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21st Century 800 mcg Folic Acid Tablets

21st Century 800 mcg Folic Acid Tablets

Regular price £18.46 GBP
Sale price £18.46 GBP Regular price
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21st Century 800 mcg Folic Acid Tablets

Regular price £18.46
Sale price £18.46 Regular price
Save % Sold out
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Why Consider Folic Acid?

Folic acid, the synthetic form of vitamin B9, is a water-soluble vitamin that plays an essential role in DNA synthesis, red blood cell formation, and healthy cell division. This 800 mcg supplement provides a robust dose to help meet daily requirements, particularly for those with increased nutritional needs. Recognised by the European Food Safety Authority (EFSA), folic acid contributes to normal blood formation, normal homocysteine metabolism, and maternal tissue growth during pregnancy. It is a simple way to support your overall wellness, whether you're planning a family or simply looking after your heart health.

How Much Do You Need?

The recommended dietary allowance (RDA) for folic acid varies. For most adults, 400 mcg daily is sufficient, but during pregnancy the RDA rises to 600 mcg, with many health care professionals recommending 400–800 mcg from supplements. The 800 mcg dose in these tablets aligns with common antenatal advice. The tolerable upper intake level (UL) from supplements is 1,000 mcg per day; exceeding this may mask a vitamin B12 deficiency, especially in older adults.

Folic Acid or Methylfolate?

Standard folic acid is the most common supplement form and works well for the majority of people. However, individuals with MTHFR gene variants may have difficulty converting it to the active form (L-methylfolate). This product contains traditional folic acid (pteroylmonoglutamic acid), which is well-absorbed and supported by decades of research. If you have known methylation issues, you might opt for methylfolate instead, but for most, folic acid is perfectly effective.

Selecting a Quality Supplement

When choosing a folic acid supplement, look for one that undergoes third-party testing for purity and potency. These tablets are free from added sugar, yeast, preservatives, artificial flavours, and colours—making them a clean, straightforward choice. Their easy-to-swallow design encourages consistent use. 21st Century ensures each batch meets rigorous quality standards, giving you peace of mind with every tablet.

Safety and Side Effects

Folic acid is generally safe at recommended doses. Side effects are rare but may include mild nausea or digestive upset. High doses can mask a vitamin B12 deficiency, so it is important to monitor B12 levels, particularly for older adults. Do not exceed the UL without medical supervision. As with any supplement, consult your health care provider before starting a new regimen, especially if you have underlying health conditions or are taking medication.

Frequently Asked Questions

Can I take folic acid if I'm not pregnant?

Absolutely. Folic acid is beneficial for everyone as part of a balanced diet. It supports normal red blood cell production and cardiovascular health.

Is 800 mcg of folic acid too much?

800 mcg is within the safe range for most adults and is commonly recommended during pregnancy. The upper limit from supplements is 1,000 mcg per day.

Does this product contain gluten?

The product is free from yeast and preservatives but does not specify gluten-free status. Check the label on the bottle or contact the manufacturer for detailed allergen information.


This statement has not been evaluated by the Medicines and Health care products Regulatory Agency (MHRA) or the Food Standards Agency. This product is a food supplement and is not intended to diagnose, treat, , or prevent any disease. Food supplements should not be used as a substitute for a balanced diet and healthy lifestyle.

Worldwide Delivery

Orders are prepared with clear worldwide delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

UK Vitality Vitamins offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

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Supplement guide

21st Century 800 mcg Folic Acid Tablets at UK Vitality Vitamins

Why Consider Folic Acid?Folic acid, the synthetic form of vitamin B9, is a water-soluble vitamin that plays an essential role in DNA synthesis, red blood cell formation, and healthy cell division. This 800 mcg supplem...

Category Folic Acid Supplement
Delivery area Worldwide
Checkout Secure checkout
Brand 21st Century
Price £18.46
Availability In stock
21st century800 mcgantenatalblood healtheasy to swallowfolatefolic acidheart healthhomocysteineno artificial colours

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

What UK Vitality Vitamins shows before checkout

Every product page displays price, availability, variant choices, ingredient information, directions for use, allergen details, worldwide delivery expectations and secure checkout — so you can make an informed decision quickly.

Questions about 21st Century 800 mcg Folic Acid Tablets

Is 21st Century 800 mcg Folic Acid Tablets available with worldwide delivery?

Yes. This product is currently available on UK Vitality Vitamins with free worldwide delivery.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to basket area. Returns guidance is available on the product page and full terms are covered in the store returns policy.

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UK Vitality Vitamins product pages display ingredients, directions, allergen details and delivery information clearly — so you can compare supplements and make informed choices quickly.