How much of a deficit? A 500 calorie a day deficit is sustainable for some while leaning down, but any deficit will do. A 1000 calorie a day deficit is aggressive and difficult to maintain. No matter what, don’t drop your calories below 1000 per day, even if you think it will lead to faster weight loss. You’ll be losing muscle at that point, and sacrificing your health and sanity. Not worth it.
Cancer, a very common and sometimes fatal cause of unexplained (idiopathic) weight loss. About one-third of unintentional weight loss cases are secondary to malignancy. Cancers to suspect in patients with unexplained weight loss include gastrointestinal, prostate, hepatobiliary (hepatocellular carcinoma, pancreatic cancer), ovarian, hematologic or lung malignancies.
Avoid fad diets, diet pills, and "quick-fix" diet plans that severely restrict calories or food groups. Fad diets and techniques for rapid weight loss are not always effective, and some may be dangerous. Pills, powders, and diet programs that require extreme calorie restriction, total avoidance of entire food groups, or excessive exercise can be very hazardous to health. Pills and supplements are not monitored by the FDA and may not be safe. Unless you have a medical reason for avoiding a particular type of food, a balanced and varied diet is essential for adequate nutrition and healthy, steady weight loss. Diet pills and restrictive diet plans can cause nutrient deficits, organ damage, high cholesterol, and many other dangerous health problems.
Sugary treats, while obviously delicious, aren’t very good for our bodies—and that includes our tummies. Not only do the added calories add inches to our waistlines, but sugar overload leads to insulin resistance, which tells the body to store extra fat around the waist. But that’s long-term stuff. Sugar also bloats your tummy in the short-term by feeding the bad bacteria in your gut, leading to extra gas. When it comes to flattening your belly, nixing sugar is one of the best things you can do including these 42 other easy tips to lose weight fast!