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.
It’s true that a caloric deficit—burning more calories per day than you take in—is a requisite of weight loss. But creating a deficit doesn’t have to (and shouldn’t) involve deprivation. That goes for calories, carbs, sugar, fat, or any other commonly demonized nutrient. “No one food is responsible for your weight,” Langer says, explaining that a good vs. bad mentality sets people up for disordered eating and exercise habits. In fact, caloric deprivation increases how the brain responds to food, setting you up for binge-eating down the line, according to research from the Oregon Research Institute.
We often make the wrong trade-offs. Many of us make the mistake of swapping fat for the empty calories of sugar and refined carbohydrates. Instead of eating whole-fat yoghurt, for example, we eat low- or no-fat versions that are packed with sugar to make up for the loss of taste. Or we swap our fatty breakfast bacon for a muffin or donut that causes rapid spikes in blood sugar.
“Do what works for you,” Langer says. “And if something doesn’t, change it. There’s a million other ways to go about it. There are no absolutes in nutrition.” Case in point: In a 2018 JAMA study, when more 600 adults who were classified as overweight followed a low-fat or low-carb eating plan over the course of 12 months, everyone lost about the same amount of weight.
And some of these factors can go pretty deep. Albers says that people often don’t realize how dramatically past experiences influence our relationships with ourselves and bodies. For example, having to clean your plate as a child, getting sweet treats to “cheer up” after a bad day at school, or being called “fat” when you were 8 years old all likely have an impact. “Comments about your body or being urged to lose weight by a parent can do emotional damage for the rest of your life,” Albers says. Unless you deal with these issues, “many people spin their wheels and don't know why they feel so stuck,” she says. For this reason, Langer often refers clients to psychologists who specialize in food issues, and she won’t work with those clients on the nutrition side of things until they’ve started to unpack these fundamental emotional factors. Understanding your relationship to food is an important step in trying to change it.
"Protein is great for fat loss. It helps build and preserve lean muscle tissue and can increase the amount of calories you burn. It’s also a great source of energy that helps you feel fuller for longer, so you’re less tempted to snack. Good sources include chicken breast, tuna, eggs, milk and chickpeas. And if you’re finding it difficult to avoid snacks that are high in carbohydrates, try substituting them for protein shakes or bars. Remember also to opt for the lean sources of protein because some sources can be high in saturated fat."