Signs of a healthy body weight include a balanced body mass index (BMI), appropriate body fat percentage, and the absence of weight-related health conditions. Additionally, maintaining good energy levels, adequate physical fitness, and positive mental health are indicators of a healthy weight. Healthy body weight should also align with individual factors like age, gender, and lifestyle. It is essential to remember that health encompasses more than mere numbers and involves holistic considerations of physical, mental, and emotional well-being.