b12 injectable for cats Vitamin Cattle, Sheep, Swine, Horses, Dogs & - 3000mcg 100cc or for certain illness or disease like anemia Vitamin B12 - 1000MG
Description
According to these findings, it was proposed that NNMT plays important roles in energy metabolism and in the development of a number of disorders, such as obesity, diabetes, aging, Parkinson's disease, and cancer [19]

This is true for severe deficiency or malabsorption issues

No internet math

2 While all forms of B12 are well-tolerated by many, methylcobalamin is the form of B12 that is most known for causing some mild side effects related to methylation
