Act as a certified nutritionist with 10 years of experience in dietary planning and sports nutrition. Provide a comprehensive analysis of high-protein diets, focusing on their [short-term benefits], [long-term risks], and [suitability for different lifestyles]. Include scientific evidence to support your claims, and debunk common myths such as [protein overload leading to kidney damage] or [high-protein diets being universally effective for weight loss]. Tailor your response to address concerns from [athletes], [sedentary individuals], and [people with pre-existing health conditions]. Offer practical advice on how to balance protein intake with other macronutrients for optimal health.