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Vitamin B3 (Niacin) Involved in energy metabolism, DNA repair, and cellular signaling, including pathways relevant to digestion and circulation
What is the 4-hour rule for Botox
The NHS does not set an upper safe limit for B12 because harmful effects from excessive intake have not been definitively established
You may have a deficiency if you are vegan, if you have other health conditions which mean you are unable to absorb it properly such as pernicious anaemia, you take disruptive medications such as antacids or other lifestyle factors such as alcohol intake
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