A local injection-site reaction Intramuscular injections can leave the area sore, red, warm or slightly swollen for a day or two
One clinical trial of pregnant and lactating mothers found that mothers needed to consume 3 times the recommended amounts of vitamin B12 to maintain adequate vitamin B12 status throughout pregnancy and lactation
Pharmacotherapy of obesity: targets and perspectives
Together, these B vitamins work synergistically to support energy levels, metabolism, mental clarity, and overall wellbeing
1 Deficiency is often due to a lack of B12 foods in the diet, absorption issues, and/or genetic mutations that affect uptake
These types of products could have naturally derived peptides or synthetic peptides