Macronutrient

Carbohydrates

Carbohydrates are the body’s main source of energy. Starchy, higher-fibre carbs such as wholegrains, potatoes and pulses should make up a large part of a healthy diet.

Written by Meds Global Health Clinical Team · Clinically reviewed by Dr Muhammad Suffyan, MB BS, Founder & Clinical Director · Last reviewed · How we review

What it is

Carbohydrates are one of the three main nutrients that provide energy. They include starches, sugars and fibre, and are found mainly in plant foods.

What it does

They are the body’s main and preferred source of energy, fuelling the brain, muscles and everyday activity. Higher-fibre carbohydrates also support gut health and help you feel full.

Good sources

Wholegrain bread, pasta and rice, potatoes (with skins), oats, pulses, and fruit and vegetables. Choosing higher-fibre, wholegrain versions is best.

Deficiency and who is at risk

The body needs carbohydrate for steady energy. Very low-carbohydrate diets can cause tiredness, constipation and, in the short term, headaches, though they are sometimes used deliberately for specific reasons under guidance.

Balance

Can you have too much?

Eating a lot of refined carbohydrates and sugary foods can contribute to weight gain and tooth decay. Choosing wholegrain, higher-fibre carbohydrates and watching portion sizes helps.

Education and reference only. This is general nutrition information, not personal advice, and does not give doses. Ask a pharmacist, GP or registered dietitian before starting supplements, especially with a health condition or in pregnancy.

Answers

Carbohydrates: frequently asked questions

Are carbohydrates bad for you?

No. Carbohydrates are the body’s main energy source, and higher-fibre, wholegrain carbs are an important part of a healthy diet. It is refined, sugary carbohydrates that are best limited.

Should I cut out carbs to lose weight?

You do not need to cut them out. Choosing wholegrain, higher-fibre carbohydrates and controlling portions is usually more sustainable. Very low-carb diets suit some people but are best done with guidance.

Related

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Sources

Where this is drawn from

  • NHS — Eat well
  • British Dietetic Association (BDA)
  • UK Scientific Advisory Committee on Nutrition (SACN)

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