Vitamin B12 is a nutrient the body can’t produce on its own, meaning you must obtain it from food or supplements. It’s especially important for energy production, red blood cell formation, and neurological health. Studies suggest that nearly 40% of North Americans are deficient in this essential vitamin, with rates even higher among those with conditions like Chronic Fatigue Syndrome or Fibromyalgia.
Testing for B12 Deficiency
Determining if you have a B12 deficiency isn’t always straightforward. While serum B12 tests are commonly used, they don’t measure how well your body is utilizing the vitamin. For a more accurate diagnosis, ask your doctor about an Intracellular B12 test. If that’s unavailable, tests for Methylmalonic Acid (MMA) and Homocysteine levels can offer additional insights.
Pernicious Anemia
This autoimmune condition damages stomach cells responsible for producing intrinsic factor, a protein needed for B12 absorption. Without intrinsic factor, your body struggles to absorb B12 from food, leading to a deficiency.
Leaky Gut Syndrome
Conditions that disrupt the gut lining, such as gluten sensitivity, bacterial infections, or excessive sugar intake, can impair your ability to absorb nutrients, including B12. Addressing gut health through dietary changes can significantly improve absorption.
Poor Gut Microbiome
An imbalance of gut bacteria can interfere with nutrient absorption. To maintain a healthy microbiome, reduce sugar intake and increase probiotic-rich foods like yogurt, sauerkraut, and kefir.
Medications for Heartburn
Many heartburn medications reduce stomach acid, which is essential for breaking down and absorbing B12. If you’re experiencing persistent heartburn, address the root cause rather than relying solely on medication.
Chemotherapy Side Effects
Chemotherapy treatments can damage the gut lining, making it harder for your body to absorb essential vitamins like B12 and folic acid. High-quality supplements may help mitigate these effects.
Dietary Solutions for B12
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