Old individuals are more susceptible to deficiency
Lipotropic injections most often contain vitamin B12, as it helps support the breakdown of fatty acids and amino acids to produce energy, according to BetterHealth
If the injection is needed (e.g., to replete B or B in a deficient mother), it can be used, but the infant should be observed for any unusual symptoms (though none would be expected from B vitamins, apart from perhaps looser stools if anything)
Moreover, calcium supplementation has been shown to aid in weight loss in obese humans consuming a calorie-deficient diet (142) and in calorie-restricted obese mice (111), and has also been reported to inhibit weight regain during refeeding in mice (122)
In case I do not see you, good afternoon, good evening, and good night