Health is a topic of the importance of which should not be underestimated. However, with such a huge amount of information available to the wide audience online, it is hard to make sense of all of the contradicting facts and theories. One day there is new research that suggests the harmful impact of gluten on your body, the next day another research proves it wrong. So if you want to write some essays on this topic, it is better to rely on data that has been approved by the scientific community and is reliable. Check academic papers published in numerous journals of relevant scientific focus. Outline the issues you want to write about, make sure to build a clear structure in your essay, with a comprehensive introduction, main body, and conclusion. Getting acquainted with samples of similar writings will not hurt either.