Vitamin D is sometimes called the “sunshine vitamin,” because your body makes most of what it needs when your skin is exposed to direct sunlight. That is exactly why deficiency is so common among women, especially those who spend most of their time indoors, cover up for cultural or practical reasons, or wear sunscreen daily — all reasonable habits that simply reduce how much your body can produce on its own.
Why does vitamin D matter so much?
This vitamin does more than support bone health and calcium absorption. It also plays a role in immune function, muscle strength, and even mood. Mild deficiency often has no obvious symptoms at first, but over time it can show up as unexplained fatigue, aches in the bones or muscles, or a weaker immune system that leaves you catching colds more easily.
Where can you get it?
- A few minutes of sun exposure on your hands and face most days.
- Fatty fish such as salmon, sardines, and tuna.
- Egg yolks and vitamin D–fortified dairy products.
- Mushrooms that were grown or treated with light exposure.
Do you need a supplement?
Getting enough vitamin D from food alone can be difficult, which is where supplements often come in. But before starting one, a simple blood test to check your current level is worthwhile, followed by a conversation with your doctor about the right dose — too much vitamin D can also cause problems.
