We know GLP-1 affects the brains reward system, so it stands to reason that the brain mechanism that makes some people indifferent to food may also make them indifferent to other pleasures, like sex, hobbies, or spending time with loved ones
While vitamin B12 is naturally present in certain foods, deficiency can occur due to dietary reasons, digestive conditions, or reduced absorption with age
Nature Reviews Drug Discovery, 21(8), 579-598
Mater Sociomed
Moreover, as women can also lose iron due to blood loss during menstruation, those who avoid meat may even face the risk of extreme iron deficiency that can lead to life-threatening conditions
Track measurements, how clothes fit, performance in physical activity, and energy levels alongside weight