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Protein on a food label indicates the amount of this essential macronutrient in one serving, measured in grams. Protein is fundamentally important because it serves as the building blocks for your body’s tissues – muscles, skin, hair, nails, organs, and even hormones and enzymes are made from proteins. Unlike carbohydrates and fats, your body cannot store protein, so you need to consume it regularly through your diet.

When you eat protein, your body breaks it down into amino acids, which are then used to build and repair tissues, support immune function, and maintain muscle mass. This is why protein is particularly important for children (who are growing), athletes (who need muscle repair), older adults (who may lose muscle mass), and anyone recovering from illness or injury.

Protein also plays a crucial role in satiety – it helps you feel full and satisfied after eating. Foods higher in protein tend to keep hunger at bay longer than foods high in carbohydrates or fat alone. This makes protein valuable for weight management, as it can help prevent overeating and reduce cravings between meals.

The recommended daily protein intake varies by individual, but generally, adults need about 0.8-1g of protein per kilogram of body weight. For a 70kg person, this translates to roughly 56-70g of protein daily. Active individuals, pregnant women, and older adults may need more.

Good protein sources include lean meats, fish, eggs, dairy products, legumes (beans and lentils), nuts, and seeds. When reading food labels, look for foods that provide substantial protein relative to their calorie content. For example, Greek yogurt might provide 15g protein in 150 calories, making it a protein-rich choice, while a protein bar with 10g protein in 250 calories is less efficient.

Understanding protein content helps you ensure adequate intake throughout the day and choose foods that support your health goals.