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Lactose Intolerant? Get Milk

Date:
January 27, 2000
Source:
Purdue University
Summary:
A glass of milk may be the best medicine for those suffering from lactose intolerance. Dennis A. Savaiano, dean of Purdue University's School of Consumer and Family Sciences and a specialist on lactose intolerance, says that consuming milk can help people recondition their digestive systems to accept dairy foods without discomfort.

WEST LAFAYETTE, Ind. – A glass of milk may be the best medicine for those suffering from lactose intolerance.

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Dennis A. Savaiano, dean of Purdue University's School of Consumer and Family Sciences and a specialist on lactose intolerance, says that consuming milk can help people recondition their digestive systems to accept dairy foods without discomfort.

His studies have found that controlled consumption – such as a half-glass of milk on a full stomach – can help the body build up a tolerance for lactose products.

"If you only consume dairy products once in awhile, you are more likely to have symptoms from them," Savaiano says. "Also, if you consume them by themselves, as opposed to as part of a meal, they tend to be transported throughout the intestine more rapidly and are more likely to cause symptoms."

Intolerance is the result of low adult levels of the digestive tract enzyme lactase, which breaks down the lactose found in milk and converts it into simple sugars that the body can use as energy. Without lactase, undigested lactose ferments in the intestines, causing unpleasant side effects such as bloating, gas and diarrhea.

Most adults don't produce enough lactase to completely break down the lactose from a large dairy meal. In fact, up to three-fourths of the world's population doesn't produce enough lactase to digest large amounts of dairy foods without some discomfort, says Savaiano, who has studied lactose intolerance for more than 16 years.

His studies have found that by consuming smaller amounts of milk several times a day for three or four weeks, lactose-intolerant people can train their digestive systems to break down lactose.

"Our studies have shown a really amazing adaptation of the large intestine of humans," he says. "The large intestines contain bacteria that help digest lactose. By altering the diet over time, bacteria more effectively digest lactose, making milk very well tolerated."

He recommends starting with one-quarter to one-half cup of milk with meals two to three times a day, and slowly increasing milk consumption.

For those people who experience only slight discomfort when consuming dairy foods, Savaiano offers the following tips to improve digestion of milk and dairy products:

• Eat dairy foods in moderation, and avoid eating large amounts at one sitting.

• Eat dairy foods as part of a meal, such as a cup of milk over cereal with fruit, or a glass of milk with dinner.

• Eat yogurts, which are well tolerated because they contain a lactase that helps the body digest lactose in the intestine.

• If necessary, use over-the-counter digestive aids.


Story Source:

The above story is based on materials provided by Purdue University. Note: Materials may be edited for content and length.


Cite This Page:

Purdue University. "Lactose Intolerant? Get Milk." ScienceDaily. ScienceDaily, 27 January 2000. <www.sciencedaily.com/releases/2000/01/000127082535.htm>.
Purdue University. (2000, January 27). Lactose Intolerant? Get Milk. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2000/01/000127082535.htm
Purdue University. "Lactose Intolerant? Get Milk." ScienceDaily. www.sciencedaily.com/releases/2000/01/000127082535.htm (accessed October 25, 2014).

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