The Anonymous Widower

Are We Not Getting Enough B12 In The UK?

I asked Google AI this question and received this answer.

While most people in the UK who consume a balanced diet containing meat, fish, and dairy get enough vitamin B12, a significant minority—estimated at around 6% of adults under 60 and up to 20% of those over 60—are estimated to be deficient or have low levels. The prevalence of deficiency increases with age, with up to 1 in 10 people over the age of 75 affected.

Here is a breakdown of the situation regarding B12 in the UK:

Who is Most at Risk?

Older Adults: The highest risk group is people over 60, due to reduced stomach acid leading to food-bound vitamin B12 malabsorption.

Vegans and Vegetarians: Because B12 is found naturally in animal-derived foods, those on plant-based diets are at higher risk if they do not

consume fortified foods (such as plant-based milks, nutritional yeast, or breakfast cereals) or take supplements.

People with Absorption Issues: The most common cause of severe deficiency in the UK is pernicious anaemia, an autoimmune condition that stops the body from absorbing B12, rather than a lack of dietary intake.

Individuals on Long-Term Medication: Certain drugs, including Metformin (for diabetes) and proton pump inhibitors (PPIs for acid reflux), can impair B12 absorption.

Is the UK Recommendation Too Low?
The UK government recommends an intake of 1.5 micrograms (μg) a day for adults. However, some experts argue this is too low, noting that the European Food Safety Authority (EFSA) suggests 4 μg/day, and that 4 to 20 μg/day might be more appropriate to prevent deficiency.

Symptoms of Deficiency

If you are not getting enough B12, you may experience:

• Extreme tiredness or fatigue
• Pins and needles (paraesthesia)
• Muscle weakness
• Cognitive changes, such as problems with memory or understanding
• A sore, red tongue

Recommendations

Dietary Sources: Eggs, meat, fish, shellfish, and dairy products are excellent sources.

 

Fortified Foods & Supplements:

Vegans are advised to eat foods fortified with B12 daily or take a supplement (such as 10-50 micrograms daily)

 

• Check with a GP: If you suspect a deficiency, a blood test is required, particularly if you are vegan, older, or have digestive issues, as long-term deficiency can cause irreversible damage.

February 17, 2026 - Posted by AnonW | Food, Health