When you drink liquid carbs, like the sugar in soda, your body doesn't register them the same way as, say, a piece of bread, according to a review of studies published in Current Opinion in Clinical Nutrition & Metabolic Care. That means, even though you're taking in calories, your fullness cues aren't likely to signal that you're satisfied once you finish off a can. And that can lead to consuming more overall.
You’re only losing one or two pounds a week. Sustainable weight loss is slow and steady. “It depends on where you start — if you have quite a bit of weight to lose, you tend to lose the initial weight faster,” noted Dr. Steinbaum, “but losing more than a pound a week is quite a bit. A gradual decrease in weight loss implies that your dietary changes are sustainable. If you lose weight very quickly, it means that there has been a calorie restriction or an increase in activity that is really significant, and it is really hard to sustain that.” That’s why so many yo-yo dieters gain the weight back. But aiming for smaller targets can add up to big changes -- and reaps more health benefits than the numbers on the scale suggest. “Even when you lose only 3% of your body weight (six pounds for a 200-pound person), your blood sugar improves; your insulin sensitivity is improved; inflammation goes down; your cholesterol goes down,” said Dr. Arad. “You don’t have to cut down half of your weight; even losing 3% to 5% is an excellent goal.”
The efficacy of Nutrisystem boils down to portion control. A tiny tray of frozen tuna casserole doesn’t provide a lot of nutrients or satisfaction, but if that’s all you have for dinner, you’re keeping calorie count low. We entered in a couple Nutrisystem meals and found their point count to be mid-high, between 7 and 9. Ultimately, tiny amounts of not-wholesome foods doesn’t teach you to eat well.