Eating spicy foods reduces the sensation of hunger, which leads to consuming smaller portions. The earlier in the day you eat something spicy, the less hungry you'll be. Go ahead and sprinkle a pinch of red pepper flakes onto your morning avocado toast or drizzle some Sriracha over your veggie omelet for some light heat to fuel your day. If you're a spice fiend, then by all means, experiment with different hot sauces and chili peppers. Studies have also shown that spicy dishes can increase metabolism temporarily.