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 does it have to do with my nutrition and diet?

  • What you eat can influence a condition that you may already have.
  • 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]. This can be useful for:

  • 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.

You can watch a talk by a Professor of Nutritional Immunology, who addresses the question: 'Is there an anti-inflammatory diet?'.

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