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Description
You can increase your intake of vitamin B12 naturally by eating animal-based foods rich in vitamin B12, such as fish, meat, and dairy

Sig Transduct Target
These include hormonal, neurotransmitting, and immunomodulatory functions [2]

PLoS One 15 , e0234001 (2020)

Of significant importance: this study did not manipulate diet or use any other gut-healing agents
