Eggs (vitamin D)
Eggs, particularly those from pasture-raised hens, are rich in vitamin D, a disease-fighting nutrient that comes primarily from sunlight. Since it’s not always practical to head outside, half-naked, to soak up some D in the winter, load up on eggs, which are also filled with mood-promoting omega-3 fatty acids, zinc, B vitamins, and iodide.
Learn More: Getting Started with Backyard Chickens