Lactose intolerance: 'Is sourdough bread the cause of my lactose intolerance?
Tuesday 24 June 2008
"Having read your answer about lactose intolerance, I wonder if I am suffering from it. I am getting abdominal pain, cramps and gas after I eat sourdough bread (which I bake myself). I do not eat dairy products, but I have heard that sourdough bread contains lactic acid. Could this be the cause?"
Dr Fred Kavalier answers your health question:
Lactose is a natural sugar that is broken down in the small intestine into two other sugars – glucose and galactose – which are absorbed into cells. If you are lacking in lactase, the enzyme that breaks down lactose, then the lactose will remain in the intestine. When it reaches the large intestine it begins to ferment, leading to the production of gases that cause wind, cramps and other symptoms. Sourdough bread does not contain lactose, so your symptoms must have another cause.
Please send your questions and suggestions to A Question of Health, The Independent, Independent House, 191 Marsh Wall, London E14 9RS; fax 020-7005 2182; or email email@example.com. Dr Kavalier regrets that he is unable to respond personally to questions.
Life & Style blogs
Ebola outbreak: Virus to kill 67,000 in Monrovia by December, claims academic study
Watch what happened when food critics were unknowingly served McDonald's
What do the text messages between you and your partner reveal about your relationship?
Controversy over Queen's 'first tweet' at London's Science Museum
Our gums are less healthy than Roman Britons', scientists claim
- 1 Revolutionary lost Caravaggio painting 'Mary Magdalen in Ecstasy' identified
- 2 McKamey Manor: This 'extreme' haunted house is the stuff of nightmares
- 3 Russell Brand says he will 'probably' give up acting to focus on his revolution
- 4 Watch what happened when food critics were unknowingly served McDonald's
- 5 David Beckham's Haig Club whisky is exactly what’s wrong with the Highlands
£110 - £200 per day: Randstad Education Leeds: Secondary Maths Teacher for spe...
£40000 - £50000 Per Annum Excellent benefits: Clearwater People Solutions Ltd:...
£30000 - £35000 Per Annum Excellent benefits: Clearwater People Solutions Ltd:...
£35000 - £40000 Per Annum Excellent benefits: Clearwater People Solutions Ltd:...