Not all the nutrients and other substances that contribute to good health have been identified, so eating a wide assortment of healthy whole foods like fruits and vegetables helps ensure that you get all of the health-promoting benefits that foods can offer. If your diet, day after day, consists of the same half dozen foods, it could fall short. In addition, varying your food choices will limit your exposure to any pesticides or toxic substances that might be present in particular foods.
Before diving into all this delicious goodness, an important note: Health and weight loss are not the same thing, and they're different for different people. Whether you want to eat well, lose weight, or maintain your weight, it's about finding what works for you—including which foods help or your hinder your goals. But if you are looking to change how you look, it's important to ask yourself why, along with how you can do it while upgrading your mental and physical health instead of harming it. To that end, if you have a history of disordered eating, it's always a smart idea to chat with your doctor before making any changes to your eating habits. But even if you don't, talking with a doctor or registered dietitian can help make sure you're setting realistic, reasonable goals for yourself. Because remember, your weight is about so much more than how you eat and exercise. Various factors influence it, like your sleeping habits, your stress levels, and other components like health conditions and hormonal fluctuations.
^ Sacks, Frank M.; Lichtenstein, Alice H.; Wu, Jason H.Y.; Appel, Lawrence J.; Creager, Mark A.; Kris-Etherton, Penny M.; Miller, Michael; Rimm, Eric B.; Rudel, Lawrence L.; Robinson, Jennifer G.; Stone, Neil J.; Van Horn, Linda V. (15 June 2017). "Dietary Fats and Cardiovascular Disease: A Presidential Advisory From the American Heart Association" (PDF). Circulation. 136 (3): e1–e23. doi:10.1161/CIR.0000000000000510. PMID 28620111.
Like peanuts, lentils also contain genistein, but their weight loss powers don’t end there. In one four-week Spanish study, researchers found that eating a calorie-restricted diet that also included four weekly servings of legumes aided weight loss more effectively than an equivalent diet sans the pulses. Those who consumed the legume-rich diet also saw improvements in their “bad” LDL cholesterol levels and systolic blood pressure. Next time you’re cooking something starchy for dinner, consider eating fiber and protein-packed lentils instead.
While we’re on the subject of water, why not throw a few lemon slices into the hydrating and satiating beverage? In addition to adding a pop of color and flavor to a tall glass of H2O, lemon can also help encourage weight loss. Just one of the bright citrus fruits contains an entire day’s worth of vitamin C, a nutrient that has the power to reduce levels of a stress hormone called cortisol that triggers hunger and fat storage. Additionally, lemons also contain polyphenols, which researchers say may ward off fat accumulation and weight gain.