The safety profile was statistically indistinguishable from placebo across all trials
Vitamin B12 Status and Optimal Range for Hemoglobin Formation in Elite Athletes
E., Metro, D., Alibrandi, A., Papa, M
These effects can include: abdominal pain chest pain cough dizziness eye pain irregular heartbeat ringing in the ears weight gain While some of these effects are merely uncomfortable, others are cause for concern
It also allows for 100% absorption right into your skeletal muscle where B12 can increase mitochondrial energy production
Some people choose B complex shots for broader support: B complex shots include B12 plus other B vitamins that work together, which can be helpful if someone has multiple nutrient gaps, even though B12 is usually the main concern for plant-based eaters