1: "Sunlight is key for Vitamin D. Spend time outdoors daily. "

2: "Eat foods rich in B12 like meat, fish, and dairy products."

3: "Include foods like nuts, seeds, and leafy greens for magnesium."

4: "Take Vitamin D supplements to boost immunity in winter."

5: "Incorporate fortified foods like cereals for Vitamin B12 intake."

6: "Enjoy magnesium-rich foods such as avocados and bananas."

7: "Include mushrooms and fortified dairy products for Vitamin D."

8: "Opt for lean meats like chicken for Vitamin B12 consumption."

9: "Snack on dark chocolate for a tasty magnesium boost in winter."