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Diet and portion control

4
 min read · 
16 November 2025
Diet and portion control
Understanding portion sizes can help you manage your weight without feeling deprived.

What you eat matters for your health, but so does how much you eat.

Why portion control matters

Even healthy foods can contribute to weight gain if eaten in large amounts. Controlling portion sizes helps you:

  • Stay within your body’s energy needs
  • Avoid overeating without having to cut out favourite foods
  • Keep meals balanced with the right mix of nutrients
Building a balanced meal

A simple way to plan portions is to use your plate as a guide:

  • Half the plate: vegetables or salad
  • One quarter: lean protein such as chicken, fish, eggs, beans, or tofu
  • One quarter: wholegrain carbohydrates like brown rice, wholemeal pasta, or potatoes

Adding a small portion of healthy fats, such as olive oil, avocado, or nuts, can also support a balanced diet.

Tips for managing portion sizes
  • Use smaller plates and bowls; this can help you feel satisfied with less
  • Serve food in the kitchen rather than at the table to avoid second helpings
  • Check food labels for recommended serving sizes
  • Eat slowly and stop when you feel comfortably full
  • Avoid eating straight from the packet, as it is harder to track how much you have had
Managing hunger

Portion control should not mean going hungry. You can help manage appetite by:

  • Including protein and fibre in each meal
  • Drinking water regularly
  • Spacing meals evenly throughout the day
  • Choosing snacks like fruit, yoghurt, or a handful of nuts rather than high-sugar options
The bigger picture

Portion control is not about strict rules. It is about finding the right amount for your body, so you can enjoy your meals and still make progress towards your health goals.

Disclaimer

This article is for educational purposes only and should not be used as a substitute for medical advice. Always speak to your doctor, nurse or pharmacist about your individual care. The information reflects NHS and NICE guidance at the time of publication.

Last reviewed: 
November 2025
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