Vitamin D3: How Supplementation Improves Performance

"Time is no longer the enemy; it's the stage where strength and health are built. Personalized vitamin D3 is the key to aligning performance with well-being."

A recent study published in the prestigious journal Nutrients in April 2025 has shed light on the key role of vitamin D3 in health and athletic performance. Researchers from British Swimming's Sports Science and Sports Medicine team and other UK institutions analyzed vitamin D levels in elite British swimmers for three years, concluding that daily supplementation with 4,000 IU of vitamin D3 eliminated the deficiency in 93% of participants.

This finding not only confirms that vitamin D3 is essential for maintaining strong bones and functioning muscles, but also highlights its importance in preventing respiratory infections, especially in high-performance athletes who spend much of their time training indoors or with little sun exposure. The study even found that many swimmers exceeded the recommended levels, underscoring the need to personalize doses for each individual.

At Longevitas, we've made this philosophy the cornerstone of our approach: it's not just about supplementing with vitamin D3, but about doing so knowledgeably, tailoring the doses and forms to each individual. Our approach combines biogenetic analysis, absorption studies, and a deep understanding of each client's specific needs. This way, we ensure that each recommendation is unique, designed to boost health and well-being from within.

Because vitamin D3 isn't just a matter of bones or muscles. It's an essential piece in the complex puzzle of the immune system, metabolism, and inflammation regulation. And only through a personalized strategy can we ensure each person gets what they truly need.

At Longevitas, we don't believe in generic formulas. We believe in formulas tailored to you, your life, and your pace. That's why we say we're Your Vital Supplement.

"Success isn't the result of luck, but of preparation and perseverance." – Colin Powell, leader and strategist.