B12 is very poorly absorbed by our bodies, so much so that taking a 240mcg supplement might have you absorbing only 2.4mcg
The first step is to schedule an appointment with a trusted dermatologists office, like Skin Wellness, who will assess your health needs and determine if you need a B-12 shot
Your body might need additional assistance to help you burn fat
However, in most other countries, including the United States, Australia, the United Kingdom, and Canada, you cant get B12 injections over the counter at all
Nayana Shetty, MBBS, MD Health Risks Associated with High B12 In some cases, high vitamin B12 levels symptoms can include unusual symptoms like anxiety or a rapid heartbeat, which are more likely associated with the underlying condition, not the elevated B12 levels themselves
Another risk factor is old age, where the stomach acid, required to absorb the vitamin, reduces with age