(734) 369-8782
3280 Washtenaw Ave., Suite B.
Ann Arbor, MI 48104
M-F 10-6, Sat 10-2, Sun CLOSED
(734) 369-8782 | 3280 Washtenaw Ave., Suite B. Ann Arbor, MI 48104 | M-F 9-6, Sat 10-2 Refill my Rx Contact us
Vitamin B12 deficiency supplements

Are you at risk of Vitamin B12 Deficiency?

Vitamin B12 is an important micronutrient that aids with proper red blood cell formation, neurological function and DNA synthesis. Some of the believed benefits of B-12 vitamin include:

  • Energy – because B12 deficiency causes anemia, it makes sense that by addressing this micronutrient shortage, your energy levels improve.
  • Weight loss – there have been reports of weight loss when taking B12 vitamin shots.
  • Neurological health and cognitive function
  • Heart health – results from trials suggest that taking vitamin B12 and folic acid reduce homocysteine levels, an amino acid found to be an independent risk factor for cardiovascular disease.

Vitamin B12 deficiency is common, especially if you’re part of any of the groups below:

  • People taking metformin for diabetes or long-term use of heartburn medication (antacid)
  • Those following a strict vegan diet, including lactating women following a strict vegan diet and their infants breastfeeding exclusively
  • People suffering from malabsorption disorders such as inflammatory bowel disease (IBS), celiac disease, certain pancreatic disorders
  • Those who have had surgery that removed part of the small intestine where B12 is absorbed, such as weight-loss surgery
  • People with decreased stomach acidity (common in people over the age of 50)

B12 deficiency symptoms

Symptoms associated with deficiency include:

  • Anemia
  • Dizziness
  • Fatigue
  • Shortness of breath
  • Paleness
  • Rapid heartbeat
  • Muscle weakness and tingling in extremities
  • Neurological symptoms such as memory loss, dementia, depression, and paranoia.

If you feel like you meet one of more of the criteria above, checking your B12 levels may provide some answers. Micronutrient testing can be ordered through your physician or licensed healthcare provider.

Sources of Vitamin B12

Vitamin B12 is not made in the body, so it must be taken through diet, supplements or prescription medication.


Foods that contain B12 include fish, dairy products, eggs, meat, and other animal products. Here’s a list of sources of B12:

Supplements for Vitamin B12

For people who don’t have a severe deficiency or nutrient malabsorption problem, supplements may be a good option to bring levels back to normal. When choosing the right supplement for you, look for one that is highly bioavailable, such as Methylcobalamin.

There are different formulations available including capsules, drops and lozenges (dissolvable tablets.)

Vitamin B12 Shots

For patients who have absorption issues, have a severe deficiency, or are looking for fast relief of symptoms, B12 injections may be a good option. After checking your B12 levels, your healthcare provider may decide to prescribe B12 injections. As with dietary supplements, not all vitamin B12 shots are the same. The most common types of are cyanocobalamin, hydroxocobalamin and methylcobalamin. When speaking with your doctor and looking for a pharmacy to fill your prescription, ask whether methylcobalamin is right for you. Methylcobalamin is the most bioactive type of vitamin B12 and injections can be made in higher doses. It’s also preservative-free.

B12 injections are considered safe since vitamin B12 is water soluble and the body gets rid of any excess. Only minor reactions have been reported by some patients, such as pain at the injection site.

Questions about vitamin B12? Contact one of our pharmacists for more details.

If you’re interested in setting up a consultation, give us a call or email us!

Mona registered dietician in Ann Arbor Michigan

Mona AlAudhi, Dietician

Mona Alaudhi is Clark’s in-house Registered Dietitian. She has bachelor’s degree in dietetics and master’s degree in human nutrition from Eastern Michigan University. She has been a dietitian for over 10 years and worked in academia, outpatient, inpatient, fitness centers and retail settings. She has a strong knowledge in supplements and believes everyone should take a probiotic daily.

She offers 1:1 consultations, customized diet plans, and supplement audits. Contact us to schedule an appointment.

Mona’s nutrition philosophy:

“The road to wellness includes nutrition, exercise, healthy mental status and more. As a dietitian, my goal is to provide you with information and tools that will help you create a healthful diet based on real food that is natural, whole, minimally processed , as close to earth as possible and most importantly exciting to eat. Eating right should be easy, affordable, fun and personalized. It should also compliment your level of physical activity and health status. I hope to improve our community’s health and well-being through my nutrition knowledge and passion for good food.”