I saw your comments above regarding parabens so that made me feel slightly better Controversial stuff is so hard
Common sources of Vitamin B12 include: Meat (beef, pork, liver) Fish (salmon, tuna) Eggs Dairy (milk, cheese) Fortified cereals and nutritional yeasts People following a vegetarian or vegan diet, who may not get enough B12, are at greater risk of deficiency
Reported issues at therapeutic doses are mild and uncommon, and include local injection-site reactions, occasional dizziness, and transient changes in blood pressure [Sikiric et al., Inflammopharmacology, 2018]
This distinction matters: the anterior lobe is controlled by hormones carried in blood, while the posterior lobe is controlled by direct neural connections