When it comes to essential nutrients, vitamin B12 doesn’t always get the spotlight, but it should. This water-soluble vitamin, also called cobalamin, plays a key role in forming red blood cells, supporting your nervous system, powering cellular metabolism, and even helping with DNA production.
How to Get Vitamin B12
Most people get enough B12 through their diet. Foods like eggs, dairy, fish, poultry, and meat are excellent sources. Fortified foods, including some plant-based milks, cereals, and nutritional yeast, also help. Adults generally need 2.4 mcg per day, though requirements increase during pregnancy (2.6 mcg) and breastfeeding (2.8 mcg).
Because B12 is water-soluble, your body doesn’t store large amounts, so daily intake is essential. Some people may have difficulty absorbing enough, especially those with conditions like pernicious anemia, Crohn’s disease, celiac disease, or those taking medications such as metformin or acid-reducing drugs. Vegetarians and vegans may also be at higher risk.
Signs of Vitamin B12 Deficiency
Deficiency can develop slowly and be overlooked. Watch for:
- Fatigue or weakness
- Tingling or numbness in hands and feet
- Difficulty walking or balance issues
- Irritability or mood changes
- Loss of appetite and weight loss
- A smooth or tender tongue
If you experience these symptoms, your healthcare provider may order a blood test to confirm your B12 levels.
Can B12 Protect Against Disease?
Research suggests B12 helps break down homocysteine, a protein linked to heart disease, stroke, and cognitive decline when present in high levels. While B12 supplements aren’t routinely recommended to prevent these conditions, some patients at higher risk may benefit.
When Is the Best Time to Take Vitamin B12?
The most important thing is consistency. Since B12 isn’t stored in the body, regular daily intake is crucial. For best absorption, many experts recommend taking it in the morning, on an empty stomach, with water. Some people also report feeling more energized when they take it earlier in the day.
Precautions with Supplements
If you’re on medication, check with your healthcare provider before starting a B12 supplement. Some drugs (including acid reducers, seizure medications, metformin, and certain chemotherapy or cholesterol-lowering drugs) can interfere with B12 absorption.
The Bottom Line
If your doctor has recommended vitamin B12 supplements, consistency is key. Keep your supplements somewhere visible (like near your toothbrush) so they become part of your daily routine. At Centrum Pharmacy, we not only help you choose the right vitamin B12 formulation (pill, chewable, or sublingual), but we also review your medications to prevent interactions and ensure safe, effective use.
Talk to our pharmacy team today about whether vitamin B12 supplements are right for you.
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Disclaimer: The medical information on this site is provided as an information resource only and is not to be used or relied on for any diagnostic or treatment purposes. This information does not substitute for professional diagnosis and treatment. Please do not initiate, modify, or discontinue any treatment, medication, or supplement solely based on this information. Always seek the advice of your healthcare provider first. Full Disclaimer.
