Suspect you have a sluggish metabolism? You might have hypothyroidism, or an underactive thyroid gland, which afflicts about 25 percent of American women — many of whom don't know they have the condition, according to the American Association of Clinical Endocrinologists. "The thyroid gland controls your body's metabolism, so one of the first signs that it may be off is an inability to lose weight," explains Pamela Peeke, M.D., professor of medicine at the University of Maryland and author of Fight Fat After Forty. Your doctor can determine if you're suffering from hypothyroidism by running a blood test. If you do have an underactive thyroid, you'll be treated with a synthetic thyroid supplement, which you will need to take for the rest of your life (it will return your metabolism to normal, so it should be easier to drop unwanted pounds).
Weight Watchers has been around for more than 50 years, and has always been a point-based system -- currently known as SmartPoints. Those points are calculated from a formula that takes into account the food's fat, sugar, protein and carbohydrate count. You're given a specific number of points each day that you track and log, as well as weekly bonus points for snacks or additional food items. Fitness is also a bigger component, and you're encouraged to set fitness goals when you set up your profile, then track them and, if you wish, exchange FitPoints for food.
Whether you track how many inches you’ve lost, keep a food diary or maintain a journal about the healthy changes you’ve made, it’s encouraging to see what a great job you’re doing! Bonus: Keeping an exercise or food diary can help you see weaknesses in your routine, push yourself out of a fitness plateau or notice what situations drive you to eat more or exercise less.
The trick here is not only to avoid all obvious sources of carbohydrate (sweets, bread, spaghetti, rice, potatoes), but also to be careful with your protein intake. If you eat large amounts of meat, eggs and the like, the excess protein will be converted into glucose in your body. Large amounts of protein can also raise your insulin levels somewhat. This compromises optimal ketosis.