Side effects and adverse events may differ between cosmetics, wound gels, compounded preparations, and investigational products
Knapen MF, Mulder TP, Van Rooij IA, Peters WH, Steegers EA
In a study on women with locally advanced breast cancer, over 79% of subjects had vitamin D insufficiency (25-hydroxyvitamin D levels below 30 ng/mL) before chemotherapy, and that number increased to over 97% after chemotherapy (Jacot 2012)
B12 injections will not interfere with your dietary restrictions, and they will ensure that you get enough of this vitamin to sustain healthy digestion, metabolism, and focus
doi:10.1016/j.mehy.2021.110736 [3] Veljaca M., Sladoljev D., Mildner B