Medical Nutrition Therapy: 100 Gram Fat Diet for 72 hour Fecal Fat Collection
The fecal fat test will help find out if you have steatorrhea (that is, excess fat in bowel movements due to the body not being able to absorb fat). To test the amount of fat in your bowel movements, you need to eat as close to 100 grams of fat each day as possible, and will need to record everything that you eat and drink for a few days.
1. Start 100 gram fat diet and follow for 4 days.
2. On the second morning of the 100 gram fat diet, start stool collection and collect all stool for the remaining 3 days. (See stool collection instructions)
3. Write down everything you eat and drink immediately on the sheets provided.
4. Record each food on a separate line.
1. Start each day on a new page.
2. If more space is needed for the same day, continue onto the next page and note clearly that it is a continuation.
3. Record brand names, if known. Read labels for fat content.
4. Always specify method of preparation. Examples include: baked, broiled, fried, breaded, sautéed.
5. If eating out, record foods eaten as accurately as possible, and note name of restaurant.
6. Describe all foods as fully as possible. For example: 3 oz. baked chicken, thigh, skin not eaten.
7. List all ingredients for sandwiches, casseroles and other mixed dishes.
8. Record exact amounts. Specify weight (e.g. 1 oz cheddar cheese), or volume (e.g. 4 oz or half-cup orange juice) or dimensions in inches (e.g. 1 piece of banana bread, 3”L x 4”W x 1/2”thick).
9. Include all additions to food at the table. For example, gravy, sauces, butter, sugar.
10. Aim for as close to 100 grams fat each day as possible.
Meats: Each of these = 5 grams fat:
Beef, pork, veal, poultry, fish, wild game, cheese - 1 oz
(Note: typical serving = 3 ounces, which is about the size of a deck of cards)
Egg - 1
Bacon - 1 slice
Hot dog, beef/pork - 13-16 grams
Hot dog, chicken/turkey - 8 grams
Dairy: Each of these = 5 grams fat:
Whole Milk – half cup
2% Milk – 1 cup
Cheese - 1 oz (about the size of a Kraft© single)
Cottage cheese, 2% fat - 1 cup
Cream cheese - 1 tbsp
Half and half - 3 tbsp.
Cream, heavy, whipping - 1 tbsp
Sour cream - 2 tbsp
Margarine, butter - 1 tsp.
Margarine, diet - 1 tbsp.
Nuts and Seeds. Each of these items = 5 grams fat:
Peanut butter - 2 tsp
Peanuts - 20
Almonds, dry roasted - 6 whole
Cashews, dry roasted - 1 tbsp.
Sunflower seeds, without shell - 1 tbsp.
Coconut, shredded - 2 tbsp
Other. Each of these items = 5 grams fat:
Mayonnaise - 1 tsp. .
Mayonnaise, reduced calorie - 1 tbsp. .
Salad dressing, mayonnaise type - 2 tsp. .
Salad dressing, mayonnaise type,
reduced calorie - 1 tbsp.
Salad dressing - 1 tbsp.
Salad dressing, reduced calorie - 2 tbsp.
Oil - 1 tsp. .
Avocado - 1/8 medium
Coffee whitener, powder - 4 tsp.
Coffee whitener, liquid - 2 tbsp.
Potato chips, 1 oz - 8-11 grams
Tortilla chips, 1 oz - 7 grams
Doughnut, glazed - 11 grams
Pie, apple, 1/8 - 12 grams
McDonald’s, quarter pounder, - 20 grams
McDonald’s, 6 chicken nuggets - 16 grams
McDonald’s French fries, regular - 12 grams
Pizza Hut, cheese, pan, medium, 2 slices - 18 grams
Pizza Hut, pepperoni, regular crust ,medium, 2 slices - 23 grams
Taco Bell, soft taco - 12 grams
Taco Bell, nachos - 18 grams
Taco Bell, burrito, beef - 21 grams
Taco Bell, tostada - 11 grams
Vanilla ice cream, 1/2 cup - 7 grams
If you eat a food that is not on the list, consult the food label to determine the amount of fat grams. Be sure to note the serving size and the amount of fat per serving.
What is the most important thing you learned from this handout?
What changes will you make in your diet/lifestyle, based on what you learned today?
If you are a UW Health patient and have more questions please contact UW Health at one of the phone numbers listed below. You can also visit our website at www.uwhealth.org/nutrition
Nutrition clinics for UW Hospital and Clinics (UWHC) and American Family Children’s Hospital (AFCH) can be reached at: (608) 890-5500.
Nutrition clinics for UW Medical Foundation (UWMF) can be reached at:
Please print out the PDF of this document to include the Three Day Food Record and Instuctions for Collection.
The information provided should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Any duplication or distribution of the information contained herein is strictly prohibited.
Last Updated: 10/18/2013
Copyright © 04/29/2013 University of Wisconsin Hospitals and Clinics Authority. All rights reserved. Produced by the Department of Nursing. HF#395
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