How do I control irritable bowel syndrome with diet?
Although there is no particular diet to follow, you can manage your
irritable bowel syndrome (IBS) by limiting or eliminating foods that may bring
on symptoms, particularly diarrhea. In general, you can change your diet based
on whether your main symptom is constipation or diarrhea.
You also can keep a diary of what you eat and how it affects you.
In addition, it helps to make sure that mealtimes are relaxing, which may
prevent stress from bringing on symptoms.
Following a diet to reduce constipation
Taking the following steps may reduce your constipation:
- Add fibre to your
diet. Fibre will absorb water and add bulk to the large intestine,
making bowel movements easier and more frequent than you usually experience.
Eat high-fibre foods such as fresh fruits (raspberries, pears, apples), fresh
vegetables (peas, brussels sprouts), wheat bran, whole-grain breads and
cereals, and beans (such as kidney, pinto, and garbanzo). Increase the amount
of fibre in your diet slowly to avoid excess gas.
- Drink plenty of water. It is also important to drink 6 to 8
glasses of water daily, because fibre absorbs water. Water will keep stools
soft.
- Get regular exercise. Regular, gentle
exercise such as walking, cycling, or swimming helps maintain bowel
regularity.
If it is difficult to eat enough high-fibre foods, try using a
non-prescription fibre supplement or bulking agent that contains crushed
psyllium seed or methylcellulose. Examples include Prodiem and
Metamucil. These products are different from laxatives because they do not
irritate the lining of the intestine. They are safe for long-term use. To
increase their effectiveness, take fibre supplements at the same time you eat.
Although you may find the taste or texture unpleasant, most people get used to
them over time, and the safety and effectiveness may be worth the
inconvenience. Use laxatives (for example, milk of magnesia or bisacodyl—such
as Dulcolax) only when recommended by your doctor.
Not all experts agree that eating more fibre will help reduce or
prevent your symptoms of IBS. For some people who have IBS, eating more fibre
may actually make some symptoms worse, such as bloating. Check with your doctor
before increasing the amount of fibre in your diet. Add fibre gradually so your
body can adjust to the change; if you do not, you may experience bloating.
Following a diet to reduce diarrhea
You may be able to reduce diarrhea if you limit or eliminate the
following foods and beverages:
- Alcohol
- Caffeine, which is found
in coffee, tea, cola drinks, and chocolate
- Nicotine, from smoking
or chewing tobacco
- Gas-producing foods, such as beans, broccoli,
cabbage, and apples
- Dairy products that contain lactose (milk
sugar), such as milk, cheese, and sour cream
- Spicy foods, including
salsas or many ethnic foods that use chile peppers
- Foods high in
acid, such as citrus fruit
- Foods high in fat, including bacon,
sausage, butter, oils, and anything deep-fried
- Sorbitol
and xylitol, artificial sweeteners found in some sugarless candies
and chewing gum
You may try eliminating foods or beverages one at a time to see
whether symptoms improve. If a specific food does not seem to be related to
symptoms, there is no need to continue avoiding it.
You might want to consult a registered dietitian before
eliminating foods from your diet. A dietitian can help you plan a diet to
minimize symptoms while maintaining good nutrition.
If you have trouble digesting dairy products, you may have
lactose intolerance, a condition that occurs when
people have symptoms (such as gas, abdominal pain, and bloating) after
consuming foods that contain lactose. If you avoid eating dairy products, be
sure to get enough calcium from other sources, such as a calcium supplement or
yogourt. Some of the lactose found in yogourt has already been digested by the
yogourt cultures, so yogourt may not cause symptoms.
Keeping a food diary
Some people with IBS use a daily food diary to keep track of what
they eat and whether they have any symptoms after eating certain foods. The
diary also can be a good way to record what is going on in your life. Stress
plays a role in IBS: if you are aware that particular stresses bring on
symptoms, you can try to reduce those stresses.
Maintaining a pleasant mealtime environment
Try to maintain a pleasant environment when you eat. This may
reduce stress that can make symptoms likely to occur. Give yourself plenty of
time to eat, rather than eating on the go. Chew your food slowly. Try not to
swallow air, which can cause bloating.
Test Your Knowledge
Caffeine can trigger IBS symptoms.
- True
- False
Increasing fibre in the diet does not improve symptoms of irritable bowel syndrome in everyone.
- True
- False
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