Nutrition for Weight Loss
Losing weight sustainably doesn't rely on a miracle diet or a magic pill. The science is clear: a moderate calorie deficit, sufficient protein intake, quality nutrition, and patience are the proven formula. This guide explains how to apply these principles practically, without frustration.
Steps
Calculate your calorie deficit
A deficit of 300 to 500 kcal per day below your TDEE allows for a loss of 0.3 to 0.5 kg per week, a sustainable pace that preserves muscle mass. Avoid deficits larger than 700 kcal, which trigger metabolic adaptation and increase muscle loss.
Maintain high protein intake
During a deficit, protein protects your muscle mass and increases satiety. Aim for 1.6 to 2.2 g of protein per kg of body weight. Practically, for a 75 kg person, this represents 120 to 165 g per day, spread across 3 to 4 meals.
Control portions smartly
Use simple tricks: smaller plates, weigh your starches once to calibrate your eye, fill half the plate with vegetables. These strategies reduce calories without feeling deprived. Nutrient density is your ally: lots of volume for few calories.
Plan your meals in advance
Planning eliminates the impulsive decisions that sabotage weight loss. When your meals are planned, you avoid last-minute fast food and boredom snacking. A simple plan for 5 out of 7 days is enough to stay on track.
Move more daily
Increasing NEAT (walking, stairs, cleaning) is often more effective than adding intense workout sessions. Aiming for 8,000 to 10,000 steps a day increases your expenditure by 300 to 500 kcal. Combined with strength training 2 to 3 times a week, it's the optimal strategy.
Be patient and consistent
Healthy weight loss takes time. Expect plateaus, fluctuations, and weeks with no apparent progress on the scale. The trend over 4 to 8 weeks is what matters. 80% consistency beats 100% perfection followed by quitting.
The only rule that matters: Energy Balance
To lose fat, you must consume less energy than you expend. This is the fundamental law of thermodynamics applied to nutrition, confirmed by thousands of studies. No food, supplement, or meal timing can bypass this principle.
This doesn't mean only calories count: the source of calories influences hunger, hormones, energy, and body composition. A 500 kcal deficit based on lean protein, vegetables, and whole grains will yield much better results than an identical deficit based on cookies and soda.
The most common mistake is underestimating calorie intake (studies show an average underestimation of 30% to 50%) and overestimating physical expenditure. A period of precise tracking for a few weeks allows you to recalibrate your perception.
The thermal advantage of protein
Protein is the most satiating macronutrient: it reduces ghrelin (hunger hormone) and increases PYY (satiety hormone). A high-protein breakfast (eggs, Greek yogurt, cottage cheese) significantly reduces calorie intake for the rest of the day.
Furthermore, protein has the highest thermic effect: the body spends 20% to 30% of protein calories just to digest them. Out of a 150 g protein intake (600 kcal), 120 to 180 kcal are burned by digestion itself.
Finally, maintaining high protein intake during a calorie deficit minimizes muscle mass loss. Studies show that people consuming 1.6 g/kg of protein during a diet lose almost exclusively fat, while those at 0.8 g/kg also lose muscle.
Sustainable Diet vs. Crash Diet
Drastic diets (less than 1,000 kcal/day) produce fast but temporary results. 80% to 95% of people regain the lost weight within 2 years, often with a surplus. The reason: metabolic adaptation, muscle loss, psychological frustration, and failure to learn new eating habits.
A sustainable diet is a diet you could follow for years. It includes all food groups, allows for moderate treats, fits into social life, and generates neither obsession nor guilt. The deficit is moderate (300-500 kcal) and diet breaks are integrated.
The best approach: consider weight loss as a gradual change in habits, not a temporary ordeal. Change 1 to 2 habits per month rather than turning everything upside down at once. Results are slower but infinitely more sustainable.
FoodCraft Tip
Calculate your ideal deficit with FoodCraft
The FoodCraft calorie deficit calculator determines your TDEE and then recommends a deficit tailored to your profile and weight loss goal. It gives you a realistic daily calorie target and an estimate of the time needed to reach your target weight.
AI Planning for weight loss
FoodCraft AI meal planning creates weekly menus that respect your calorie deficit while maximizing satiety and enjoyment. It prioritizes nutrient-dense foods, sufficient protein, and variety to avoid monotony.
Frequently Asked Questions
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