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As long as it's stored away from direct sunlight and extreme heat, it's perfectly fine at a controlled room temperature (typically around 20C to 25C or 68F to 77F)
Nicotinamide (vitamin B3) has been shown to be liver toxic in doses over 3G per day so observant of your daily and weekly intake
For some individuals, particularly those with medical conditions or dietary restrictions, receiving Vitamin B12 through injections is the most effective way to maintain adequate levels
Work with your clinician to review sources, confirm results, and assess contributing factors
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