, including the evidence for fish oil, vitamin D, probiotics, and herbal supplements for depression such as curcumin (from turmeric) and saffron.
Are there supplements I should avoid when taking apixaban (Eliquis) or similar blood thinner drugs like Xarelto?
Learn about supplement interactions with apixaban (Eliquis), rivaroxaban (Xarelto) and other blood thinner drugs in the direct factor Xa inhibitors class. Supplements that may interact with these medications include fish oil and St. John's wort. ConsumerLab.com's answer explains.
Supplements for multiple sclerosis (MS): Do any supplements reduce symptoms or relapse?
Find out if vitamins or supplements such as ginkgo, fish oil, biotin, vitamins A, C, E, D, and B12, or selenium reduce symptoms or relapse in people with multiple sclerosis (MS).
Are there any supplements I should avoid when taking acetaminophen (Tylenol)?
Find out if there are any supplements that should be avoided when taking acetaminophen (Tylenol).
I've heard that rice has high levels of arsenic. Does that mean rice bran oil does too?
Find out if rice bran oil can contain high levels of arsenic like whole rice and other rice products do.
Is it best to take probiotic supplements with or without food? It seems like everyone has a different recommendation.
When is the best time to take probiotic supplements? Learn if you should take your probiotic with or without food.
Is Modified Citrus Pectin (MCP) helpful for prostate or breast cancer?
Modified Citrus Pectin (MCP) information including its effects on cancer, such as prostate cancer, and more.
Which supplements may benefit people with essential tremor, and which should be avoided?
Learn about supplements used for treating essential tremor, including caprylic acid (also called octanoic acid), thiamin (vitamin B1), cannabidiol (CBD), GABA (gamma-aminobutyric acid), and branched-chain amino acids. Find out which work and which don't. Also find out which supplements and food may make essential tremors worse.
Does drinking coffee increase or decrease the risk of cancer? Can it slow cancer progression?
Learn more about coffee, its safety, if it's good for you, and if it impacts your risk of cancer.
What is PQQ? Does it help with aging and memory? Is it similar to CoQ10?
PQQ information (pyrroloquinoline quinone), including evidence from studies on fatigue & tiredness, mood, memory, cognition, and inflammation.
Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?
Find out if certain vitamins, supplements and foods such as fish oil, olive oil, vitamin C and others, can help reduce the risk of breast cancer. ConsumerLab.com's answer explains.
Which supplements can help me sleep and which cause insomnia?
Find out which supplements may improve sleep, including melatonin, L-tryptophan, and magnesium, and which may make sleeping more difficult.
Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Find out if supplements such as vitamin E, fish oil, milk thistle, curcumin, choline, probiotics, vitamin D, reishi mushroom, or extra virgin olive oil are beneficial for fatty liver disease and learn which diet (Mediterranean, ketogenic, DASH, or fasting diets) seems to have greatest benefit.
Do any supplements help for flu?
Which supplements may help prevent or reduce symptoms of colds or the flu, including vitamin D, ginseng, NAC, and elderberry.
Which sunscreens and after-sun products are contaminated with benzene and which are not?
Over 200 sunscreens and after-sun products have been reported to be contaminated with benzene, a carcinogen. See the results, by brand, and find out what to look for, and what to avoid, when choosing a sunscreen or after-sun product.
Does heat kill coronavirus (COVID-19)? Can it disinfect face masks and packages?
Find out if heat kills the coronavirus SARS-CoV-2 that causes COVID-19 infection. Learn what temperature kills the coronavirus and more. ConsumerLab explains.
Recalls & Warnings (67)
Maker of Hoodia and Green Tea Products to Pay $2.65 Million Settlement for Unfair Business Practices
Seller of Green Tea, Prostate, Pain Supplements and More Warned for Manufacturing Violations and Drug Claims
Manufacturer of Green Tea, Vitamin E, Omega-3 and Cranberry Supplements Warned For Manufacturing Violations, Misbranding and Drug Claims
Sellers of Popular Weight Loss Supplements Pay $25 Million Over FTC Allegations of Deceptive Advertising
Brewable Tea and Tea Supplement Company Warned For Manufacturing Violations and Drug Claims
FDA Warns Maker of Weight Loss and Whey Protein Supplements For Manufacturing Violations and Misbranding
Some Supplements May Cause or Exacerbate Heart Failure (Includes vitamin E and many herbs)
Weight Loss and Cleanse Supplements Contain Adulterated and Improperly Labeled Ingredients, FDA Warns
Clinical Updates (46)
Green Tea and Breast Cancer Risk
Does Green Tea Improve Memory?
Green Tea for Weight Control?
Are Green Tea Pills Safe?
Green Tea and Breast Cancer
Green Tea "Blocks" Beta-Blocker
If you take a beta-blocker (which includes the popular drugs metoprolol (Lopressor, Toprol) and propranolol (Inderal)), be aware that chromium and CoQ10 may offer benefits.