The following comparison summarizes the key considerations: For patients with intact GI absorption, oral high-dose supplementation (1,000 to 2,000 mcg daily) provides a convenient and cost-effective path to correcting deficiency
A deficiency in vitamin B12 can cause fatigue, headaches, indigestion, problems with your vision, increased risk of obesity, and cognitive difficulties
The ratio of Firmicutes to Bacteroidetes is a commonly-studied change with an increase often linked to HFD consumption/obesity in mice 43,44 and humans 45,46 (for review, see John and Mullin, 2016 47 )
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Discussing B12 Shots & B12 Injections: Examining the Definite Relationship Between B12 Injections and Folic Acid Levels, Alongside Alternative Supplementation Options
This not only fixes the deficiency but also makes life better for those affected