What percentage of each nutrient is a balanced diet?

• A. 40% Protein, 30% Fat, 30% Carbs
• B. 30% Protein, 30% Fat, 40% Carbs
• C. 33% Protein, 33% Fat, 34% Carbs
• D. 25% Protein, 25% Fat, 50% Carbs

Answer: (B)

Distributing calories across macronutrients to support energy, tissue maintenance, and metabolic function is the idea here. A common baseline for a balanced diet is 30% protein, 30% fat, and 40% carbohydrates. This ratio keeps protein available for repair and enzyme production, provides fats for essential fatty acids and hormone function, and reserves carbohydrates as the main energy source without letting any single nutrient dominate.

The chosen distribution fits this baseline, offering equal emphasis on protein and fat while carbs supply the larger share for energy. Other patterns shift the balance in ways that don’t align with this standard: too much protein reduces room for fats or carbs, too much carbs can undercut protein/fat needs, and a near-equal split like 33/33/34, while reasonable, doesn’t adhere to the specific balanced framework used here.