Your body needs a certain amount of each of carbs, fats and protein to be healthy. Beyond that minimum, your body can usually substitute between the three macro-nutrients to get the energy it needs. So long as you are within the recommended ranges for carbs, fats and protein, and are meeting your overall calorie targets, you should be fine.
Exercise does tend to drive the body's need for protein higher though. Most nutritionists recommend a maximum daily calorie deficit of 1000 calories (on average), so if Spark is recommending a higher intake, it is for sound reasons.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
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