10 Key Principles for Losing Weight in the New Year

To help you reach your ideal weight and maintain it for a long time (or better yet, forever), we’ve thoroughly reviewed the latest scientific research in nutrition and the psychology of eating behavior, consulted with leading experts, and formulated 10 key rules that have proven effective in rigorous scientific studies.

Article contents:

• 1. It’s not just a diet, but a new lifestyle
• 2. Don’t overestimate your results at the gym
• 3. Learn to distinguish real hunger from false signals
• 4. Calories vary in quality
• 5. Protein, fat, and fiber—the three pillars of successful weight loss
• 6. Skipping meals, fasting, and strict diets are the wrong approach
• 7. How you eat is just as important as what you eat
• 8. The scale is your trusted companion
• 9. Excessive stress and lack of sleep are detrimental factors
• 10. A plateau is inevitable, but it can be overcome

before you start your journey to lose weight, it’s important to understand one thing: you are not fat! Take this as a given. Having excess fat is no reason to blame yourself for being weak or to feel ashamed of your body. It’s just another chance to prove to yourself that you’re capable of achieving your goals. “Proper nutrition, like any other skill, is something that develops gradually,” notes Deborah BASIS, M.D., co-author of *The Diet Trap Solution*. “But it will take serious work. The result depends directly on the quality of your efforts and your patience.”

1. It’s not just a diet, but a new lifestyle

You’ve likely already seen firsthand why your previous attempts to lose weight ended in failure. “If you think of a diet as a temporary measure, it’s incredibly difficult to achieve significant weight loss, let alone maintain it long-term,” — emphasizes Deborah Basis. To lose weight effectively, you need to change your eating habits permanently, not just for a few months. A temporary reduction in calories followed by a quick return to your old lifestyle will lead to regaining the lost weight much faster.

• A tip for successful weight loss. “Research confirms that one of the most powerful motivators on the path to sustainable weight loss is seeing positive results as early as the first month,” explains John Apolzan, Ph.D., associate professor in the Department of Behavioral Psychology at Louisiana State University. That’s why nutritionists recommend sticking to a stricter eating plan during the first two weeks—drastically cut back on sugar and alcohol, and eliminate simple carbohydrates from your diet. “Then you can gradually reintroduce these foods in small amounts without fear of gaining weight,” advises Wendy Bazilian, a dietitian and fitness trainer and co-author of the book *SuperFoodsRx Diet*. Set clear boundaries for yourself: for example, drink 2 liters of water daily, and allow yourself no more than one slice of your favorite pizza. Treat yourself to small indulgences once a week and don’t beat yourself up if you slip up occasionally—the key is not to get hung up on it. It’s recommended to do a “sugar detox” for one to two weeks.

2. Don’t overestimate your results at the gym

Regular exercise helps burn calories and boost metabolism by increasing muscle mass. However, many people trying to lose weight tend to overestimate the number of calories burned during workouts. “Unfortunately, our bodies are designed to hold onto excess weight,” says Louis Aron, MD, professor of medicine and director of the Comprehensive Weight Control Center at Weill Cornell Medicine. “During physical activity, the body perceives an energy deficit and intensifies feelings of hunger by sending corresponding signals to the brain.” As a result, after a workout appetite increases so much that you end up eating more than you burned. For example, you burned 500 calories—but ate 700.”

• How to maintain balance. Optimally increase energy expenditure with minimal time investment. “Cardio workouts are beneficial, but high-intensity interval training is best suited. It promotes muscle development, which speeds up metabolism and fat burning,” explains Lance DALLECK, associate professor in the Department of Physical Education at Western Colorado State University. His recommendation is 2–3 strength interval training sessions per week, as well as 3–5 cardio sessions burning 250 to 400 calories for maximum effect.

3. Learn to distinguish real hunger from false signals

“Many women struggle to lose weight because they’re constantly worried about feeling hungry. For them, hunger is associated with discomfort that they want to avoid at all costs. As a result, they snack constantly, even when their bodies don’t need extra energy,” explains Louis Aron. — There are also people who eat because of stress or boredom. Ideally, you should start eating only when you’re truly hungry—when your stomach growls or hunger makes it hard to concentrate.”

• What to do to resist the temptation. The next time you feel like snacking, ask yourself: “Am I really hungry, or is it just an emotion—anger, fatigue, boredom?” If you’re unsure, take the “apple test.” “If you’re truly hungry, an apple will seem like the most delicious meal, but if you’re craving pizza, that’s a sign you don’t actually need food,” advises Robin Frutchey, a behavioral therapist at Johns Hopkins University. “Remember: if hunger isn’t the problem, food isn’t the solution.” In that case, it’s better to go for a walk, write a letter to a friend, or hit the gym—these alternatives won’t harm your figure and help you cope with emotional hunger.

4. Calories vary in quality

The mechanism of weight loss is extremely simple: burn more calories than you consume. But it matters where those calories come from. 1,000 calories from chocolate and 1,000 calories from fresh vegetables have different effects on the body. “Processed foods high in saturated fats and sugar trigger inflammatory processes in the body. This leads to hormonal imbalances and disrupts the brain’s satiety signals,” explains Robert Frutchey. As a result, people end up eating significantly more. A study by researchers at Marshall University, conducted to investigate childhood obesity, divided participants into two groups: the first group followed a standard diet but with portion control, while the second group had unlimited access to low-carbohydrate foods. After two months, the children in the second group lost an average of 5 kg, while the first group gained 2 kg. This experiment clearly demonstrates how much more important the quality of calories is than the quantity. Additionally, other studies suggest that unhealthy food can cause food addiction.

• Weight Loss Recommendation. “Many people remain fixated on the idea of losing weight by counting calories alone,” says Alexey Borisov, Ph.D., nutritionist lr Health&Beauty (Germany). — Of course, cutting calories is the foundation of any weight-loss method, but it’s hard to count them in every meal. It’s much easier to categorize foods as low-calorie or high-calorie and choose the former. Include more vegetables, lean protein sources, and healthy fats in your diet—they quickly make you feel full without adding many calories. After a few weeks, you’ll notice a decrease in appetite and a natural reduction in your daily calorie intake. Another useful tool is keeping a food diary. A study in the American Journal of Preventive Medicine showed that people who regularly recorded their diet lost twice as much weight compared to those who did not.

5. Protein, fat, and fiber—the three pillars of successful weight loss

Protein is the primary building block of all the body’s cells, including muscles (approximately 30% of the body’s protein mass is found in the muscles). Protein, in the form of nucleic acids, is also responsible for storing genetic information. An experiment by Dr. Louis Aron showed that participants who consumed double the recommended amount of protein (about 110 g per 70 kg of body weight) lost approximately 70% of their weight in the form of fat tissue, unlike those who consumed the usual amount of protein—for whom this figure was only 40%.

Fiber plays an important role in a healthy diet. “It’s very hard to overeat if your diet includes plenty of vegetables,” notes Caroline Apovian, MD, Director of Nutrition at Boston Medical Center. She gives an example: three cups of broccoli have a large volume but contain only 93 calories!

Plant-based fats—olive oil, avocados, and nuts—are valuable sources of polyunsaturated fatty acids. “A deficiency in fats can negatively affect the central nervous system, the immune system, vision, bowel function, and skin health,” explains Elena CHEDIA, Ph.D., a dietitian and associate professor in the Department of Dietetics at the Russian Medical Academy of Postgraduate Education.

• How to Lose Weight Effectively. Try to include all three key elements in every meal and snack. A study published in the journal *Appetite* found that people who regularly consume protein throughout the day find it easier to maintain a healthy weight. In addition to meat, poultry, and seafood, beans, lentils, eggs, tofu, and yogurt are considered excellent sources of protein. Fats play an important role in health and weight loss—the optimal amount is 1–2 tablespoons per day. Vegetables should be the main component of your diet. According to the same study, reducing daily calorie intake by 300 kcal is much easier to tolerate if the majority of your diet consists of a variety of vegetables.

6. Skipping meals, fasting, and strict diets are the wrong approach

A drastic reduction in calories for rapid weight loss does not help establish healthy eating habits, which means the lost weight quickly returns. But that’s not the only problem. “An even more serious consequence is the loss of muscle mass,” explains Aronn. “You’re not losing fat, but muscle, so the apparent weight loss is just an optical illusion.”

• How to Lose Weight Effectively. Depending on your target weight and current energy intake, reduce your calorie intake gradually—by no more than 500–1,000 calories per day. You can cut calories through both diet and physical activity. For example, skip one snack (about 200 kcal) and go for a walk that burns about 250 kcal.

7. How you eat is just as important as what you eat

For the brain to feel full in a timely manner, you need to pay attention not only to what’s on your plate but also to the process of eating. “The physical sensation of fullness is closely intertwined with psychological satisfaction,” notes Basis. “My clients often complain that it’s hard for them to lose weight because they love delicious food. However, in conversation it becomes clear that they almost never focus on the process—they chew while watching TV, reading, snacking behind the wheel, or at work.” In light of this, it’s no surprise that studies confirm: when distracted while eating, people consume significantly more calories.

• How to Lose Weight Effectively. Try to eat only at the table. Turn off the TV and computer, put your phone away, and focus on your food. Enjoy the aroma of your meal, chew slowly, and don’t take another serving until you’ve swallowed the previous one. According to a study published in the British Journal of Nutrition, women who ate mindfully consumed 30% fewer calories for the rest of the day than those who listened to audiobooks while eating.

8. The scale is your trusted companion

The debate over how often you should weigh yourself continues: some advocate for regular monitoring, while others believe that frequent weigh-ins can cause additional stress, since weekly weight fluctuations are often caused by more than just overeating. A new study conducted at Cornell University supports the view of those who advocate daily monitoring. Scientists have proven that regular weighing not only helps you lose weight more effectively but also helps you maintain your results for longer.

• How to lose weight effectively. Pay attention to how you feel. If you’re prone to slip-ups, it’s best to monitor your weight daily so you can track the effects of every snack—such as a slice of cake—and adjust your diet in a timely manner. Don’t panic if you see an unexpected weight gain—it may be due to eating salty foods, and if you don’t change your diet, your weight will return to normal literally the very next day.

9. Excessive stress and lack of sleep are detrimental factors

“When the body is exhausted and under stress, levels of the hormone cortisol rise, which stimulates the desire to eat something sweet or rich in simple carbohydrates,” explains Aronn. “With a lack of sleep, the production of ghrelin—the hunger hormone—increases, and the concentration of leptin—the substance that signals satiety—decreases.” According to a study published in the Canadian Medical Association Journal, those who slept only 5.5 hours a day during a two-week diet lost significantly less fat and felt hungrier compared to those who got at least 8 hours of sleep.

• How to Lose Weight Effectively. To reduce stress, you need to get at least 7 hours of sleep per day, and do so regularly, without trying to catch up on sleep on the weekends. A study by Tel Aviv University showed that if you frequently wake up at night due to your partner’s snoring or a pet’s restlessness, the quality of your sleep drops to the level of just 4 hours of restful sleep. To avoid this, it’s best not to let pets into the bedroom and to use “white noise” apps that mask extraneous sounds.

10. A plateau is inevitable, but it can be overcome

During weight loss, the body reduces its production of leptin—the hormone responsible for the feeling of fullness. “When you lose 10% of your body weight, leptin levels drop by about 50%,” says Louis Aron. “The brain interprets this as if the weight loss were much more significant and begins sending signals to the body that it needs to eat more and burn fewer calories.” Therefore, hitting a plateau is a normal stage that complicates further weight loss and maintaining results. Additionally, as you lose weight, your body expends less energy for the same activities. “If you used to burn 100 calories on a walk, now you burn about 80, despite the same distance and intensity,” explains Robert Frutchey.

• How to Lose Weight Effectively. If you haven’t added strength training yet, now is the time to start. Building muscle mass will boost your metabolism and help you break through a plateau. To maintain results, vary your exercises and increase the intensity of your workouts. Another option is to reduce your daily calorie intake by about 100 calories. Now that you’ve lost weight, your body doesn’t need the extra energy. If your progress has stalled, try eating carbohydrates last at every meal—after proteins and vegetables. Louis Aron believes this can lower blood sugar levels by nearly 40%, which is an excellent strategy for weight loss.