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But, "there's a lot of reason to be optimistic about the potential benefit for cancer risk reduction, and reason to be enthusiastic about studies asking this question," says Dengel
A 2016 study found that L-theanine could help decrease upper respiratory tract infections
10.1093/clinchem/47.12.2150 58
doi: 10.1038/s41586-019-1548-x 48 FritschMGuntherSDSchwarzerRAlbertMCSchornFWerthenbachJPet al
doi: 10.1016/j.animal.2020.100055 116 St-PierreN
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