Methylated B Vitamins: What the Label Actually Means

Eight vitamins, one essential job

There are eight B vitamins: thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), vitamin B6, biotin (B7), folate (B9) and vitamin B12. Rather than being a source of energy themselves, they act as coenzymes, the helper molecules your cells' enzymes rely on to turn food into usable energy and keep core processes running^[1].

That's why their authorised claims are so closely linked. Thiamin, riboflavin, niacin, pantothenic acid, vitamin B6, biotin and vitamin B12 each contribute to normal energy-yielding metabolism. Riboflavin, niacin, pantothenic acid, vitamin B6, folate and vitamin B12 each contribute to the reduction of tiredness and fatigue^[2].

The B vitamins also work as a team. Riboflavin is needed to convert vitamin B6 into its active coenzyme form^[3], and folate, vitamin B6 and vitamin B12 work together in the same pathway, each contributing to normal homocysteine metabolism^[2]. Researchers have argued that adequate levels of all eight matter, rather than focusing on one or two^[1]. That's why Scōp includes the full set.

What "methylated" means

A methyl group is a small cluster of one carbon and three hydrogen atoms. Two B vitamins can be supplied in forms that already carry one, which is what "methylated" refers to on a label:

• Folate as L-methylfolate (L-5-methyltetrahydrofolate), the main form of folate that circulates in the blood^[4].
• Vitamin B12 as methylcobalamin, one of the two forms of B12 that the body's enzymes use directly^[5].

Scōp uses both. It also goes a step further with two more B vitamins, supplying them in their active coenzyme forms, the forms the body puts to work:

• Riboflavin as riboflavin-5′-phosphate (FMN), one of riboflavin's two coenzyme forms^[3].
• Vitamin B6 as pyridoxal 5′-phosphate (P-5-P), the active coenzyme form of B6. Most supplements use pyridoxine hydrochloride instead^[6].

Thiamin, niacin (as nicotinamide), pantothenic acid and biotin complete the complex.

Folate: why the form matters

Folic acid is the synthetic form of folate found in fortified foods and many supplements. Before the body can use it, folic acid has to be converted by an enzyme called dihydrofolate reductase^[4]. Research on human liver tissue found that this enzyme works relatively slowly in people, and that its activity varies considerably from one person to the next^[7].

L-methylfolate is already in the form that circulates in the body, so no conversion step is needed. The European Food Safety Authority (EFSA) recognises calcium L-methylfolate, the form used in Scōp, as a bioavailable source of folate^[8]. Folate contributes to the reduction of tiredness and fatigue and to normal psychological function^[2].

If you're pregnant or trying for a baby, the NHS recommends a dedicated 400 µg folic acid supplement until 12 weeks of pregnancy, so please follow that guidance and speak to your GP or midwife^[9].

Vitamin B12: methylcobalamin

Most B12 supplements use cyanocobalamin, a stable synthetic form that the body converts into the two coenzyme forms it uses: methylcobalamin and adenosylcobalamin^[5]. Scōp supplies B12 directly as methylcobalamin, a form the body already uses, which works in the same pathway as L-methylfolate.

Vitamin B12 contributes to normal energy-yielding metabolism, to the reduction of tiredness and fatigue and to normal functioning of the nervous system^[2].

Why 900 µg?

The body absorbs B12 through a carrier protein that can only handle small amounts at a time. Beyond that, a much smaller share of each dose is absorbed^[10]. That's why B12 is typically supplied in generous amounts, and why its % NRV figures often look high on supplement labels. No upper safety limit has been set for vitamin B12^[11].

Especially relevant for vegetarians

Vitamin B12 occurs naturally only in animal foods^[9]. That makes it particularly important for vegetarians and vegans, along with older adults and people taking certain medicines such as metformin or acid-reducing medicines^[10]. Scōp is suitable for vegetarians and provides 900 µg of vitamin B12 as methylcobalamin in every serving. If you have any concerns about your B12 levels, your GP can arrange a simple blood test.

What's in every scoop

NRV = Nutrient Reference Value.

Understanding the daily amounts

Scōp declares every B vitamin dose. Where EFSA has set an adult upper intake level, consider the amount in your daily serving alongside the other sources covered by that limit:

• Vitamin B6: 10 mg, within EFSA's adult upper limit of 12 mg a day^[12]. Because that limit covers all sources, we'd recommend not taking Scōp alongside other supplements that contain vitamin B6.
• Folate: 400 µg, well within the 1,000 µg adult upper limit^[11].
• Niacin: 48 mg as nicotinamide, well within the 900 mg adult upper limit^[11]. Nicotinamide is a different form from nicotinic acid, the form the NHS links to skin flushing at high doses^[9].

One handy tip: biotin can affect the results of some laboratory tests, so if you're having blood tests, let your doctor know you take a supplement containing biotin^[13].

The bottom line

The form of a B vitamin tells you how much work your body has to do before it can use it. Scōp provides all eight B vitamins, with folate and B12 in methylated forms and B2 and B6 in their active coenzyme forms, all at clearly listed doses in one daily scoop. Vitamin B12 and folate contribute to the reduction of tiredness and fatigue, and thiamin, riboflavin, niacin, pantothenic acid, vitamin B6, biotin and vitamin B12 contribute to normal energy-yielding metabolism.

All health claims in this article use authorised wording from the Great Britain Nutrition and Health Claims Register. This article is for general information and is not medical advice.

Common questions

What does “methylated” mean on a B vitamin label?

A methylated vitamin is supplied in a form that already carries a methyl group, a small cluster of one carbon and three hydrogen atoms. In Scōp, folate is supplied as L-methylfolate and vitamin B12 as methylcobalamin. Riboflavin (B2) and vitamin B6 are also supplied in their active coenzyme forms, riboflavin-5′-phosphate and pyridoxal 5′-phosphate.

What is the difference between L-methylfolate and folic acid?

Folic acid is a synthetic form of folate that the body must convert, using the enzyme dihydrofolate reductase, before it can be used. L-methylfolate is already the main form of folate circulating in the blood, so no conversion step is needed. EFSA recognises calcium L-methylfolate as a bioavailable source of folate. Folate contributes to the reduction of tiredness and fatigue. If you are pregnant or trying for a baby, follow NHS advice to take a 400 µg folic acid supplement.

What is methylcobalamin?

Methylcobalamin is one of the two coenzyme forms of vitamin B12 that the body uses. Scōp provides 900 µg of vitamin B12 as methylcobalamin per serving. Vitamin B12 contributes to normal energy-yielding metabolism, to the reduction of tiredness and fatigue and to normal functioning of the nervous system.

Why does Scōp contain 900 µg of vitamin B12?

The body absorbs vitamin B12 through a carrier protein that handles only small amounts at a time, so a smaller share of larger doses is absorbed. That is why B12 is typically supplied in generous amounts, and why its % NRV figure looks high on labels. No upper safety limit has been set for vitamin B12.

Is the vitamin B6 in Scōp within safe limits?

Yes. Scōp provides 10 mg of vitamin B6 as pyridoxal 5′-phosphate, within EFSA’s adult upper limit of 12 mg a day. Because that limit covers all sources, we recommend not taking Scōp alongside other supplements that contain vitamin B6.

Is Scōp a good choice for vegetarians?

Scōp is suitable for vegetarians. Vitamin B12 occurs naturally only in animal foods, so it is particularly relevant for vegetarians, and Scōp provides 900 µg of vitamin B12 as methylcobalamin per serving. Vitamin B12 contributes to the reduction of tiredness and fatigue.

Sources

1. Kennedy DO. B Vitamins and the Brain: Mechanisms, Dose and Efficacy — A Review. Nutrients. 2016;8(2):68. doi:10.3390/nu8020068
2. Department of Health and Social Care. Great Britain Nutrition and Health Claims (NHC) Register. gov.uk
3. NIH Office of Dietary Supplements. Riboflavin: Fact Sheet for Health Professionals. ods.od.nih.gov
4. NIH Office of Dietary Supplements. Folate: Fact Sheet for Health Professionals. ods.od.nih.gov
5. Obeid R, Fedosov SN, Nexo E. Cobalamin coenzyme forms are not likely to be superior to cyano- and hydroxyl-cobalamin in prevention or treatment of cobalamin deficiency. Mol Nutr Food Res. 2015;59(7):1364–1372. doi:10.1002/mnfr.201500019
6. NIH Office of Dietary Supplements. Vitamin B6: Fact Sheet for Health Professionals. ods.od.nih.gov
7. Bailey SW, Ayling JE. The extremely slow and variable activity of dihydrofolate reductase in human liver and its implications for high folic acid intake. Proc Natl Acad Sci USA. 2009;106(36):15424–15429. doi:10.1073/pnas.0902072106
8. EFSA Panel on Nutrition, Novel Foods and Food Allergens. Calcium L-methylfolate as a source of folate added for nutritional purposes to infant and follow-on formula, baby food and processed cereal-based food. EFSA Journal. 2020. doi:10.2903/j.efsa.2020.5947
9. NHS. Vitamins and minerals: B vitamins and folic acid. nhs.uk
10. NIH Office of Dietary Supplements. Vitamin B12: Fact Sheet for Health Professionals. ods.od.nih.gov
11. EFSA. Overview on Tolerable Upper Intake Levels (summary report). 2024. efsa.europa.eu
12. EFSA Panel on Nutrition, Novel Foods and Food Allergens. Scientific opinion on the tolerable upper intake level for vitamin B6. EFSA Journal. 2023;21(5):8006. doi:10.2903/j.efsa.2023.8006
13. NIH Office of Dietary Supplements. Biotin: Fact Sheet for Health Professionals. ods.od.nih.gov