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Still, its not clear whether B12 supplementation can reduce the risk of heart disease directly (13)

Product pages For each product, check whether the description makes claims about human effects, whether any outcome language is tied to a timeframe, whether there are testimonials or before/after references, whether the product is on FDAs banned substances list, and whether FDA-approved appears anywhere and if so, whether its accurate for the specific indicated use

Google Scholar Danesh J, Whincup P, Walker M

doi: 10.3389/fcell.2025.1719332 Received 06 October 2025 Revised 17 November 2025 Accepted 19 November 2025 Published 10 December 2025 Volume 13 - 2025 Edited by Liang Ma, Huazhong University of Science and Technology, China Reviewed by Yu Han, Shanghai Jiao Tong University, China Liang Kang, First Affiliated Hospital of Anhui Medical University, China Yongzhi Cui, Shanghai Jiao Tong University, China Updates Copyright 2025 Wang, Xu, Hua, Mao, Zhang, Ma and Lu