Carlson Labs Super Daily D3 + K2

Name: Carlson Labs Super Daily D3 + K2
Brand: Carlson Labs
SKU: 088395105005
Price: 29.42 GBP
Availability: OutOfStock

Brands: Carlson Labs

£29.42

Carlson Labs' 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, Carlson Labs, Everyday Health Supplements, Vitamin D Supplements, Vitamins & Supplements

SKU: 088395105005

At a glance

£0.16

per daily dose

Strong

evidence for vitamin d3

Our honest take

A tiny bottle of concentrated drops: two drops give 50 µg (2,000 IU) of vitamin D3 and 45 µg of vitamin K2 as MK-7, and the bottle holds about 180 doses. The vitamin D is five times the 10 µg the NHS suggests in autumn and winter but within the 100 µg upper level. Evidence that adding K2 to vitamin D helps healthy people is still limited, so you are paying a premium for the combination.

You want vitamin D and K2 together in a couple of drops
You find capsules hard to swallow and want something you can add to food or a drink
You take warfarin or another anticoagulant: vitamin K affects how it works
You only need the NHS-suggested 10 µg of vitamin D: a basic D3 is much cheaper
You are pregnant or breastfeeding, without checking with your doctor

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 (2 drops, 0.056 ml): vitamin D3 (cholecalciferol) 50 µg / 2,000 IU (1,000% NRV); vitamin K2 (as MK-7) 45 µg (60% NRV). 10 ml bottle, about 180 daily doses.

Ingredients: medium chain triglyceride oil (coconut and palm source), antioxidant blend (d-alpha tocopherol, rosemary extract), vitamin D3, vitamin K2. Allergens: contains coconut.

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

How to use

Adults: 2 drops a day, straight or added to food or a drink. Do not exceed the stated daily dose. Do not use if you take warfarin, or are pregnant or breastfeeding, without speaking to your doctor first.

Price per dose & how it compares

Product	Size	Price	Per daily dose
This product	10 ml	£29.42	£0.16
Apollo's Hegemony Vitamin D3 with K2 MK7		from £21.69	–
Aventus Supplements Vitamin D3 + K2		from £23.32	–
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.