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I do not see a lot of information on diet and it's affects on poems. Having said that, a diet high in healthy fats such as olives, avocado, walnuts are important. Green leafy vegetables and fruits to keep nutrition wholesome are important as often poems will take a lot of your calories leaving you perhaps too slim. Macro nutrition may be the way to go where you eat many foods high in nutritional value (chia seeds, hemp).
Any change in your diet warrants a discussion with your doctor or a nutritionist.