Understanding symptoms of pre-existing conditions during your COVID-19 recovery

Discover nutritional information and resources to help understand and improve symptoms of pre-existing conditions related to COVID-19

Pre-existing symptoms

  • Obesity
  • Diabetes
  • High blood pressure
  • Heart disease

What do these symptoms have to do with my diet?

  • What you eat can influence a condition that you may already have.
  • You may need to follow a particular dietary pattern to manage an existing condition.
  • It is important to consider these existing conditions when making changes to your diet to help manage the symptoms of COVID-19.


The British Dietetic Association Critical Care Specialist group provides eating recommendations after critical illness – Nutrition at Home after Critical Illness [PDF], which may include similar symptoms. 

This includes:

  • tips to lose weight
  • ideas for recipes for heart problems, diabetes or healthy diets.
The Malnutrition Pathway's Managing Adult Malnutrition online resource offers tips for people with:
  • Diabetes
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Lung cancer
  • COVID-19.
Other tips may be applicable if you scored yourself in the Malnutrition Universal Screening Tool (MUST) tool:

Histamine intolerance
The Swansea Bay University Health Board has a Covid and Long Covid recovery – therapy information pack which provides ideas for:
  • weight loss
  • moving and exercise.
Heart Matters provides a 5 steps to sustainable weight loss online resource.

The British Heart Foundation provides advice on weight management and other useful healthy eating information.

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