What is the best food for senior citizens in winter?

Slippery roads in winter make it hard to go to the grocery store very often. But as eating fresh food is essential in summer, nutrition in winter is also crucial. Some in-season fruits and vegetables can play a substantial role in your health in winter.
Root veggies are abundant in winter. Carrots, beets, parsnips, and yams are very nutritious; they are high in vitamins such as A, B, C, and other minerals like iron and fibre.
Citrus fruits such as oranges, lemons, grapefruits are high in vitamin C.
Use nuts, flax seeds, and avocados to get enough omega-3. This fatty acid protects you from many diseases such as heart diseases, arthritis, and cancer. Spinach, broccoli, and other dark green vegetables provide many fibres, vitamins, and antioxidants.
Vitamin D builds up in our bodies when we get sunlight, and we usually don’t get enough in winter. Consume sources of vitamin D daily. Sources like eggs, seafood, and vitamin D fortified milk.