21st Century B12 1000mcg Prolonged Release Tablets, 110 Tablets (3 Pack)

Key Benefits of Vitamin B12 for Your Health

Discover 21St Century B-12 — Adequate intake of vitamin B12 (cobalamin) contributes to several normal bodily functions. It supports normal energy-yielding metabolism, helping your body convert food into usable energy. B12 also contributes to the normal functioning of the nervous system and to normal red blood cell formation. Additionally, it plays a role in normal DNA synthesis and cell division. By helping to maintain normal homocysteine levels, B12 supports cardiovascular health. For those with low levels, supplementation can help prevent fatigue, weakness, and megaloblastic anaemia.

Who Should Consider a Vitamin B12 Supplement?

Certain groups are more likely to need extra B12. Vegetarians and vegans are at risk because B12 is naturally found only in animal products like meat, fish, eggs, and dairy. Older adults often have reduced absorption due to lower stomach acid production. Individuals with digestive conditions such as Crohn’s disease, coeliac disease, or atrophic gastritis may also absorb less B12 from food. Those who have had gastrointestinal surgery, including weight loss procedures, may require supplementation. People taking proton pump inhibitors or other acid-reducing medications might also benefit. Pregnant and breastfeeding women, especially if following a plant-based diet, should ensure adequate intake for foetal and infant development.

What Is Vitamin B12 and Why Do You Need It?

Vitamin B12, also known as cobalamin, is a water-soluble vitamin essential for many critical functions. It is required for the normal operation of the brain and nervous system, and for the production of red blood cells. B12 is also involved in DNA synthesis and energy production at the cellular level. A deficiency can cause fatigue, weakness, constipation, loss of appetite, weight loss, and megaloblastic anaemia. Neurological symptoms may include numbness and tingling in the hands and feet, balance problems, memory loss, and confusion. The recommended daily intake for adults is about 2.4 micrograms, but many individuals—especially older adults and those on plant-based diets—may need higher amounts from supplements.

How to Choose the Best B12 Supplement

When selecting a B12 supplement, consider the form, dosage, and delivery method. Common forms include cyanocobalamin and methylcobalamin; this product contains cyanocobalamin, which is well-absorbed. The prolonged release design releases B12 gradually, helping to maintain steady blood levels. Each tablet provides 1000 mcg of B12—a high-dose suitable for those with absorption issues or increased needs. The 110-tablet bottle offers a convenient supply, and the 3-pack provides excellent value. 21st Century is a trusted name in dietary supplements.

Product Features

• High potency: 1000 mcg of vitamin B12 per tablet
• Prolonged release formula for steady absorption
• Convenient 110-tablet bottle (3-pack total of 330 tablets)
• Easy-to-swallow tablets
• Suitable for daily uses

Recommended Dosage and How to Take B12

The typical dosage for adults is 1000 mcg per day, especially for those with deficiency or absorption concerns. Swallow the prolonged release tablet whole with water, preferably with a meal to enhance absorption. Do not crush or chew. Consistency is important for maintaining optimal B12 levels. Always consult a health care professional before starting any new supplement, particularly if you have a medical condition or are taking medication.

Frequently Asked Questions

Can you take too much B12? Vitamin B12 is water-soluble, so excess amounts are excreted in urine. High doses are generally considered safe, but it is best to stick to recommended dosages.

Is it necessary to take B12 if I eat meat? Some meat-eaters may still have low levels due to poor absorption, especially older adults. Testing your levels can help determine if you need supplementation.

Are there any side effects? B12 supplements are well tolerated. Rare side effects may include mild diarrhoea, itching, or a feeling of swelling.

This product is a food supplement and should not be used as a substitute for a varied diet. Do not exceed the recommended dose. If you are pregnant, breastfeeding, or have a medical condition, consult your doctor before uses.