Vitamin D3 + K2 with Coconut MCT Oil by Sports Research

Sports Research Vitamin D3 + K2 — Product Overview

Sports Research Vitamin D3 + K2 with Coconut MCT Oil is a precision combination supplement designed to address two of the most clinically important fat-soluble nutrient deficiencies in the Singapore adult population. National Nutrition Survey data and hospital-based studies consistently identify vitamin D insufficiency (25(OH)D < 50 nmol/L) in 30–60% of Singaporeans due to equatorial UV avoidance behaviours, indoor work patterns, and sun-protective practices. Vitamin K2 (MK-7 form) is less commonly measured but similarly insufficient in populations with low fermented food intake.

The dual D3+K2 formulation is supported by an expanding evidence base. A landmark RCT (Knapen et al., Osteoporosis International, 2013) demonstrated that MK-7 supplementation at 180 mcg daily significantly improved markers of carboxylated osteocalcin and bone matrix protein activation versus placebo. The coconut MCT oil in each softgel serves as a lipid vehicle, enhancing the intestinal absorption of both fat-soluble vitamins—particularly important for individuals with malabsorptive conditions or low dietary fat intake.

Product Specifications

Key Clinical Applications

• Vitamin D insufficiency correction in Singapore adults with limited sun exposure, indoor occupational settings, or consistent sun protection use
• Bone health maintenance: D3 + K2 (MK-7) combination supports bone mineralisation, osteocalcin carboxylation, and reduction of vertebral fracture risk in postmenopausal and elderly populations
• Cardiovascular protection via K2-mediated inhibition of vascular calcification—activated by Matrix Gla Protein (MGP) carboxylation—particularly relevant in patients with high calcium dietary intake
• Immune system support: Vitamin D3 is a key regulator of innate and adaptive immune responses, and deficiency is associated with increased susceptibility to respiratory tract infections
• Adjunctive support for patients with osteopenia, osteoporosis, or calcium malabsorption under clinician supervision
• Vegan-friendly D3+K2 supplementation for individuals avoiding animal-derived sources of these nutrients

Frequently Asked Questions

Why is MK-7 the preferred form of Vitamin K2 over MK-4?
MK-7 (menaquinone-7) has a significantly longer plasma half-life than MK-4 (menaquinone-4)—approximately 72 hours versus 1–2 hours—resulting in more consistent tissue saturation and activation of K2-dependent proteins (osteocalcin and MGP) throughout the day at once-daily dosing. MK-7 at doses of 90–180 mcg/day has demonstrated significant increases in carboxylated osteocalcin and reductions in undercarboxylated osteocalcin in multiple clinical trials. MK-4 requires higher, multiple-daily dosing to achieve equivalent protein activation.

Why is Vitamin D3 combined with MCT oil in this formulation?
Vitamins D and K are fat-soluble and require dietary fat co-ingestion for optimal intestinal lymphatic absorption. Incorporating coconut MCT oil directly within the softgel eliminates dependence on the fat content of the meal taken with the capsule—an important consideration for individuals following low-fat diets or eating light meals. MCT oil also provides a readily oxidisable energy substrate and does not require chylomicron packaging for absorption, making it an efficient lipid vehicle for fat-soluble micronutrients.

Is 5,000 IU of Vitamin D3 safe for daily use in Singapore?
The US Tolerable Upper Intake Level (UL) for vitamin D in adults is 4,000 IU/day (Food and Nutrition Board, Institute of Medicine), although clinical practice guidelines from the Endocrine Society recognise that 10,000 IU/day may be required therapeutically under physician monitoring without toxicity risk. At 5,000 IU/day, most adults will achieve and maintain serum 25(OH)D levels in the sufficiency range (50–100 nmol/L). Periodic serum 25(OH)D measurement is advisable for long-term users, particularly those with renal disease or hypercalcaemia history. EMIS+'s clinical team (info@emis.asia) can advise on appropriate supplementation monitoring.

Can this product be taken alongside calcium supplements?
Yes, and the D3+K2 combination is specifically designed to optimise calcium metabolism in patients supplementing calcium. D3 increases intestinal calcium absorption; K2 (MK-7) activates the proteins that direct absorbed calcium into bone (via osteocalcin) and prevent it from depositing in arteries (via MGP). Taking D3+K2 alongside calcium supplementation may reduce the cardiovascular risk that has been associated with calcium supplementation without adequate K2 status.

Is Sports Research Vitamin D3+K2 available in Singapore without a prescription?
Yes. Sports Research Vitamin D3+K2 is available through EMIS+ (emis.asia) as a health supplement—no prescription is required. As a fat-soluble vitamin supplement above 1,000 IU D3, clinicians managing patients with renal disease, hypercalcaemia, or granulomatous disease should be aware of contraindications to high-dose vitamin D. For institutional procurement, clinical practice supply, or patient care home delivery enquiries, contact hello@emis.asia or Tel: +65 9730 3658.