B12 shots deliver vitamin B12 directly into the muscle or under the skin, bypassing the digestive system for rapid absorption, primarily to treat or prevent deficiency, often seen with pernicious anemia, absorption issues, or strict vegan diets, and can boost energy, improve mood, and support nerve health, with initial frequent shots followed by less frequent maintenance injections based on individual needs and doctor's guidance

.

What they are

• Injections of synthetic B12 (like cyanocobalamin or hydroxocobalamin) given into a muscle or under the skin.
• Faster and more effective for absorption than oral supplements for those who can't absorb B12 from food.

Common uses & benefits

• Treats Deficiency: Corrects B12 deficiency, preventing anemia and nerve damage.
• Energy Boost: Reduces fatigue and weakness by supporting metabolism and energy production.
• Mood & Brain Function: Helps with mood regulation, concentration, and cognitive health.
• Nerve Health: Prevents nerve damage and can help with symptoms like numbness or tingling.

Who needs them

• People with pernicious anemia or autoimmune conditions affecting absorption.
• Individuals with digestive issues (like gastric bypass) or certain medications that hinder B12 absorption.
• Strict vegans or vegetarians who don't get enough B12 from their diet.

How they're administered

• Initial Phase: Often weekly shots for 1-2 weeks (or until symptoms improve).
• Maintenance: Frequency depends on the cause, ranging from monthly to every few months.