Vitamin D3 and K2 are a powerful pairing, crucial for bone health, heart function, and overall wellbeing. Many UK residents are deficient in Vitamin D, particularly during winter months. Combining it with K2 enhances absorption and directs calcium to bones, preventing arterial calcification. This article reviews some of the best D3 & K2 supplements available in the UK, considering dosage, form, price, and user reviews. We aim to help you find the perfect supplement for your needs.
Why Combine Vitamin D3 & K2?
Vitamin D3 aids calcium absorption in the gut. However, calcium needs to be deposited correctly – primarily in bones and teeth. Vitamin K2 (specifically MK-7) activates proteins that direct calcium to these areas. Without sufficient K2, calcium can accumulate in soft tissues like arteries, potentially leading to cardiovascular issues. This synergistic effect makes the combination superior to taking D3 alone.
BetterYou D3 + K2 Oral Spray
Form: Oral Spray
Dosage: 1000IU D3, 100mcg K2 (MK-7) per spray
Price: £19.99 (approx.)
Pros: Excellent absorption via sublingual delivery, convenient, pleasant taste, vegan-friendly.
Cons: More expensive per dose than capsules, some dislike the taste.
Review: BetterYou is a popular choice, particularly for those who struggle with swallowing pills. The spray format ensures rapid absorption. Highly rated for effectiveness.
NutriShield Vitamin D3 + K2 Capsules
Form: Capsules
Dosage: 2000IU D3, 100mcg K2 (MK-7) per capsule
Price: £14.99 (approx.)
Pros: High dosage, cost-effective, good value for money, vegan-friendly.
Cons: Capsule form may not suit everyone.
Review: NutriShield offers a potent dose in a convenient capsule. It’s a great option for those needing a higher intake, and the price is competitive.
Life Extension Vitamin D3 & K2 with BioPerine
Form: Softgels
Dosage: 5000IU D3, 100mcg K2 (MK-7) per softgel
Price: £24.99 (approx.)
Pros: Very high dosage, includes BioPerine for enhanced absorption, high-quality ingredients.
Cons: High dosage may not be suitable for everyone – consult a doctor. More expensive.
Review: Life Extension is a well-respected brand known for its research-backed formulations. The addition of BioPerine boosts absorption, making it a powerful option.
Solgar Vitamin D3 + K2 Vegetable Capsules
Form: Vegetable Capsules
Dosage: 1000IU D3, 100mcg K2 (MK-7) per capsule
Price: £18.99 (approx.)
Pros: Trusted brand, suitable for vegetarians, good quality control.
Cons: Can be slightly more expensive than some alternatives.
Review: Solgar is a long-established brand with a reputation for quality. These vegetable capsules are a good choice for those with dietary restrictions.
Choosing the Right Supplement
- Dosage: Consider your current Vitamin D levels (a blood test is recommended). Most adults benefit from 1000-2000IU of D3 daily.
- K2 Form: MK-7 is the preferred form of K2 due to its longer half-life.
- Form: Choose a form that suits your preference – spray, capsule, or softgel.
- Dietary Needs: Ensure the supplement is vegan/vegetarian if required.
- Brand Reputation: Opt for reputable brands with third-party testing.
Important Considerations
Always consult with your doctor before starting any new supplement regimen, especially if you have underlying health conditions or are taking medications. Vitamin D is fat-soluble, so taking it with a meal containing healthy fats can improve absorption. Be mindful of potential interactions with blood thinners.
