NOW Foods Liquid D-3 & MK-7

Name: NOW Foods Liquid D-3 & MK-7
Brand: NOW Foods
SKU: 733739003799
Price: 19.99 GBP
Availability: InStock

Brands: NOW Foods

£19.99

NOW Foods' take on a daily dose of vitamin D and vitamin K2, in a liquid format that is easy to keep to day after day.

Why people take it

Vitamin D contributes to the normal function of the immune system
Vitamin D contributes to the maintenance of normal bones and teeth
Vitamin D contributes to normal muscle function
Vitamin D contributes to normal absorption and utilisation of calcium and phosphorus
Vitamin K contributes to the maintenance of normal bones
Vitamin K contributes to normal blood clotting

How to use

Take as directed on the pack, ideally with food and at the same time each day.

Good to know

Format: liquid
Caffeine free

A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.

Quantity

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Categories : Caffeine-Free Supplements, Everyday Health Supplements, NOW Foods, Vitamin D Supplements, Vitamins & Supplements

SKU: 733739003799

At a glance

£0.12

per daily dose

Strong

evidence for vitamin d3

Our honest take

Mint-flavoured liquid drops: 5 drops give 62.5 µg (2,500 IU) of vitamin D3 and 100 µg of vitamin K2 as MK-7 (MenaQ7), and the bottle holds about 163 doses. The vitamin D is above what most people need (the NHS suggests 10 µg in autumn and winter) but within the 100 µg upper level. The vitamin D3 comes from lanolin, so it is not vegan. Evidence that adding K2 to vitamin D helps healthy people is still limited.

You want vitamin D and K2 in a liquid you can add to a drink
You have been advised to take a higher vitamin D dose
You take warfarin, heparin or another anticoagulant
You only need the NHS-suggested 10 µg of vitamin D: plain D3 is cheaper
You are vegan: the vitamin D3 is from lanolin (sheep's wool)

The science

Vitamin D3· evidence: Strong

Vitamin D3 (cholecalciferol) is the form the skin makes from sunlight. In the UK there is not enough strong sunlight from about October to March, so many people have low levels over winter. Good-quality trials show supplements reliably raise blood levels and correct deficiency, and that matters for bone health in people who are low.

The NHS advises everyone to consider 10 µg (400 IU) a day in autumn and winter, and all year round for people who get little sun, cover their skin, have darker skin or live in care homes. For people who already have adequate levels, large trials have not shown that extra vitamin D prevents falls, fractures or other illness.

In short: a modest daily dose is sensible and cheap insurance for most UK adults in winter. Very high doses are not better and should only be taken on medical advice.

Authorised health claim
Vitamin D contributes to the normal function of the immune system. Vitamin D contributes to the maintenance of normal bones. Vitamin D contributes to the maintenance of normal muscle function. Vitamin D contributes to the maintenance of normal teeth. Vitamin D contributes to normal absorption/utilisation of calcium and phosphorus. (Applies where a daily dose gives at least 15% of the NRV, i.e. 0.75 µg.)

Typical dose: 10 µg (400 IU) a day is the NHS advice for adults and children over 1. Doses of 25 µg (1,000 IU) to 50 µg (2,000 IU) are common and safe for adults. Babies under 1 need 8.5 to 10 µg a day unless they have more than 500 ml of formula.

Safety: Do not take more than 100 µg (4,000 IU) a day without medical advice (FSA/NHS); children aged 1 to 10 should not have more than 50 µg, and babies under 1 no more than 25 µg. Long-term very high intake can raise blood calcium, which can damage the kidneys and heart. People with kidney disease, sarcoidosis or high calcium levels should speak to their GP first.

Research we looked at:
NHS. Vitamin D. nhs.uk/conditions/vitamins-and-minerals/vitamin-d
Scientific Advisory Committee on Nutrition (SACN). Vitamin D and Health. 2016.
EFSA NDA Panel. Scientific opinion on the tolerable upper intake level for vitamin D. EFSA Journal 2023;21(8):8145.
Bolland MJ, Grey A, Avenell A. Effects of vitamin D supplementation on musculoskeletal health: a systematic review, meta-analysis, and trial sequential analysis. Lancet Diabetes Endocrinol 2018;6(11):847-858.

Vitamin K2 (MK-7)· evidence: Limited

Vitamin K2 (menaquinone, usually as MK-7 in supplements) is one of the forms of vitamin K. The body needs vitamin K to make proteins involved in blood clotting and bone. Most adults get enough vitamin K from green vegetables, vegetable oils and some fermented foods, and true deficiency is rare in healthy adults.

Vitamin K2 is often sold alongside vitamin D3 on the idea that it helps direct calcium into bone. Trials of K2 on bone density and fractures are small and mixed, and the effect in well-nourished people is uncertain. Claims about arteries or heart health are not established.

Adding K2 to a vitamin D supplement is reasonable but not necessary for most people. It mainly adds cost.

Authorised health claim
Vitamin K contributes to normal blood clotting. Vitamin K contributes to the maintenance of normal bones. (Applies where a daily dose gives at least 15% of the NRV, i.e. 11.25 µg.)

Typical dose: Adults need about 1 µg per kg of body weight a day (around 70 µg for a 70 kg adult), mostly met by diet. Supplements usually give 45 to 200 µg of MK-7.

Safety: Vitamin K can stop warfarin and similar anticoagulants (vitamin K antagonists) working properly. Anyone on warfarin must not take vitamin K supplements without talking to their GP or anticoagulant clinic. The FSA notes that 1 mg or less a day from supplements is unlikely to cause harm in other people.

Research we looked at:
NHS. Vitamin K. nhs.uk/conditions/vitamins-and-minerals/vitamin-k
EFSA NDA Panel. Dietary reference values for vitamin K. EFSA Journal 2017;15(5):4780.
Mott A, Bradley T, Wright K, et al. Effect of vitamin K on bone mineral density and fractures in adults: an updated systematic review and meta-analysis of randomised controlled trials. Osteoporos Int 2019;30(8):1543-1559.

Ingredients & nutrition

Per daily dose (5 drops, about 0.18 ml): vitamin D3 (cholecalciferol, from lanolin) 62.5 µg / 2,500 IU (1,250% NRV); vitamin K2 (MenaQ7 MK-7) 100 µg (133% NRV). 30 ml bottle, about 163 daily doses.

Ingredients: medium-chain triglyceride oil, sunflower oil, safflower oil, vitamin E, peppermint oil, rosemary extract, vitamin D3, vitamin K2. Suitable for vegetarians, not vegans.

Always check the pack you receive, as manufacturers sometimes update recipes.

How to use

Adults only: shake well and take 5 drops a day, directly or in a drink, ideally with a meal containing some fat. Do not exceed the stated daily dose. Not for infants or children.

Price per dose & how it compares

Product	Size	Price	Per daily dose
This product	30 ml	£19.99	£0.12
Carlson Labs Super Daily D3 + K2		from £29.42	£0.16
Doctor's Best Natural Vitamin K2 MK7 with MenaQ7 plus D3		from £26.99	£0.45
Allnutrition Vit D3 4000 + K2 Drops		from £8.39	£0.02

Cost per daily dose lets you compare packs of different sizes fairly.Worked out from our current prices.

Food supplements should not replace a varied, balanced diet and healthy lifestyle. General information, not medical advice. Speak to your GP or pharmacist first if you are pregnant or breastfeeding, have a medical condition or take medication.