To start a new fitness program, a gradual and structured approach is recommended. First, set realistic goals tailored to individual fitness levels and interests, ensuring they are measurable and achievable. Consultation with a healthcare professional or certified trainer can provide personalized guidance and minimize injury risk. Begin with moderate workouts and gradually increase intensity, duration, and frequency to allow the body to adapt safely. Incorporating a balanced mix of cardiovascular, strength, and flexibility exercises fosters overall fitness. Lastly, stay consistent and track progress, maintaining motivation and adjusting goals as needed.