Dangerously low B12 causes severe fatigue, neurological issues like numbness/tingling (pins and needles), balance problems, memory loss, confusion, depression, and a smooth, sore tongue (glossitis), stemming from its role in nerve health and red blood cell production, with severe cases potentially leading to heart failure or permanent nerve damage if untreated. Symptoms develop slowly but worsen, affecting energy, mood, cognition, and physical coordination.
Safety and side effects
Taking doses of vitamin B-12 might cause: Headache. Nausea. Diarrhea.
No significant interactions are reported between amlodipine and Vitamin B12 specifically, but multivitamins with minerals might decrease amlodipine's effectiveness, so always tell your doctor about all supplements, including B12, as they can affect your blood pressure and medication response. While B12 itself seems safe, other supplements like St. John's Wort can interact, and potential B vitamin effects on blood pressure meds aren't fully understood, making professional advice crucial.
B vitamins support the health of the soft tissues in the mouth. A lack of these vitamins can lead to mouth sores, inflammation of the tongue (glossitis), cracks at the corners of the mouth, and even bad breath. B12 deficiency, in particular, is associated with burning sensations in the mouth and a swollen, red tongue.
Intramuscular hydroxocobalamin and oral cyanocobalamin are treatment options for the management of clinically relevant vitamin B12 deficiency during pregnancy.
Infants born to vitamin B-12-deficient women may be at increased risk of neural tube closure defects, and maternal vitamin B-12 insufficiency (<200 pmol/L) can impair infant growth, psychomotor function, and brain development, which may be irreversible. However, the underlying causal mechanisms are unknown.
During pregnancy, ensuring adequate vitamin B12 levels is crucial for fetal development and maternal health. The third trimester is especially significant as the fetus undergoes rapid growth and development, necessitating adequate nutrient transfer from the mother.
Cutaneous manifestations associated with vitamin B12 deficiency are skin hyperpigmentation, vitiligo, angular stomatitis, and hair changes. A diagnosis of vitamin B12 deficiency is often overlooked in its early stages because these signs are not specific to vitamin B12 deficiency alone.
People need vitamin B-12 for the brain to work well. If not treated, vitamin B-12 deficiency can lead to issues with the nerves, brain or spinal cord. These might include lasting tingling in the hands and feet or trouble with balance.
Several research experiments have demonstrated how poor nutrition and vitamin deficiencies during tooth development can impair the structure of the tooth, and increase the risk of tooth decay. Tooth cavities, otherwise known as decay, are an effect of demineralised enamel and dentine.
Medications known to interact with Vitamin B12
Common side effects
Vitamin B12 itself is vital for energy production, red blood cell formation, and nerve function. Typically, B12 cocktails include a mix of B12 injections or supplements, coconut water, citrus fruits, and other natural ingredients known to aid in weight management.
The worst symptoms of B12 deficiency involve severe neurological damage, including severe memory loss, confusion, dementia, psychosis, hallucinations, balance problems, trouble walking, and irreversible nerve damage (neuropathy), alongside serious mental health issues like severe depression or irritability, with physical signs including extreme fatigue, pale skin, and a sore, smooth tongue. These severe cognitive and neurological issues are the most concerning because they can become permanent if left untreated.
Active B12 is generally considered to be the best form of B12 for seniors for several reasons. Metabolically active forms of B12 such as methylcobalamin and adenocobalamin require no further conversion in the body.
In fact, some studies have even suggested the opposite. For instance, one study noted that individuals who regularly took vitamin B12 supplements gained between 2.5 to 17 fewer pounds (1.2 to 7.7 kg) over a decade than those who didn't supplement.
B12 deficiency can trigger specific food cravings, most notably for meat, fish, or eggs, as the body seeks animal-based sources to replenish the vitamin, especially in those on vegetarian/vegan diets or older adults. While cravings for sugary or salty foods can also signal general B-vitamin issues, the distinct urge for protein-rich animal products is a key indicator, but professional testing is crucial for confirmation.
Loss of balance or unsteadiness
Losing your balance while walking, or feeling imbalanced, can result from: Vestibular problems. Abnormalities in your inner ear can cause a sensation of a floating or heavy head and unsteadiness in the dark. Nerve damage to your legs (peripheral neuropathy).
Both low vitamin D and calcium lead to increased muscle cramps. Vitamin B1 is also called thiamine. Your body uses it to produce energy. Low vitamin B1 can lead to a condition called beriberi, which causes leg pain and cramps.
Nerve Tingling or Numbness
Without B12, myelin deteriorates, leading to nerve damage. You might experience a sensation of “pins and needles” or feel as though certain body parts are falling asleep frequently, indicating that your nervous system may be struggling.
B12 (Cobalamin)
What it does: B12 is necessary for cell reproduction and can be applied topically for skin benefits because it reduces inflammation, dryness, and acne. It is sometimes used to treat conditions like psoriasis and eczema.
Numerous studies have found an association between vitamin deficiency and thyroid disorders (TD). The presence of anti-parietal cell antibodies is indicative of reduced ability to absorb vitamin B12.
Values of less than 160 pg/mL (118 pmol/L) are a possible sign of a vitamin B12 deficiency. People with this degree of deficiency are likely to have or develop symptoms. Deficiency should be confirmed by checking the level of a substance in the blood called methylmalonic acid.
Vitamin B12 doesn't directly cure plantar fasciitis, but a deficiency can worsen symptoms or mimic it by causing nerve issues (neuropathy) and weakening tissues, while supplementing may help if you're deficient by improving nerve health and healing, though the primary treatment remains stretching, orthotics, and rest to address the mechanical stress.