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Weve tried and tested effective and reliable vitamin B12 supplements, evaluating their format, absorption, value and suitability for diverse dietary requirements

Also, -carotene supplementation was found to increase the risk of lung cancer in smokers regardless of the nicotine and tar content of cigarettes, indicating that smokers should refrain from taking this vitamin as a supplement unless they have vitamin A deficiency

Your body still needs raw materials

10.1016/j.ijbiomac.2024.133424 49 SongX.ZhuS.ChenP.HouW.WenQ.LiuJ.et al (2018)

Humans get it from dietary sources that include animal-based foods such as meat, fish, milk, cheese, and eggs