High-dose vitamin D3 sounds great on paper—lowering myostatin, boosting leptin sensitivity, making you more anabolic. But here’s the problem: it’s completely synthetic.

Just because you’re deficient doesn’t mean blasting 10,000 IU of isolated D3 is the answer. Your body doesn’t work in isolation. Without vitamin K2, magnesium, and calcium, you’re not even absorbing it properly. Worse? Overloading synthetic D3 without balance can actually deplete magnesium and lead to calcification issues.

And yet—none of these nuances are mentioned. If you’re going to give health advice, you have to include the full picture. Just popping a pill to “fix” your problems or chase muscle growth is missing the entire foundation of health.

Vitamin D isn’t just a supplement—it’s a hormone your body synthesizes when exposed to the sun. You’re designed to get it naturally—from direct sunlight, whole foods like egg yolks, grass-fed dairy, and fatty fish. Even on cloudy days, stepping outside benefits you more than popping an isolated pill.

If you’re in full winter mode for 3-4 months, a modest dose of 1,000-2,000 IU of D3 with K2, magnesium, and other cofactors makes sense. But mega-dosing year-round? That’s self-wintering your system.

I encourage a holistic approach to health. No magic pills. No shortcuts. Build strong foundations, and your body will handle the rest.