Br J Clin Pharmacol 85(11):25122523 Liu X, Huang J, Li J, Mao Q, He J (2019) Effects of liraglutide combined with insulin on oxidative stress and serum MCP-1 and NF-kB levels in type 2 diabetes
Virtually no risk
doi:10.1371/journal.pone.0094699
Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives
This combination of eating less and burning more is what produces the significant weight loss numbers seen in early research