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Author: Admin | 2025-04-28
That has taken L-theanine for a few days may experience short-term effects as their body learns to adapt to the physiological changes being made by the substance. Others may not experience short-term effects, but may find that side effects emerge as they take L-theanine over a longer term.In addition to time span (duration over which you’ve used L-theanine), it is important to consider the frequency of usage. Someone who administers L-theanine several times per day, on a daily basis may develop certain tolerances to the substance – eventually leading to them taking higher doses. As a person increases their dosage into the supratherapeutic range, the prevalence of side effects may increase.To minimize the likelihood of side effects that you experience, consider taking L-theanine for short periods and cycling off. Limit the frequency of supplementation to an “as needed” basis to minimize likelihood of building tolerance, ultimately allowing you to maintain a low dose, which generally reduces potential side effects.5. Specific Source (Brand)While most L-theanine supplements are similar, being similar does not necessarily mean they are identical in composition. It is important to consider the brand and/or source of the L-theanine that you purchase. For example, some people purchase a specific “brand name” version of L-theanine called “Suntheanine” which contains a specific percentage of the “L” levorotatory enantiomer compared to the “D” dextrorotatory enantiomer.Other sources may market their supplement as “L-theanine” but have more of a racemic mixture of the L-Theanine and D-theanine. In addition to the racemic composition, it is important to consider variation in quality between brands. Certain brands may manufacture L-theanine with varying amounts of herbal extracts or other trace elements.Some supplement companies do a better job of manufacturing quality L-theanine than others, and many individuals will report subjective differences in “efficacy” between certain brands – which could be influenced by manufacturing quality. While the specific source of L-theanine is relatively minor, it should not be assumed that every batch is the “exact” same. This means that specific sources or brands may trigger more side effects than others for certain individuals.Most medical professionals and researchers suggest that L-theanine supplementation isn’t associated with any significant side effects nor adverse reactions. In addition, the FDA considers L-theanine to be a GRAS (Generally Recognized As Safe) supplement. Despite the fact that there isn’t significant scientific evidence to suggest side effects from L-theanine doesn’t mean that they never occur.Below are some of
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