12/03/2025
Shop Our Family Pharmacy for your Vitamin D supplements.🌞 Monday-Friday 9:00-6:00🌞
Many people benefit from vitamin D supplements in the winter because sunlight—the main natural source of vitamin D—drops significantly. Here’s why that matters:
🌥️ 1. Less Sunlight = Less Vitamin D Production
Your skin makes vitamin D when exposed to UVB rays. In winter:
The sun is lower in the sky.
UVB levels are too weak in many regions (especially above ~35° latitude).
You spend more time indoors and wear more clothing.
As a result, your body may not produce enough vitamin D naturally.
🌎 2. Seasonal Deficiency Is Common
Vitamin D levels typically fall during late fall and winter. Many people become insufficient or deficient, especially:
Those living in northern regions
People with darker skin (melanin reduces vitamin D synthesis)
Older adults (skin makes less vitamin D)
People who spend little time outdoors year-round
🧠 3. Vitamin D Supports Key Body Functions
Low vitamin D is linked to issues such as:
Weaker immunity (more frequent colds/flu)
Low mood or increased risk of seasonal affective symptoms
Muscle weakness
Bone loss (vitamin D boosts calcium absorption)
Higher risk of falls in older adults
🍳 4. Food Sources Aren’t Enough for Most People
Few foods contain meaningful vitamin D naturally:
Fatty fish (salmon, mackerel)
Egg yolks
Fortified milk/plant milks
But diet alone usually doesn’t meet daily needs, especially when sunlight is limited.
💊 5. Supplements Are a Safe, Effective Backup
A typical winter dose for adults is 600–2000 IU/day, depending on age, health conditions, and baseline levels. (It’s best to ask a clinician or check your blood level if you want a personalized dose.)
