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Lactose Intolerance

 

Lactose: Friend or Foe | Symptoms of Lactose Intolerance | Definitions

How to Know for Sure - Diagnostic Test | People are Not All Alike

Tips to Manage Lactose Intolerance | Cooking Tips | Nutrition Tips

Eating Away from Home | Feeling Better | Resources

 

Dear Shopper:
Most of us take food for granted. We eat what we like, when we like, as much as we like! But if you suspect that the food you enjoy is making you sick, the questions become "How do I know for sure?" and "Which foods are safe?" In this section you'll find answers to your questions about lactose intolerance, a fairly common inability to digest the natural sugar in dairy products.

Don't jump the gun and assume you are lactose intolerant without a complete work-up by your physician. After all, there could be something else to blame.

If lactose intolerance is your problem, keep in mind that it is often not an "all or nothing" issue. Just because a large glass of milk on an empty stomach causes symptoms doesn't mean that smaller amounts will be a problem. Read on and learn how to make this special diet easier to swallow.

Jane Andrews, M.S., R.D.
Corporate Nutritionist
Wegmans Food Markets, Inc.

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Lactose: Friend or Foe?
Many people never need to think twice about lactose, the sugar naturally found in milk. They can drink a glass of milk two or three times a day, without any problem. For them, milk is fully digested in the intestines where lactose is broken down by the lactase enzyme and absorbed into the blood stream.

What if your intestine doesn't produce enough lactase enzyme? Then you may have trouble digesting milk or anything else that has lactose in it. You won't be alone; lactose intolerance affects 30 to 50 million Americans. As we get older, our bodies tend to produce less lactase enzyme. This is especially true for certain ethnic groups, such as people from Asian, Native American, African American and Jewish decent. Specific diseases and medications can also reduce the body's production of the lactase enzyme.

When people have discomfort after eating lactose foods, they have lactose intolerance. This is not the same as an allergy to milk. (see Definitions). It is important to note that the information in this brochure does not apply to people with milk allergies.

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What are the Symptoms of Lactose Intolerance?
Diarrhea, bloating, cramps and "gas" can start as soon as 30 minutes but usually 1-2 hours after eating foods containing lactose. Without enough lactase enzyme, much of this lactose passes undigested into the large intestine where it absorbs water and becomes food for bacteria. Gas and acids form causing abdominal discomfort along with diarrhea.

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Definitions

Casein is a protein that is found in dairy products such as milk, ice cream, cheese and yogurt. It may also be found in ingredients that are derived from milk. You'll need to read labels and look for words and/or ingredients that may indicate the presence of milk proteins. For more information on how to use our Lactose-Free List as a starting point for shopping for casein free foods, check out our FAQs.

Lactose is the natural sugar in milk.

Lactase is an intestinal enzyme that digests milk sugar into simpler sugars that can be absorbed into the blood.

Enzymes are proteins found in all plants and animal cells. They help start and keep chemical reactions going.

Lactose Maldigestion means that there is not enough lactase enzyme to digest lactose. There are three different types:

Lactose Maldigestion is when a person has low lactase activity. Formerly classified as lactose malabsorption. May or may not have symptoms.

Lactose Intolerance refers to the discomfort a person may experience due to lactose maldigestion. It's possible to have some degree of maldigestion, but not experience lactose intolerance.

Milk Allergy (unrelated to lactose intolerance) is the immune system's reaction to the protein, not the lactose, in milk and dairy products. Symptoms may include: asthma, bronchitis, coughing, sneezing, constipation, diarrhea, gastroesophageal reflux, vomiting, hives or poor growth in children.

Milk allergy is very different from lactose intolerance, and all dairy containing foods must be avoided. Contact your physician if you suspect a milk allergy.

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How to Know for Sure: Diagonstic Test
Think lactose intolerance is making you uncomfortable? First check with your physician. Other more serious medical conditions can cause similar symptoms. If needed, your physician may order a diagnostic test (measuring lactase enzyme activity). These tests commonly use a large amount (50 grams) of lactose—like drinking 4 (8 oz each) glasses of milk at one time! That's why a positive test does not necessarily mean that smaller amounts of lactose won't be tolerated.

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People are not alike!

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Tips to Manage Lactose Intolerance

Tips | How to Read Food Labels |Lactose-Containing Foods | Questionable Foods

Foods That May Contain Lactose | Low Level Lactose Foods

SAFE Foods and Ingredients | Lactose-Free Foods

Tips:

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How to Read Food Labels
You won't see the lactose listed as part of "Nutrition Facts." Steer clear of lactose by investigating the "Ingredients" that are listed just below the Nutrition Facts. Since lactose is milk sugar, the most obvious sources are dairy products (such as milk and whey). See the chart below for common sources of lactose.

Federal labeling requires that ingredients be listed by the greatest in weight first to the least weight last. If the first four ingredients are not milk-based, the amount of lactose in the product will be small. Use caution until you know what level of lactose is tolerable.

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Lactose-Containing Foods

Product
Serving Size
Lactose in grams
Sweetened condensed milk (undiluted)1 cup30
Evaporated milk (undiluted)1 cup24
Yogurt (low fat milk)1 cup15
Low fat or non fat milk1 cup12
Whole milk1 cup11
Yogurt (whole milk)1 cup11
Buttermilk1 cup10
Ice milk1/2 cup9
Ice cream1/2 cup6
Whey, sweet dry1 Tbsp6
Ricotta cheese1/2 cup3-6
Half 'n half cream2 Tbsp1.25
Light cream2 Tbsp1
Whipping cream2 Tbsp.75
Cottage cheese1/2 cup3
Orange sherbet1/2 cup2
American cheese1 oz2
Blue cheese1 oz1
Mozzarella cheese1 oz0.8
Cream cheese2 Tbsp0.8
Whey, sweet liquid1 Tbsp0.8
Swiss cheese1 oz0.5
Cheddar cheese1 oz0.5
Butter2 pats0.1
Margarine2 patstrace

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Questionable Foods
"Non-Dairy" is no assurance that the product is lactose free. A product labeled "Non-Dairy" often means the milk fat has been replaced by a vegetable fat. "Non-Dairy" products may contain other ingredients, such as whey, which contain lactose. Always double check the ingredient statement!

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Foods That May Contain Lactose
Check the ingredient list before purchasing any of these foods, supplements or medications.

*Lactose is used as a bulking agent, a tablet-binding agent or coating for pills. Look under "inactive" or "other" ingredients. If lactose is listed, or if other ingredients are not specified, avoid the product and consult your pharmacist or physician.

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Low-Level Lactose Foods
Total avoidance of lactose may not be necessary. The following foods containing low levels of lactose may be okay depending on your tolerance level.

Cheese with trace levels (less than 0.5 gram lactose) Natural, aged cheese (such as Cheddar, Parmesan and Swiss) can be digested by many people with lactose intolerance. During the cheese making process, most of the lactose is drained off with the whey (a liquid portion). The small amount that remains in the curd is changed to lactic acid during ripening (aging) of cheese. Only trace amounts of lactose remain.

Cheese with low levels (less than 5 grams lactose) Fresh unripened cheese (such as mozzarella, cream cheese and ricotta) are not aged. Only part of the lactose that remains in the curd has a chance to convert to lactic acid. Cottage Cheese, also a fresh unripened cheese, generally has additional milk or cream mixed with the curd. Therefore, fresh cheeses contain more lactose than aged cheeses.

Processed cheese foods and cheese spreads are made by melting natural cheese to stop the aging process and then adding other ingredients, including whey or milk. Cheese foods and cheese spreads contain lactose.

An easy way to check for lactose in cheese is to look at the Nutrition Facts under "Sugar" Since the sugar in cheese is lactose, you can easily see how much lactose the cheese contains. If the sugar is listed as zero, then the cheese contains no more than half a gram of lactose per ounce. Compare to 12 grams of lactose in an 8 ounce glass of milk.

Yogurt contains some lactose but part has been converted to lactic acid by the bacterial cultures that have been added. Also, some yogurt manufacturers add the lactase enzyme to yogurt which can aid in the digestion of yogurt. Unfortunately, all yogurts are not produced the same. Some chocolate yogurts in the dairy case and many frozen yogurts are repasteurized which reduces the amount of bacterial culture in the product. These should be used with caution. Always look for the words "Live and Active Cultures" on the label when purchasing yogurt.

Enzyme-Treated Milk has had a lactase enzyme product added that breaks down the lactose before you drink it. You can buy the enzyme yourself and pre-treat your milk or take it with lactose-containing foods. Lactaid and Dairy Ease are two brand name products available over-the-counter in the antacid section.

The following are treated products available in the dairy section:

Lactaid Brand

Upstate Milk for Life Brand

Facts about lactose-reduced products:

Milk Substitutes

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SAFE Foods and Ingredients
Lactic acid; lactate, lactalbumin and calcium lactate compounds DO NOT contain lactose.

"Pareve" or "Parve" Labeled Foods
Because Jewish dietary laws require separation of meat and milk, the "Pareve" marking is used to identify products that contain neither meat nor dairy-based ingredients.

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Lactose-Free Foods
Although not required, some products may be labeled as "Lactose Free." These products do not contain any lactose-containing ingredients. Fresh plain meats, poultry, fish, fruits and vegetables NEVER contain lactose!

Here are just some examples of lactose-free foods available at Wegmans.
Special Note: Products may be reformulated. Always re-check the ingredient statement before purchasing.

 

Wegmans Nature's Marketplace
In selected stores there is a section called "Nature's Marketplace" which specializes in natural foods. Here you'll find products appropriate for people with food allergies and intolerances. For example, we carry a wide assortment of vegetarian items that are lactose-free.

 

Some of the Lactose-Free Products available in Nature's Marketplace include:
  • Soy, rice and almond beverages
  • Van's Frozen Belgian Waffles
  • Tofutti Non Dairy Frozen Desserts
  • Rice Dream Non Dairy Frozen Dessert
  • Amy's Frozen Beans and Rice Burrito
  • Amy's Frozen Tofu Vegetable Lasagna
  • Amy's Soy Cheese Pizza
  • Advantage 10 Roasted Vegetable Pizza (without cheese)
  • Shedd's Willow Run and Hain Margarines
  • Honey Almond Elegant Rice Pudding
  • Imagine Foods Pudding
  • Health Valley Raisin Oatmeal Cookies
  • Veggie Grated Parmesan Cheese Alternative
  • Arrowhead Mills Pancake and Baking Mix
  • Carob Morsels
  • White Wave Silk Yogurts
  • Tofutti Cream Cheese Alternative
  • Imagine Creamy Soups
  • Silk Soy Milk Creamer
  • Tofu-rella Soy Mozzerella

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Here are just a few of the many lactose-free breads that we carry at Wegmans.

Food You Feel Good About Breads from our Central Bakery:
  • Wegmans Sliced Italian Bread
  • Wegmans Country Wheat
  • Wegmans Lite Wheat Bread
  • Wegmans Lite Italian Bread
  • Wegmans White and Wheat Pitas
  • Wegmans Lite, Wheat and Regular English Muffins
  • Wegmans Honey Apple Oat Bread
  • Wegmans Big and Crispy Frozen Bagels
  • Wegmans Pizza Dough

Other Products from our Central Bakery

  • Wegmans Frozen Bagels
From In-Store Bakeries
  • Farmstyle Bread
  • Baguette
  • Pani Italian
  • Pumpernickel
  • Rye
  • Challah

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Wegmans Brand lactose-free product list

Dairy

Margarine

Creamers

Cheese

Desserts

Frozen

Pudding Mixes (prepared with a lactose-free milk)

Cake Mixes

Frostings

Cookies

Pie Crust

Frozen Foods

Snacks

Miscellaneous

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Cooking Tips

Cooking can sometimes be a problem with lactose intolerance. Baked goods are especially difficult because many ingredients commonly used contain lactose.

If the recipe calls for:
Substitute this:
1 cup milk (for baking or cooking)1 cup soy milk
1 cup milk (for yeast dough)1 cup ginger ale
1 cup buttermilk1/2 cup milk substitute + 1/2 cup water + 1 Tablespoon vinegar or lemon juice
1 cup sour cream1 cup plain yogurt
1 cup cream cheese, ricotta or cottage cheese1 cup tofu, cream cheese substitute
milk chocolatedark or semi-sweet chocolate

 

Nutrition Tips

The key to good nutrition is variety! Dairy products are important for several essential nutrients, including protein, riboflavin (a B vitamin), vitamin D, and most importantly, calcium. For better health in years to come, it's wise to find other ways to get these nutrients. A registered dietitian can see how your diet measures up and share suggestions to help you stay healthy.

Protein-rich foods include meat, poultry, fish, eggs, legumes (dried beans), and soy products. Each 8 ounce glass of milk has the same amount of protein in 1 ounce of meat or fish.

Riboflavin-rich foods include yogurt, meat, spinach and mushrooms.

Vitamin D helps the body absorb calcium. Since this vitamin is also produced from sunlight, people who are rarely out in the sun are at greatest risk for vitamin D deficiency. Look for vitamin D fortified foods or consider taking a vitamin D supplement.

Calcium's role in bone health is not limited to children. Each year more than 1.5 million Americans have fractures because of thin, brittle bones, a condition known as osteoporosis. Several studies have shown a high incidence of osteoporosis among people with lactose intolerance. A diet low in calcium and vitamin D puts you at greater risk for osteoporosis.

Dietary Reference Intake (RDI)

 
Calcium (in milligrams)
Percent Daily Value (%DV)
Children  
1-3 years50050%
4-8 years80080%
9-18 years1,300130%
Adults  
19-50 years1,000100%
51-70 years1,200120%
On estrogen1,000100%
65 plus years1,500150%

Source: Dietary Reference Intake for Calcium, Phosphorus, Magnesium, Vitamin D and Fluoride, National Academy of Sciences, National Academy Press, Washington, D.C., 1997.

Low Lactose Sources of Calcium

One of the best sources of calcium is the lactose-reduced or lactose-free milk. Some lactose-reduced milk has extra calcium added. Low-lactose cheeses and yogurt are also good sources of calcium. Non-dairy sources of calcium include dark green leafy vegetables, oysters, tofu, salmon, sardines, shrimp, almonds or calcium-fortified orange juice.

Food
Amount
Calcium (in milligrams)
Percent Daily Value (%DV)
Yogurt, Low Fat1 cup41542%
Cheese, Swiss1-1/2 oz40841%
Cheese, Cheddar1-1/2 oz30631%
Lactaid Milk1 cup30030%
Sardines with bones2 oz.21722%
Salmon with bones2 oz.13514%
Tofu1/2 cup13013%
Turnip Greens, cooked1/2 cup9910%
Almonds1/4 cup949%
Kale, cooked1/2 cup909%
Okra, cooked1/2 cup505%
Broccoli, cooked1/2 cup364%
Whole Wheat Bread1 slice202%

Consider a calcium supplement food is the best way to get calcium, but if you need a supplement...

Limit doses to no more than 600 milligrams (60% Daily Value). Your body can't absorb larger amounts at one time.

Take with meals to help the calcium tablets dissolve and improve absorption. Food helps stimulate production of the stomach acid needed to dissolve calcium supplements. This is especially important for older adults.

Add vitamin D unless you're already taking a multivitamin. Choose a supplement with between 200 to 400 International Units (50-100% Daily Value) vitamin D.

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Eating Away from Home

Whether you're dining out or eating take-out food at home, it pays to ask questions!

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Feeling Better

After symptoms have disappeared and you're feeling better, you may be advised to add a small amount of one food at a time back into your diet for a few days. The serving size will be adjusted as you work hand in hand with your physician or registered dietitian to determine your individual tolerance.

Above all, READ LABELS! There are many everyday food products on the supermarket shelves that are suitable for someone on a lactose restricted diet…if you take time to check the ingredient lists.

RE-CHECK LABELS! Food companies may change ingredients. If so, the ingredient list will also be changed -without any other apparent change on the label. Once you become familiar with the words to watch out for, it only takes an extra minute to make certain a package of food is okay.

When in doubt, write to the food company (the mailing address is just below the ingredient list on the package label), check with your physician, or call a registered dietitian at your local hospital or health department.

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Resources

Hotline
For answers to nutrition question call the American Dietetic Association Consumer
Hotline at 1-800-366-1655. Pre-recorded messages and voice mail allow consumers to
get answers to their nutrition related questions.

Websites
Check out our Lactose Free Recipes and Prepared Foods, or other helpful nutrition information at our personalized website: Recipes

Contact the American Dietetic Association at www.eatright.org

Recommended Readings
Dobbler M, Lactose Intolerance, American Dietetic Association, 1997.

Baird P, Be Good To Your Gut, Blackwell Science, 1996.

Brody J, Personal Health, in New York Times, May 28, 1997, p. C9.

Carper S, Milk Is Not For Every Body, Penguin Group, 1996.

Aranda-Michel J, Living Well with Lactose Intolerance, Mass Market Paperback, 1999.

Updike S, The Lactose Free Cookbook, Warner Books, 1998.

Other Sources of Information
The Dairy Council, "Managing Lactose Intolerance," Dairy Council Digest 65 (1994):9-11.

Aurisicchio L, Pitchumoni CS; "Lactose Intolerance" in Postgraduate Medicine 95 (1994):113-120.

Hoyer GE. "The Clinical Significance of Disaccharide Maldigestion" in American Journal of Clinical Nutrition 59 (1994):735-415.

Moron A, "Tummy Troubles: What's Your Gut Reaction?" in Current Health 22 (1995):30-32.

Ozsoylu S, "Yogurt Can Be Used for Lactose Intolerance" in Archives of Pediatric and Adolescent Medicine 148 (1994):660.

"For the Love of Dairy" Lactaid Inc.:1996.

"Can You Become Lactose Intolerant as an Adult?" Tufts University Newsletter: October 1999.

"Milk (Milk?) May Ease Lactose Intolerance" HealthSCOUT@eDiets. Feb 2000.

McBean L, Miller G, "Allaying fears and fallacies about lactose intolerance" Journal of the American Dietetic Association 671-676 (1999).

Miller G, Jarvis J, McBean L, Handbook of Dairy Foods and Nutrition, National Dairy Council 1999 .

Have questions or comments? Contact Us.

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