Vitamin B12—along with B1 (Thiamine), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic Acid), B6 (Pyridoxine), Biotin (B7), and Folate (Vitamin B9)—is a water-soluble B Vitamin essential for maintaining healthy energy levels. B12 plays a key role in converting the food you eat into glucose for energy. It also supports normal cell division, red blood cell formation, nervous system function, immune health, and helps reduce tiredness and fatigue.

Because the body cannot produce B12 on its own, it must be obtained through diet and supplementation. Only a small amount can be stored in the liver. Vitamin B12 is naturally found in animal-based foods such as meat, fish, and dairy, which is why vegans and vegetarians are at a higher risk of deficiency. Older adults, people with digestive or absorption issues, and individuals taking certain medications (such as metformin) are also more susceptible.

The richest dietary sources of Vitamin B12 include meat (especially organ meats like liver), fish, dairy products, and eggs. Many breakfast cereals and nutritional yeast products are also fortified with B12. Symptoms of deficiency may include tiredness, breathlessness, poor memory, tingling or numbness in the hands and feet, and loss of appetite or weight loss. While many symptoms can be improved by restoring B12 levels through diet or supplements, some—especially those involving neurological function—may be permanent.

Vitamin B12 supplements are widely used because the body cannot produce B12 on its own, and only a small amount can be stored in the liver. This means it must be obtained regularly through your diet or through supplementation—whether oral, intravenous (IV), or intramuscular (IM). For many people, getting enough B12 from food alone can be challenging.

Vitamin B12 is naturally present in animal products such as meat, dairy, and eggs. As a result, vegans and vegetarians are at a higher risk of low intake and potential deficiency. Older adults, individuals with malabsorption or digestive issues, and those taking certain medications (such as metformin) are also more vulnerable to deficiency.

Possible signs of Vitamin B12 deficiency include (but are not limited to): weakness, tiredness, light-headedness, heart palpitations, shortness of breath, numbness or tingling in the hands or feet, muscle weakness, loss of appetite, and weight loss. While many symptoms can be reversed by restoring B12 levels through diet or supplementation, some—particularly those involving neurological damage—may be permanent. Regular B12 supplementation can help prevent deficiency and the symptoms associated with it.

We recommend having a B12 Booster Shot injection no more than once a month. Our doses and frequency of administration are meticulously set by our CMO so that Get A Drip can help you supplement your diet in a safe way, free from risk of overdosing/having too much B12 in your system. If you have B12 Booster Shots with us, you will not need to supplement via other means in between doses. This applies to our Hydroxocobalamin, Methyl cobalamin and Triple B12 services.
How much Vitamin B12 an individual requires really varies from person to person, depending on factors such as age, diet, digestive health, genetics, levels of medication, alcohol consumption, health conditions, and more. However, the NHS provides a general recommendation of about 1.5μg per day of B12 for adults. In regards to supplementation, the NHS advises that taking 2mg or less a day of Vitamin B12 in supplements is unlikely to cause any harm.