SPRING SALE GET 10% OFF WITH VOUCHER CODE: SPRING10

Vitamin B12 1000µg (120 Tablets)
Vitamin B12 1000µg (120 Tablets) - Image 2
BLOOD SUGAR CONTROL

Vitamin B12 1000µg (120 Tablets)

Vitamin B ComplexAll Vitamins & MineralsVitamin B
High-strength vitamin B12 tablets supporting energy, brain function, and red blood cell formation with convenient long-term daily supply.
  • Supports energy metabolism and reduces fatigue
  • Contributes to normal nervous system function
  • Supports red blood cell formation
  • Helps maintain cognitive function and focus
  • Ideal for vegans and those with low B12 intake
  • Supports mood and overall wellbeing
  • 120 tablets for extended daily use
Buy 1 Bag
£6.95
£6.95
5% OFF
Buy 2 Bags
£6.95
£6.60
10% OFF
Buy 3 Bags
£6.95
£6.26
Select a quantity

Gluten-Free

GMP

Non-GMO

Made in UK

Nutrivolv Vitamin B12 1000mcg provides a high-strength dose of this essential vitamin, designed to support energy levels, brain function, and overall wellbeing. Vitamin B12 plays a crucial role in red blood cell formation and the normal function of the nervous system, making it vital for reducing tiredness and maintaining mental clarity. It is especially important for individuals following plant-based diets, as B12 is primarily found in animal-based foods. This convenient tablet format, with 120 tablets per pack, offers long-term support and value, making it easy to maintain consistent intake. Ideal for anyone experiencing low energy levels or looking to support cognitive performance and overall vitality. Manufactured in the UK to high-quality standards, this vegan-friendly supplement supports sustained energy, focus, and wellbeing.

Frequently Asked Question

Vitamin B12 is an essential nutrient the body cannot produce on its own and must obtain from food or supplementation. It plays a central role in four critical functions: forming healthy red blood cells, maintaining the myelin sheath that protects nerve fibres, supporting brain and cognitive function, and converting food into energy. Unlike most vitamins, B12 is found almost exclusively in animal-derived foods such as meat, fish, dairy, and eggs, which makes it the nutrient most commonly deficient in people who follow vegan or vegetarian diets. Even among meat eaters, absorption declines with age, making it one of the most important vitamins to monitor throughout life.
This is one of the most common questions about B12 supplements and the answer comes down to how the body absorbs it. When B12 is consumed in food, absorption is highly efficient because it binds to a protein called intrinsic factor produced in the stomach. However, oral B12 supplements are absorbed through a different, much less efficient mechanism called passive diffusion, where only around 1 to 2 percent of the dose actually crosses into the bloodstream. A 1000µg tablet delivers enough B12 through this passive route to meaningfully raise blood levels despite the low absorption rate. High-dose oral B12 is a well-established and safe approach to maintaining adequate levels.
Several groups face a meaningfully higher risk. Vegans and vegetarians are the most commonly cited because B12 is almost entirely absent from plant-based foods. Older adults are also at significant risk because the production of intrinsic factor in the stomach declines with age, reducing how efficiently dietary B12 is absorbed. People taking metformin for type 2 diabetes or long-term proton pump inhibitors such as omeprazole are also affected, as both medications interfere with B12 absorption. Those with conditions affecting the gut lining, such as Crohn’s disease or coeliac disease, may also struggle to absorb adequate amounts from food alone.
B12 deficiency develops slowly and the symptoms are easy to attribute to other causes, which is why it is often missed for months or years. The most common signs include persistent fatigue and weakness, tingling or numbness in the hands and feet, difficulty with memory or concentration, low mood or depression, pale or yellowish skin, a sore or swollen tongue, and mouth ulcers. In more advanced cases it can lead to megaloblastic anaemia and irreversible nerve damage. If you suspect deficiency, a simple blood test from your GP can confirm your levels before starting supplementation.
The page specifically identifies this product as ideal for vegans and those with low B12 intake. B12 is the one nutrient that cannot be reliably obtained from a well-planned plant-based diet alone, and supplementation is recommended for all vegans by nutrition organisations including the NHS. For the most accurate information on the specific tablet composition and whether any excipients in this product are vegan-friendly, check the product label or contact Nutrivolv directly at nutrivolv.com.
The B Complex covers all eight B vitamins in one tablet and is suited to people who want broad B vitamin support across energy, metabolism, mood, and nerve function. This standalone B12 at 1000µg is for people who specifically need to address a B12 shortfall, whether because of diet, age, medication, or a diagnosed deficiency confirmed by a blood test. The standalone B12 delivers a significantly higher dose of B12 per tablet than would be found in a typical B complex. Some people take both: a B complex for general coverage and a separate high-dose B12 for targeted support, though you should check combined totals with your GP if you are doing this.
Take one tablet daily, ideally in the morning with or without food. B12 is water-soluble and absorbs reasonably well regardless of whether food is present, but morning suits most people as B12 supports energy metabolism and alertness. Some people prefer to let B12 tablets dissolve under the tongue, which allows a small amount to be absorbed directly through the mucous membrane before swallowing, though the primary absorption still occurs in the gut. The most important factor is taking it consistently every day rather than sporadically.
This depends on your starting point. People who are genuinely deficient often begin to feel improvements in energy, concentration, and mood within two to four weeks of consistent supplementation as blood levels start to rise. Neurological symptoms such as tingling can take longer to improve and may require several months of sustained supplementation. People who are not particularly deficient may notice subtler effects. If symptoms are significant, a blood test before and after supplementation is the most reliable way to confirm it is working.
B12 is one of the safer vitamins to supplement at high doses. It is water-soluble, meaning excess amounts are excreted through urine rather than stored in the body, and there is no established upper tolerable limit for oral B12 supplementation because toxicity has not been demonstrated in the research literature. Very high intakes over prolonged periods are generally considered safe for most adults. As with any supplement, if you are pregnant, breastfeeding, or managing a health condition, check with your GP before use.
At one tablet daily, the 120-tablet pack provides a four-month supply priced at £6.95, which works out at around 6p per day. For a high-strength 1000µg B12 supplement with that many tablets, that represents excellent value in the UK market. Most high-dose B12 products at this strength sell for considerably more for the same or fewer tablets, making this a practical long-term option for anyone who needs consistent daily B12 support.