📅 2025-01-19
Protein is key to building muscle and losing body fat! Learn everything from daily protein intake to meal composition.
Protein is the main component of muscles, skin, hair, hormones, and enzymes. Essential for muscle growth and recovery, and more satiating than carbs or fats, making it effective for dieting. Has highest thermic effect of food (TEF), consuming much energy during digestion. Protein 1g = 4kcal but 30% consumed as heat during digestion. Helps minimize muscle loss during weight loss and maintain basal metabolic rate.
General population: 0.8-1.0g per kg body weight. Ex) 70kg = 56-70g/day. Muscle gain goal: 1.6-2.2g per kg. Ex) 70kg = 112-154g/day. Dieting (weight loss): 1.8-2.5g per kg. High protein prevents muscle loss. Athletes/bodybuilders: 2.0-3.0g per kg. Elderly (sarcopenia prevention): 1.2-1.5g per kg. Ideal to consume 20-40g per meal; absorption rate has limits even if eating too much at once.
Animal protein (high absorption): Chicken breast (31g per 100g), Egg (6g per 1), Beef (26g per 100g), Pork (25g per 100g), Fish (20-25g per 100g), Tofu (8g per 100g), Greek yogurt (10g per 100g), Milk (6.6g per 200ml). Plant protein: Chickpeas (19g per 100g), Lentils (9g per 100g), Quinoa (4g per 100g), Tofu (8g per 100g), Beans (36g per 100g), Almonds (21g per 100g). Supplements: Whey protein, plant protein powder.
Breakfast (30g): 3 scrambled eggs + 150g Greek yogurt + berries. Snack (20g): Protein shake (1 scoop whey protein) + banana. Lunch (40g): 200g grilled chicken breast + 1 cup quinoa + vegetable salad (olive oil). Snack (15g): 30g almonds + 1 apple. Dinner (35g): 150g grilled salmon + 1 sweet potato + broccoli. Total protein: About 140g (2g per kg for 70kg). Total calories: About 1,800-2,000kcal (diet standard).
① Include protein in every meal: Distribute evenly from breakfast to dinner. ② Prepare convenient protein foods: Keep boiled eggs, Greek yogurt, protein bars in fridge. ③ Eat protein first: Increase satiety by eating protein foods first during meals. ④ Consume within 30min-1hr after exercise: Optimal for muscle recovery. ⑤ Diverse protein sources: Balance amino acids by consuming both animal and plant proteins. ⑥ Hydration: Need water for protein metabolism, drink 2-3L water daily. ⑦ Include dietary fiber: Maintain digestive health with vegetables and whole grains.
Kidney disease caution: High-protein diet may burden kidneys, consult doctor if kidney disease. Excessive protein (over 3g per kg) strains kidneys and liver. Beware carb/fat deficiency: Excessive protein only causes energy deficiency and hormonal imbalance. Digestive issues: Sudden protein increase may cause indigestion, constipation. Increase gradually. Calorie excess caution: High-protein foods have calories too, need total calorie management. Balanced diet: Not just protein, but carbs, fats, vitamins, minerals are important too.
High-protein diet is the most effective strategy for muscle gain and fat loss. Calculate protein amount suited to your goal and weight, and practice consistently.