Comprehensive Guide: Nutrition, Exercise, Supplements — How to Lose Weight Healthily and Effectively

The essence of weight loss — calorie deficit. You must consume fewer calories than you expend. No supplements or miracle diets will change this law of physics.
When losing weight, the body breaks down not only fat but also muscle. Sufficient protein intake (1.8-2.5 g/kg body weight) helps preserve muscle mass. Muscle burns calories at rest — losing it slows metabolism.
Drink at least 2-3 liters of water per day. Water: speeds up metabolism by 24-30% (for 1-1.5 hours after drinking), reduces hunger, helps the body burn fat efficiently. Often, hunger is actually thirst.
There is no magic meal frequency. The most important thing is — total daily calorie intake. Some people do well with 3 larger meals, others with 5-6 smaller ones. Experiment and find what suits you best. However, do not skip protein — at least 3-4 times a day, 20-40 g each time.
Keep a food diary for at least 2 weeks. What works for your body is individual. Review the results every month and adjust your strategy.
Better 80% optimal nutrition every day than 100% one week and 50% the next. Consistency is the key to long-term results.
What works for your training partner will not necessarily work for you. Genetics, microbiota, hormones — everything is individual.
Do not rely on the scale alone. Measure body circumferences, track strength indicators, and take progress photos every 4 weeks.