4000IU D3
100µg K2 (MK-7)
Trained By JP TBJP D3 & K2 60 Caps - 60 Caps
TBJP

TBJP D3 & K2 60 Caps

★★★★★
5.0 | 1 reviews |  60 Servings
£17.99 £19.99 £0.30/serving
High-Strength D3 + K2 Vitamin D and K both contribute to the maintenance of normal bones. Daily-use stack for lifters training year-round under load.
Immune And Muscle Function Vitamin D contributes to normal immune function and to normal muscle function - particularly relevant through UK autumn and winter when sunlight is limited.
One Capsule Per Day Single-capsule daily dose. Vegan-friendly capsule shell. No proprietary blends, no unnecessary fillers.
Size 60 Caps
Standard delivery
Next day (£5.99)
17,600+ Reviews
14-Day Returns
Est. 2005
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Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle. If you are pregnant, breastfeeding, taking medication, or under medical supervision, consult your doctor before use. Do not exceed the recommended daily intake. Store out of reach of children.

60 Caps

TBJP D3 & K2 60 Caps, High-Strength Bone & Immune Stack

Trained By JP D3 + K2 is a high-dose vitamin D3 and vitamin K2 capsule built for adults who want daily bone, muscle and immune support in a single capsule routine, particularly through the UK winter months when natural sunlight exposure is limited. Each capsule delivers a clinically-relevant dose of cholecalciferol (vitamin D3) paired with menaquinone-7 (vitamin K2 MK-7) - the most-researched K2 form for bone matrix and calcium direction.

Vitamin D3 contributes to normal muscle function, normal absorption of calcium and phosphorus, and the maintenance of normal bones and teeth (EFSA-authorised under Regulation 432/2012). Vitamin K2 MK-7 supports normal blood clotting and contributes to the maintenance of normal bones. The D3 + K2 combination is the standard pairing in bone-support supplementation - D3 supports calcium absorption from food, K2 directs the absorbed calcium to bone matrix rather than soft tissue.

What separates D3 + K2 from a standalone D3 capsule is the calcium direction pathway. Standalone D3 increases calcium absorption but doesn't guide where the absorbed calcium goes - this is where K2 plays its role. Trainees running high-dose D3 protocols typically pair with K2 specifically for this synergy. TBJP runs both at clinical-research doses in one capsule rather than requiring two separate bottles.

D3 + K2 suits adults running daily bone-and-muscle support routines, athletes in winter training blocks where natural sunlight exposure is low, trainees managing recovery from high-impact training, and anyone wanting a single-capsule D3 + K2 stack at clinical doses. Not for those on prescribed vitamin K antagonist medication (e.g. warfarin) without medical supervision.

Key Benefits

High-Strength D3 + K2

Vitamin D and K both contribute to the maintenance of normal bones. Daily-use stack for lifters training year-round under load.

Immune And Muscle Function

Vitamin D contributes to normal immune function and to normal muscle function - particularly relevant through UK autumn and winter when sunlight is limited.

One Capsule Per Day

Single-capsule daily dose. Vegan-friendly capsule shell. No proprietary blends, no unnecessary fillers.

4000IU D3

100µg K2 (MK-7) Authorised TBJP stockist. Free UK delivery over £40.

Frequently Asked Questions

Why combine vitamin D3 and K2?

TBJP D3 & K2 pairs vitamin D3 (cholecalciferol) with vitamin K2 (MK-7) in one daily capsule. Vitamin D contributes to normal immune function, normal muscle function, and the maintenance of normal bones and teeth. Vitamin K contributes to normal blood clotting and to the maintenance of normal bones. Both are fat-soluble - take with a meal containing fat.

When is the best time to take vitamin D3 K2?

Take TBJP D3 & K2 once daily with a meal containing fat - breakfast or your largest meal of the day works well. Vitamin D and K are both fat-soluble, so pairing the dose with dietary fat supports absorption. Daily consistency matters more than exact timing.

Should I take vitamin D3 K2 year-round?

For UK-based training individuals, year-round use is sensible. UK sunlight is insufficient to maintain vitamin D status from October through March, and skin synthesis is limited by indoor time and sunscreen use even in summer. Take one capsule daily with food, every day of the year.