From the Experts

See what nationally recognized doctors and pharmacists are saying about Suntheanine.

Dr. Felicia StolerDr. Felicia Stoler

Nutritionist & Exercise Physiologist

Felicia D. Stoler, DCN, MS, RD, FACSM is a registered dietitian, exercise physiologist and expert consultant in nutrition and healthful living. She is the former host of TLC’s reality show, “Honey We’re Killing the Kids.” She specializes in integrating behavior modification to influence positive health outcomes. Stoler is the author of Living Skinny in Fat Genes (TM): The Healthy Way to Lose Weight and Feel Great. She has published numerous articles (and chapters) on nutrition, exercise, health and wellness. She is very involved with the American College of Sports Medicine and the Academy of Nutrition and Dietetics. and is on the NJ Council on Physical Fitness & Sports. She is the mother of two, step mother of one… practicing what she preaches!

Dr. Felicia D. Stoler is also notable for:
Author Living Skinny in Fat Genes™: The Healthy Way to Lose Weight and Feel Great
Host of TLC’s show “Honey We’re Killing the Kids”
PR Chair/Past President/Media Rep NJ Dietetic Association
President Greater NY Chapter American College of Sports Medicine
NJ Council on Physical Fitness & Sports

Sherry TorkosSherry Torkos

Holistic Pharmacist

Sherry Torkos is a pharmacist, author, and certified fitness instructor. She received her Bachelor of Science degree in Pharmacy from the Philadelphia College of Pharmacy and Science in 1992 and practices holistic pharmacy in the Niagara region of Ontario.

As a leading health expert, she has delivered hundreds of lectures to medical professionals and the public. She is frequently interviewed on radio and TV talk shows throughout North America and abroad.

Sherry has authored eleven books, including The Canadian Encyclopedia for Natural Medicine, The Glycemic Index Made Simple, Winning at Weight Loss and Breaking the Age Barrier.

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Jonny Bowden

Dr. Felicia StolerPhD, CNS
“The Rogue Nutritionist”

Jonny Bowden, PhD, CNS, (aka “The Rogue Nutritionist”) is a nationally known expert on weight loss, nutrition and health. He is a board-certified nutritionist with a master’s degree in psychology and the best-selling author of 14 books on health, healing, food and longevity, including three best-sellers, “The 150 Healthiest Foods on Earth”, the award-winning “Living Low Carb” and his latest book, co-written with cardiologist Stephen Sinatra and featured on the Dr. Oz Show, “The Great Cholesterol Myth”. A frequent guest on television and radio, he has appeared on Fox News, CNN, MSNBC, ABC, NBC, and CBS as an expert on nutrition, weight loss, and longevity. He is a past member of the Editorial Advisory Board for Men’s Health magazine, is the Nutrition Editor for Pilates Style, and is a regular contributor to the Huffington Post as well as Clean Eating Magazine, Better Nutrition, Amazing Wellness, WellaBella and Total Health Magazine Online.
Dr. Jonny has contributed to articles for dozens of national publications (print and online) including The New York Times, Forbes, The Daily Beast, The Huffington Post, Vanity Fair Online, Time, Oxygen, Marie Claire, Diabetes Focus, GQ, US Weekly, Cosmopolitan, Self, Fitness, Family Circle, Allure, Men’s Heath, Prevention, In Style, Natural Health, and many other publications. He frequently appears as an expert on ABC-TV Los Angeles, and is a consultant for the natural foods and supplement industries.

He is the author of:
• “The 150 Healthiest Foods on Earth”
• “The 100 Healthiest Foods for Pregnancy” (with Allison Tannis)
• “The Most Effective Natural Cures on Earth”
• “The Healthiest Meals on Earth” (with Jeannette Bessinger)
• “The 150 Most Effective Ways to Boost Your Energy”
• “The Most Effective Ways to Live Longer”
• “The Live Longer Cookbook” (with Jeannette Bessinger)
• “The Healthiest 15-Minute Recipes on Earth” (with Jeannette Bessinger)
• “The Healthiest Comfort Foods on Earth” (with Jeannette Bessinger)
• “The Healthiest Slow Cooker Recipes on Earth” (with Jeannette Bessinger)
• “Living Low Carb” (Revised and expanded edition) (100,000 in print and winner of the “Consumer Nutrition Book of the Year” award)
• “The Great Cholesterol Myth: Why Lowering Cholesterol Won’t Prevent Heart Disease and the Statin-Free Plan that Will” (with Stephen Sinatra, MD)
• “The Great Cholesterol Myth Cookbook” (with Stephen Sinatra, MD and Deidre Rawlings, PhD.

Dr. Bowden has a Master’s Degree in psychology and a PhD in nutrition, and has earned six national certifications in personal training and exercise. He is board certified by the American College of Nutrition, a member of the prestigious American Society for Nutrition, and a much in-demand speaker at conferences and events across the country.

Dr. LyonDr. Lyon

Researcher and Physician

Dr. Lyon answers some common questions about Suntheanine.

Why can’t I just drink green tea to get the same affects?

Although green tea has numerous health benefits and I encourage people to drink green tea, it is very hard to obtain significant amounts of L-theanine by drinking green tea alone. Although most of the benefits of L-theanine are experienced with doses of 50-400mg, the typical green tea sold in North America contains less than 10mg of L-theanine per serving. The finest grades of green tea sold in Japan may have much more L-theanine (as high as 50mg per serving) but this grade of tea is very hard to find in North America and, if you do find a reliable source, it tends to command such a high price that it is far more economical to purchase nutritional products with defined levels of Suntheanine to enjoy the benefits of L-theanine on a daily basis. As well, green tea with the highest levels of L-theanine also tends to have the highest levels of caffeine, which may pose a problem with higher levels of consumption. To experience the numerous benefits of L-theanine it is wise to consume products with Suntheanine even if you do drink regular amounts of green tea.

How much is too much?

Suntheanine can have noticeable benefits with doses as low as 50mg. However, for most adults, doses of 100mg to as much as 400mg or more are often used for greater effects. In doses of 400mg or greater, some people will experience some degree of sedation. This is advantageous if you are using Suntheanine to improve sleep quality, but it can be a problem during the day. Doses as high as 1000 mg of Suntheanine are safe but caution should be exercised if taking higher doses when you have to drive or operate machinery.

Is Suntheanine safe for children?

L-theanine is a naturally occurring molecule that is present in the diets of children around the world where tea is a consumed and no concerns have ever been raised about its safety. Suntheanine, which is a purified form of L-theanine produced by an enzymatic process, has also been approved as a food ingredient and nutritional supplement in some countries for many years and in these countries it has a perfect safety record. Recently, I was in charge of a large double blind study in which 200mg of Suntheanine was consumed twice per day for six weeks in boys 8-12 years with attention deficit disorder. No side effects were reported in any of these boys and I now view Suntheanine as one of the safest natural products that can be given to a child.

Does green tea have caffeine?

Caffeine is present in all varieties of green and black tea. In fact, the best grades of green tea have more caffeine than any type of black tea and may have nearly as much caffeine as found in coffee cup for cup. Since the best types of green tea also have higher levels of L-theanine, the side effects of caffeine are not as apparent but it is still important to note that green tea drinking can contribute to anxiety and insomnia in susceptible individuals.

Dr. LondonDr. London

Board Certified Family Physician and Triathlete

Would you drink 20 cups of green tea to help you win your next game?There is a more realistic way to stay calm and focused when you train or compete.

Top athletes understand that mental clarity and focus are essential to their performance. A split second loss of concentration can mean defeat or injury. And when it comes to natural alternatives for boosting alertness, there really is not a lot out there. Studies have shown that L-theanine, an ingredient found in green tea, can help you stay calm yet alert, which can be a competitive advantage for even weekend athletes. But you would have to drink as many as 20 cups of green tea in one sitting to get this benefit. Thank goodness there is a more practical solution!

L-theanine is an amino acid that causes alpha wave production, the same alpha waves you get when you meditate. Suntheanine, which is a purified form of L-theanine produced by an enzymatic process, does not make you drowsy as you might think meditation would.

My personal fitness story

I have personally overcome some of the most common excuses for being out of shape: having no time, inheriting so-called ‘fat genes. and dealing with weight gain due to pregnancy.

People talk about inheriting fat, and that is nonsense. Everyone in my family, except my parents, was huge and they suffered the resulting health complications. I have never been obese but I have been overweight. I decided to shock my body so that by my 45th birthday I would have the body I had before having children.

I joined a gym, and hired a personal trainer to keep me motivated. I did all the things I tell my patients to do. At one point my trainer suggested that I think about competing, and it got me thinking about taking my physical fitness to the next level. Short course triathlons made the most sense for me.

Now when patients tell me they have no time to work out, I do not buy it. I am a single mom, a full time physician and a triathlete. Since I started training, my patients tell me I look younger. I feel that way too. I like the example I am setting. The best part is that my patients are now coming in and telling me about their new fitness routines. I am not asking them to do triathlons, only that they do not give into excuses. I tell them the right exercise is the one that they can stick with.

The L-theanine advantage

People today deal with a lot of anxiety and stress. They are worried about paying the bills, staying healthy, keeping their kids safe… normal everyday stressors. Exercise is one key to dealing with stress, and I get a lot of great feedback from my patients about how Suntheanine helps them take the edge off and allows them to keep working out.

I do not know anyone who does not get nervous before a race. When you are training at a high level, there are very few differences in fitness levels among those who win and those who lose. Part of the winning edge is technique, but another important key is being able to think clearly, to breathe calmly and to remain focused. Suntheanine can be your secret competitive advantage – and it is completely safe.

I also make sure I get adequate hydration. Most people need hydration long before they notice they have become thirsty. I have seen people fall down from being dehydrated. To calculate your baseline needs, divide your body weight in half. That is how many ounces of water or liquids you should consume daily.

When you work out at the level that I do, it is also a stress on the body. Most triathletes do not have time to nap after a workout which would enable their bodies to recover, and so their immune systems become suppressed. That is why I also incorporate antioxidants into my workout recovery routine, including a high quality green tea extract or grapeseed extract, an all-natural tomato lycopene complex, and a natural hyaluronic acid for joint protection.

Because L-theanine has been shown to support the immune system, re-hydrating with one of the many recently released L-theanine containing beverages, such as all-natural Zenmaster, VitaminWater b-Relax or LifeWater Enlighten, is another great way to help the immune system bounce back.

Johnny GillespieJohnny Gillespie


Athletes know that preparation starts long before they get to the practice field, and guys studying Empowered Yoga are doing the same. Gillespie encourages his students to offset the stress in their lives, and prepare their bodies for a workout, by adding specific vitamins, minerals and supplements to their daily regimens. Drinking plenty of water, and avoiding processed foods, also go a long way toward keeping men in prime condition.

To maintain calm, balance and focus before and after a workout, Gillespie also encourages men to consume foods and beverages containing Suntheanine (a pure form of L-theanine). “It’s like yoga in a bottle because it helps to bring men back into balance with their nervous systems. Suntheanine brings a state of clarity into your day, which can help you make better lifestyle decisions.”

Lisa Lynn

Dr. Felicia StolerPT, FT

With 25 years of devoted practice to the fields of personal training and health and wellness, Lisa is a one-of-a-kind expert in metabolic weight loss and performance nutrition. Her education includes four certificates from the International Sports and Sciences Association (ISSA) including Certified Fitness Trainer, Specialist in Performance Nutrition, Fitness Therapy, and Elite Trainer from The Professional Division of ISSA.

Committed to helping real-world people achieve lasting results, Lisa pioneered the Leaner Lifestyle program. From her years of research in metabolic boosting and performance nutrition, the Leaner Lifestyle is a way of life specifically designed to promote healthy fat loss by boosting even the most sluggish metabolisms.

Best known for her 13 years as Martha Stewart’s personal trainer, and has appeared on the Martha Stewart show more than 25 times. She is also a regular guest as nutrition and fitness expert on NBC’s The Dr. Oz Show, FOX News, News 8 Connecticut and Sirius Radio where she has inspired and equipped millions of viewers to lose weight and maintain their results through healthier lifestyles. She writes a featured blog for The Dr. Oz Show website and maintains a diverse portfolio of clients including professional body-builders, models, actors, CEOs and real-world people from across the country.

Lisa has also been prominently featured as an expert in Martha Stewart Living, Share Care, Iron Man, Fitness Magazine, Muscle Magazine, Muscle Media, Physique Forum, Performance Press and American Health.

Shaun GoodsellShaun Goodsell

Mind Performance Coach

Shaun Goodsell has had a passion for working with and helping kids and adolescents for the better part of his life. He has been working with kids in adverse situations for twenty years and has seen many of them through the most horrific of situations. He grew up playing hockey and running cross-country for his local high school and has also run an amazing six marathons! With a Bachelor’s Degree in Communications, a Master’s Degree in Counseling Psychology and his undying love for athletics and young people, Shaun has combined his academic background, his innate love for working with kids and adolescents and finally, his passion for sports in general to create The Mental Edge. A company which not only guides athletes toward a higher ground in measures of performance, but also in their every day lives.

Shaun has worked with LPGA Golfers, National Championship Hockey Players, Professional Triathletes, State Champion Football and Hockey Players, as well as those athletes who simply want to make “the team.” Every athlete deals with certain mental interferences and life impairments no matter what level they may be at competitively. There is no such thing as right and wrong, or, good and bad, in Shaun’s mind. I do not look at life in these terms. As a Performance Coach, it is my challenge to help each individual athlete develop a new way of defining his/her performance — it is not about good or bad, but about looking at what factors go into a quality performance and what each athlete can do and/or change, individually, to experience just that. With Shaun’s ability to teach and to inspire, along with his ability to communicate abstract ideas clearly, he is able to help each person he works with identify and look at ways they might be engaging in self-defeating patterns of thinking and/or acting, which results in an overall empowering experience for the individual, raising their level of mental toughness and overall self-esteem. Shaun also works extensively with coaches and parents of athletes in large groups, focusing on their integral roles in athletes’ overall mental development and their lives in general. Each coach and parents leaves these presentations and workshops inspired and better equipped to manage athletes with aim, purpose and compassion.

Dr. TeitelbaumDr. Teitelbaum

Board certified internist and director of the Annapolis Research Center for Effective CFS/Fibromyalgia Therapies.

Doctors have a slew of anti-anxiety medications to jot on their scrip pads, including Paxil and Valium. “But these drugs are often not just ineffective – they are also rife with side effects, such as addiction, sedation, and sexual dysfunction,” cautions Jacob Teitelbaum, MD, the medical director of the Fibromyalgia and Fatigue Centers of America and author of Pain Free 1-2-3: A Proven Program to Get You Pain Free! (McGraw-Hill, 2006)

Find peace of mind with L-theanine, an amino acid found in green tea and “an outstanding treatment for anxiety,” says Teitelbaum. “One of the greatest benefits of L-theanine is that you can use it without becoming sedated or lethargic in the process.”

L-theanine works in a couple ways, according to Teitelbaum. First, it directly stimulates the production of alpha brain waves, which are associated with a relaxed-but-alert state of mind, similar to the state meditation achieves. Secondly, he explains, L-theanine is involved in the formation of the neurotransmitter GABA, which calms you while you’re awake but deepens sleep at night. “L-theanine also naturally stimulates the release of the ‘happiness molecules’ serotonin and dopamine.” One study earlier this year, conducted by researchers at the program in Cognitive Neuroscience at the City University in New York, found that by boosting people’s alpha brain waves, L-theanine helped people stay more focused and responsive while performing mundane tasks. Teitelbaum suggests 50 to 200 mg of the Suntheanine brand of L-theanine, a patented form of theanine produced by an enzymatic process, a few times a day.

An excerpt from the September 2007 issue of Alternative Medicine magazine.