11/14/2025
As central Iowa moves into shorter, darker days, many people notice their energy, mood, and motivation drop. This is more than “winter blues.” It’s often a direct result of losing sunlight, our main source of vitamin D - the ☀️! From October through March, the sun sits too low for your skin to make meaningful vitamin D, which is why 30–40% of adults become deficient by mid to late December.
Low vitamin D can show up as fatigue, irritability, weaker immunity, stiffness, or slower workout recovery. Vitamin D3 supports immune health, hormone balance, bone strength, and mood regulation, and pairing it with vitamin K2 helps your body use calcium in the right places. Because Iowa winters limit sun exposure for months, supplementation becomes one of the simplest ways to stay healthy.
Most adults do well with 1000–2000 IU of D3 daily, while those who run low often need 2000–5000 IU. People usually notice improvements in mood, energy, and recovery within a few weeks.
Seasonal Affective Disorder (SAD) is also more common this time of year. Reduced daylight affects serotonin, circadian rhythm, and vitamin D levels, causing fatigue and lower mood. Supporting vitamin D and getting more light exposure can make a real difference 🌤️.
If you want guidance on the best D3 + K2 options, we offer practitioner-grade supplements and personalized recommendations. A simple change now can help you feel better all winter long. (We can ship to your door!)
