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Unfortunately, producing synthetic L-theanine typically results in roughly a 50/50 split between L-theanine and D-theanine in your final product.9 Some research indicates that the D-theanine in an evenly split supplement can suppress the efficacy of L-theanine, so if a manufacturer doesnt take the next step to isolate the L-theanine from the D-theanine, youll end up with a product that could cancel itself out.10 Another way to make L-theanine is to use the process employed by Taiyo International, the company behind the patented Suntheanine L-theanine supplement
PubMed, Zhang, Yu, et al
Consultation with a medical provider can determine the dose and administration form best suited for your condition or goal
With age, muscle mass naturally declines (a process called sarcopenia), and this loss of muscle lowers basal metabolism
Your optimal dose balances effectiveness with tolerability
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