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Vitamin B3, also known as niacin, helps your body convert the food you eat into usable energy. It contributes to normal energy-yielding metabolism, the reduction of tiredness and fatigue, the normal function of the nervous system, and the maintenance of normal skin – a lot of everyday groundwork for one nutrient.

 

 

Niacin is water-soluble, so your body doesn't store it and relies on a regular intake. Your body can also make a small amount itself from the amino acid tryptophan, but food is the main source – and niacin is found in a wide range of everyday foods, from meat, poultry and fish to nuts, seeds, legumes and fortified cereals. Most people get plenty from a balanced diet, though a supplement can help top up a limited one.

Read the full explainer: Vitamin B3, explained →

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VIRIDIAN High Twelve™ Vitamin B12 With B-Complex Veg Caps 90 capsules
£21.00 Unit price 23.3p peritem
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VIRIDIAN Co-Enzyme B Complex 30 capsules
£21.25 Unit price 70.8p peritem
YOUTH & EARTH NMN 250mg 60 capsules
£25.00 Unit price 41.7p peritem
PURE ENCAPSULATIONS Vitamin B12 Liquid 30ml
£23.75 Unit price £791.67 perlitre
VIRIDIAN Biotin 2500µg 90 capsules
£16.50 Unit price 18.3p peritem
NATROCEUTICS Activated Vitamin B Complex 30 Capsules
£26.00 Unit price 86.7p peritem
TERRANOVA Folate (Methyfolate) 400µg Complex 100 capsules
TERRANOVA Folate (Methyfolate) 400µg Complex 100 capsules
£25.25 Unit price 25.3p peritem
PURE ENCAPSULATIONS B12 Folate 60 Capsules
£24.00 Unit price 40p peritem
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WELL.ACTUALLY. Vitamin B Complex - Liposomal Liquid High Absorption 250ml
Regular price£26.40£33.00 Unit price £105.60 perlitre
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COYNE HEALTHCARE Vitamin B Complex 30 Capsules
Regular price£24.00£30.00 Unit price 80p peritem
TERRANOVA Advanced Synergy B-Complex 100 capsules
£38.50 Unit price 38.5p peritem
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SOLGAR Biotin 5000µg 100 capsules
£39.00 Unit price 39p peritem
TERRANOVA Vitamin B12 500µg 100 capsules
TERRANOVA Vitamin B12 500µg 100 capsules
£23.75 Unit price 23.8p peritem
BIOCARE Nutrisorb® Methylfolate 15ml
£25.50 Unit price £1,700.00 perlitre
LAMBERTS Vitamin B12 100µg 100 tablets
LAMBERTS Vitamin B12 100µg 100 tablets
£9.00 Unit price 9p peritem
SOLGAR Vitamin B6 50mg 100 tablets
SOLGAR Vitamin B6 50mg 100 tablets
£9.00 Unit price 9p peritem
NATURE'S ANSWER Vitamin B12 60ml
NATURE'S ANSWER Vitamin B12 60ml
£23.00 Unit price £383.33 perlitre
PURE ENCAPSULATIONS Biotin 8mg 60 Capsule
£16.00 Unit price 26.7p peritem
PURE ENCAPSULATIONS B-Complex Plus 60 Capsules
£30.75 Unit price 51.3p peritem
BETTERYOU Boost Vitamin B12 Oral Spray 25 ml
£12.50 Unit price £500.00 perlitre

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