Is this vendor (Nutricost) legit? They seem to have quite a presence on Amazon

Buy Nutricost L-Theanine 200mg, 240 Capsules - Double Strength (2 Bottles) on Amazon.com ? FREE SHIPPING on qualified orders

https://www.amazon.com/dp/B0731MG1NS/ref=cm_sw_r_cp_apa_Mr3sAb90V0YVQ

About Robert Zinn

Robert Zinn, M.D., Ph.D. is a medical doctor, physician, and web entrepreneur, who, for over 15 years was employed by academic and research institutions and focused his clinical practices on very specialized patient populations, such as those with rare genetic diseases or rare cancers. He shares his knowledge through his website, NutritionTheory.org

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