Skip to content

Yerba Magic Review

Share this article

Watch this on YouTube.

Yerba Magic positions itself as a kind of “super drink,” powered by yerba mate, a traditional South American tea made from the leaves of the Ilex paraguariensis tree. It’s marketed as a natural way to boost energy, sharpen focus, and support overall wellness. But when you take a closer look at the science behind its ingredients, the claims start to look a lot less magical. Here’s what current research actually tells us about Yerba Magic’s star ingredients—starting with yerba mate itself.

Benefits of Yerba Mate

Exercise Performance

One of the biggest selling points of yerba mate is its ability to increase energy and improve physical performance. In one small study, trained athletes who took 5 grams of yerba mate daily saw a slight improvement in power compared to those who took a placebo.

But when researchers tested yerba mate in non-athletes—specifically, a group of men who drank 3 grams before strength training—there was no measurable improvement in muscle strength. So, while there might be a small benefit for trained athletes, the average person is unlikely to notice a difference.

Mental Focus

Yerba mate is often promoted as a natural brain booster. But in a clinical study where participants drank a yerba mate beverage made from about one tablespoon of powder, there was no improvement in memory, reaction time, or accuracy when compared to decaf coffee.

That said, one long-term observational study suggested that people who regularly consume large amounts of yerba mate may have a slightly lower risk of developing Parkinson’s disease. While that sounds promising, it’s far from definitive. For short-term mental clarity and focus, yerba mate doesn’t appear to offer any real advantage.

Weight Loss

Weight loss is another popular reason people reach for yerba mate, but the evidence here is mixed. Some studies in individuals with obesity have shown that yerba mate can improve metabolic markers, such as insulin sensitivity. However, those changes didn’t translate into actual weight loss or a lower BMI.

In fact, a few studies have found a link between high yerba mate consumption and increased body weight in healthy adults. So, if you’re hoping to drink Yerba Magic as a weight-loss aid, it might not just be ineffective—it could actually work against you.

Benefits of Lion’s Mane

Yerba Magic also includes Lion’s Mane mushroom (Hericium erinaceus), which is often promoted for its potential brain-boosting benefits. This shaggy, white fungus is getting attention for its effects on memory and cognitive function—especially in older adults.

For example, one study found that people with mild Alzheimer’s disease improved their scores on cognitive tests after taking Lion’s Mane. Another study in older Japanese adults with mild cognitive impairment showed similar results after taking 1 gram three times a day for 16 weeks. However, once they stopped taking it, those cognitive improvements disappeared within a month.

But what about younger, healthy people? In one study, college students who took 10 grams of Lion’s Mane daily for four weeks showed no improvement in focus or thinking ability, even when mentally fatigued. Another small trial in adults over 50 found that 3.2 grams daily for 12 weeks did produce some cognitive improvements.

Benefits of L-Theanine

L-theanine, a natural compound found in green tea, is one of the more promising ingredients when it comes to supporting brain function. Studies show that taking L-theanine before doing mental tasks can actually reduce error rates, especially in people whose cognitive performance may already be a bit below average. In fact, when L-theanine is combined with green tea, it appears to support brain function in those with mild cognitive impairment.

L-theanine may also play a role in stress management. Several studies on students found that those who took L-theanine reported feeling less stressed than those who took a placebo. However, the picture gets murkier when it comes to anxiety. While there’s some early evidence that L-theanine might help reduce stress-related anxiety, it doesn’t seem to make much of a difference when anxiety is measured on its own. A few small studies showed that a single dose of L-theanine didn’t reduce anxiety during stressful events. Even in people with Generalized Anxiety Disorder, taking L-theanine alongside antidepressants didn’t improve outcomes any more than using antidepressants alone.

As for physical performance, L-theanine doesn’t seem to offer much. One study looked at athletes taking an L-theanine supplement and found no noticeable improvements in energy, focus, or performance during workouts.

Yerba Mate vs Green Tea vs Coffee

So where does yerba mate—and drinks like Yerba Magic—fit in compared to better-known options like green tea and coffee? Despite all the marketing hype, the truth is that most health claims surrounding yerba mate just aren’t backed by strong scientific evidence. Any minor benefits it may offer—like a slight increase in alertness—likely come from its moderate caffeine content. On average, yerba mate contains about the same amount of caffeine as green or black tea, though some blends can reach caffeine levels closer to coffee.

The major difference is scientific backing. Green tea and coffee are supported by a large body of human research that confirms their health benefits. Yerba mate? Not so much. Many of its claims rely more on tradition and exotic appeal than on proven science.

Let’s take coffee as an example. For energy and physical performance, the benefits are clear. Research consistently shows that caffeine from coffee improves muscle strength, endurance, and workout performance. It also sharpens brain function—studies show that coffee can improve reaction time and working memory in healthy adults. When it comes to weight loss, coffee also shows promise. In overweight or obese men on a calorie-controlled diet, drinking coffee twice a day helped reduce body weight. Interestingly, darker roasts may be more effective than lighter ones for controlling appetite and supporting fat loss.

Green tea offers a different set of benefits. While green tea extract doesn’t directly boost endurance, it can improve performance indirectly by helping the body use oxygen more efficiently. In terms of brain health, the key antioxidant in green tea—EGCG—didn’t improve focus or mood in young adults. However, older adults (ages 50 to 69) who took matcha powder experienced small improvements in attention and mental task performance. When it comes to weight loss, the evidence supports high doses: a meta-analysis of 25 studies found an average weight loss of about 1.8 kg, but only in people consuming 500–800 mg of EGCG per day. Lower doses didn’t have much effect.

Is Yerba Magic Worth It?

While yerba mate is often marketed as a cutting-edge health drink, especially in popular products like Yerba Magic, the science just doesn’t stack up. Compared to green tea and coffee, yerba mate falls short in terms of proven benefits. Green tea is rich in EGCG, a powerful antioxidant that supports metabolism and overall health. It also contains L-theanine, which helps promote calm focus. Coffee, on the other hand, is loaded with polyphenols and has a long track record of improving energy, mental sharpness, and metabolic health.

Both green tea and coffee have been thoroughly studied in humans, and their benefits are well-documented. Yerba mate has limited research, and the results are mixed. A lot of the excitement around it seems to come from its traditional South American roots and its “all-natural” image—but that doesn’t mean it works better.

If you enjoy the bold, earthy taste of yerba mate, there’s no harm in sipping on a can of Yerba Magic now and then. Just don’t expect it to perform miracles. When it comes to drinks that truly support brain function, energy, and weight loss, green tea and coffee are still the top choices backed by science.

Top alternatives to Yerba Magic

Learn more about

Citations

Areta JL, Austarheim I, Wangensteen H, Capelli C. Metabolic and Performance Effects of Yerba Mate on Well-trained Cyclists. Med Sci Sports Exerc. 2018 Apr;50(4):817-826. doi: 10.1249/MSS.0000000000001482. PMID: 29117073.

Baba Y, Inagaki S, Nakagawa S, Kobayashi M, Kaneko T, Takihara T. Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study. Nutrients. 2021 May 17;13(5):1700. doi: 10.3390/nu13051700. PMID: 34067795; PMCID: PMC8156288.

Baba Y, Inagaki S, Nakagawa S, Kaneko T, Kobayashi M, Takihara T. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study. J Med Food. 2021 Apr;24(4):333-341. doi: 10.1089/jmf.2020.4803. Epub 2021 Mar 22. PMID: 33751906; PMCID: PMC8080935.

Camfield DA, Stough C, Farrimond J, Scholey AB. Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis. Nutr Rev. 2014;72(8):507-522. doi:10.1111/nure.12120

Chaves G, Britez N, Oviedo G, Gonzalez G, Italiano C, Blanes M, Sandoval G, Mereles D. Heavy drinkers of Ilex paraguariensis beverages show lower lipid profiles but higher body weight. Phytother Res. 2018 Jun;32(6):1030-1038. doi: 10.1002/ptr.6041. Epub 2018 Feb 8. PMID: 29417646.

Dassanayake TL, Wijesundara D, Kahathuduwa CN, Weerasinghe VS. Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study. Nutr Neurosci. 2023;26(11):1138-1146. doi:10.1080/1028415X.2022.2136884

Eichenberger P, Mettler S, Arnold M, Colombani PC. No effects of three-week consumption of a green tea extract on time trial performance in endurance-trained men. Int J Vitam Nutr Res. 2010 Jan;80(1):54-64. doi: 10.1024/0300-9831/a000006. PMID: 20533245.

Einöther SJ, Martens VE, Rycroft JA, De Bruin EA. L-theanine and caffeine improve task switching but not intersensory attention or subjective alertness. Appetite. 2010;54(2):406-409. doi:10.1016/j.appet.2010.01.003

Evans M, McDonald AC, Xiong L, Crowley DC, Guthrie N. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population. Neurol Ther. 2021 Dec;10(2):1061-1078. doi: 10.1007/s40120-021-00284-x. Epub 2021 Sep 25. PMID: 34562208; PMCID: PMC8475422.

Furushima D, Sugiyama I, Nomura Y, Unno K, Yamada H. Effect of Combined Ingestion of L-Theanine and L-Arginine for Short-Term Psychological Stress in Young Adults: A Randomized Placebo-Controlled Study. J Nutr Sci Vitaminol (Tokyo). 2022;68(6):540-546. doi:10.3177/jnsv.68.540

Grgic J, Grgic I, Pickering C, Schoenfeld BJ, Bishop DJ, Pedisic Z. Wake up and smell the coffee: caffeine supplementation and exercise performance-an umbrella review of 21 published meta-analyses. Br J Sports Med. 2020 Jun;54(11):681-688. doi: 10.1136/bjsports-2018-100278. Epub 2019 Mar 29. PMID: 30926628.

Grozier CD, Alves VA, Killen LG, Simpson JD, O’Neal EK, Waldman HS. Four Weeks of Hericium erinaceus Supplementation Does Not Impact Markers of Metabolic Flexibility or Cognition. Int J Exerc Sci. 2022;15(2):1366-1380. Published 2022 Oct 1.

Haskell-Ramsay CF, Jackson PA, Forster JS, Dodd FL, Bowerbank SL, Kennedy DO. The Acute Effects of Caffeinated Black Coffee on Cognition and Mood in Healthy Young and Older Adults. Nutrients. 2018 Sep 30;10(10):1386. doi: 10.3390/nu10101386. PMID: 30274327; PMCID: PMC6213082.

Hidese S, Ogawa S, Ota M, et al. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial. Nutrients. 2019;11(10):2362. Published 2019 Oct 3. doi:10.3390/nu11102362

Jung, Ji & Hur, Yang-Im. (2016). The Effect of Maté Extract on Body Weight and Fat Reduction in Obese Women: A Randomized Placebo-controlled Clinical Trial. The Korean Journal of Obesity. 25. 197-206. 10.7570/kjo.2016.25.4.197.

Kotyczka C, Boettler U, Lang R, Stiebitz H, Bytof G, Lantz I, Hofmann T, Marko D, Somoza V. Dark roast coffee is more effective than light roast coffee in reducing body weight, and in restoring red blood cell vitamin E and glutathione concentrations in healthy volunteers. Mol Nutr Food Res. 2011 Oct;55(10):1582-6. doi: 10.1002/mnfr.201100248. Epub 2011 Aug 2. PMID: 21809439.

Li IC, Chang HH, Lin CH, et al. Prevention of Early Alzheimer’s Disease by Erinacine A-Enriched Hericium erinaceus Mycelia Pilot Double-Blind Placebo-Controlled Study. Front Aging Neurosci. 2020;12:155. Published 2020 Jun 3. doi:10.3389/fnagi.2020.00155

Lobo PCB, da Silva DD, Pimentel GD. Acute Supplementation of Yerba Mate Extract Did Not Change Muscle Strength in Physically Active Men Following the Strength Muscle Test: A Pilot Clinical Trial. Nutrients. 2022 Jun 24;14(13):2619. doi: 10.3390/nu14132619. PMID: 35807800; PMCID: PMC9268497.

Medeiros MS, Schumacher-Schuh AF, Altmann V, Rieder CRM. A Case-Control Study of the Effects of Chimarrão (Ilex paraguariensis) and Coffee on Parkinson’s Disease. Front Neurol. 2021 Mar 10;12:619535. doi: 10.3389/fneur.2021.619535. PMID: 33776884; PMCID: PMC7988202.

Meyer, Katherine & Ball, Peter. (2004). Psychological and Cardiovascular Effects of Guaraná and Yerba Mate: A Comparison with Coffee. Revista Interamericana de Psicología. 38.

Mori K, Inatomi S, Ouchi K, Azumi Y, Tuchida T. Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trial. Phytother Res. 2009;23(3):367-372. doi:10.1002/ptr.2634

Moulin M, Crowley DC, Xiong L, Guthrie N, Lewis ED. Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial. Neurol Ther. 2024 Aug;13(4):1135-1153. doi: 10.1007/s40120-024-00624-7. Epub 2024 May 17. PMID: 38758503; PMCID: PMC11263523.

Park SK, Jung IC, Lee WK, et al. A combination of green tea extract and l-theanine improves memory and attention in subjects with mild cognitive impairment: a double-blind placebo-controlled study. J Med Food. 2011;14(4):334-343. doi:10.1089/jmf.2009.1374

Richards JC, Lonac MC, Johnson TK, Schweder MM, Bell C. Epigallocatechin-3-gallate increases maximal oxygen uptake in adult humans. Med Sci Sports Exerc. 2010 Apr;42(4):739-44. doi: 10.1249/MSS.0b013e3181bcab6c. PMID: 19952844; PMCID: PMC2895949.

Saitsu Y, Nishide A, Kikushima K, Shimizu K, Ohnuki K. Improvement of cognitive functions by oral intake of Hericium erinaceus. Biomed Res. 2019;40(4):125-131. doi:10.2220/biomedres.40.125

St-Onge MP, Salinardi T, Herron-Rubin K, Black RM. A weight-loss diet including coffee-derived mannooligosaccharides enhances adipose tissue loss in overweight men but not women. Obesity (Silver Spring). 2012 Feb;20(2):343-8. doi: 10.1038/oby.2011.289. Epub 2011 Sep 22. PMID: 21938072; PMCID: PMC3677212.

Wightman EL, Haskell CF, Forster JS, Veasey RC, Kennedy DO. Epigallocatechin gallate, cerebral blood flow parameters, cognitive performance and mood in healthy humans: a double-blind, placebo-controlled, crossover investigation. Hum Psychopharmacol. 2012 Mar;27(2):177-86. doi: 10.1002/hup.1263. PMID: 22389082.

Zaragoza J, Tinsley G, Urbina S, et al. Effects of acute caffeine, theanine and tyrosine supplementation on mental and physical performance in athletes. J Int Soc Sports Nutr. 2019;16(1):56. Published 2019 Nov 26. doi:10.1186/s12970-019-0326-3


See also

  • Yerba Magic Review
    Yerba mate is often praised as a health drink, but its benefits aren’t as well-supported as those of green tea or coffee.
  • Prozenith Review
    Prozenith is just another keto BHB supplement with extra ingredients that don’t actually help with weight loss.
  • Gut Drops Review
    Gut Drops contains small amounts of Christensenella minuta, a probiotic linked to gut health but lacking solid proof of benefits.
  • Aqua Sculpt Review
    Aqua Sculpt includes a mix of ingredients meant to support weight loss, but the doses are far too low to have any real effect.
  • Bee Venom Creams in Skincare
    Bee venom creams may offer modest benefits for acne or eczema, but they’re unlikely to help with wrinkles, skin tags, or signs of aging.

Share this article
Tags:

Leave a Reply

Your email address will not be published. Required fields are marked *