Some basic pieces of information are useful to record in a food diary:
This will help identify any patterns that you might want to change, such as a tendency to overeat when out with friends. You might also want to include physical health symptoms, mood, and energy levels, to highlight any connections between food and general health.

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.