Sunlight: Aim for 10–30 minutes of midday sunlight several times a week, depending on your skin tone and location. Food: Include fatty fish (like salmon, mackerel, and tuna), egg yolks, fortified dairy products, and mushrooms.

Supplements: Consider a vitamin D3 supplement, especially during winter or if you have limited sun exposure — consult your healthcare provider for the right dosage. Check Your Levels: A simple blood test can determine if you’re deficient and guide your intake.

Keeping your vitamin D in check is a small step that can make a big difference in supporting your immune system and overall well-being.