A healthy and balanced diet is essential for the overall growth and development of individuals. Among healthy people, diet may affect their health as this may predispose them into developing certain conditions or comorbidities such as the various cardiovascular diseases or diabetes mellitus. However, for patients who already have comorbidities, diet can cause significant alterations in their metabolites which may lead to symptomatic presentation or exacerbation of their conditions. Derangements in the metabolic and electrolyte regulation of these patients with chronic conditions may lead to poor outcomes and, hence, may need management including anticipatory or maintenance care.