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Find advice on managing your diet to suit the specific needs of your condition.
Nausea and vomiting
Nausea is the queasy feeling in the back of your throat or in your stomach. Left alone, nausea can cause vomiting.
Nausea and vomiting can result in dehydration, as well as a lack of appetite. It is important to discover ways to help you tolerate food intake and improve the experience.
If you are vomiting, it is important to drink plenty of hydrating liquids during the day to replace the water in your body.
- Eating dry foods such as toast or crackers
- Eating small, frequent meals
- Drinking fluids and sipping them slowly during meals, rather than on an empty stomach
- Food or drinks containing ginger (e.g., crystallised ginger, ginger tea or ginger biscuits) – this may help to reduce the feelings of nausea (unless on certain blood-thinning medication)
- Greasy, fatty or fried foods
- Food with unpleasant or strong odours
- Eating large meals
- Eating infrequently
- Eating too quickly
- Wearing tight or restrictive clothing
- Lying flat after eating
- Preparing food when you are feeling sick (ask your family or friends to help with cooking food or make food in bulk to freeze for times when you are unable to cook)
More information about managing nausea and vomiting, view the guide below.
Loss of appetite and taste
A lack of appetite can result in inadequate consumption of essential nutrients. Loss of taste and taste distortion can impair your eating habits or decrease your food intake, stopping you from consuming adequate nutrients your body needs to function.
It is important to find ways for you to eat and ensure a balanced nutritional intake.
- Eating small but frequent meals – aim to have six small meals or snacks a day
- Planning meals to include your favourite foods
- Eating high-calorie foods in your meal first
- Having a milky drink, if you can’t manage a meal
- Choosing high-protein and high-calorie snacks
- Getting some fresh air – this may stimulate your appetite
- Skipping meals
- Having a drink while eating or before a meal which may make you feel bloated and full
Impact of Vitamin D deficiency
Vitamin D helps our body to absorb calcium and phosphate from our diet and is essential for healthy bones, teeth and muscles.
Vitamin D is naturally present in a small number of foods, such as oily fish and red meat, but it is difficult for us to get the recommended amount of vitamin D through food alone. Our main source of vitamin D is from the action of direct sunlight on our skin when we are outdoors.
The sun in the UK may not be strong enough for our body to make enough vitamin D. As such, Public Health England recommends adults to consider taking a daily supplement of vitamin D.
For more information on Vitamin D deficiency, as well as all other topics covered on this page, please download our nutrition guide: 'Making every mouthful count'
NP-GB-103032 V2 | March 2026