The best foods for beating the blues:
Omega-3s are the health nut’s worst-kept secret: almost everyone. . . . Omega-3s are a winter warrior’s ideal ally. Miller says that the best sources for these are fatty fish like wild salmon, anchovies and sardines. Nuts and seeds are also a good bet, especially walnuts, flax seeds (and flax oil), chia seeds, and hemp seeds. Spinach is really high in omega-3s. “All leafy greens contain Omega 3s, but spinach is the highest.