|






|
| Vitamin K Regulated Diet
Purpose
Vitamin K is essential for the proper formation of blood clots
in the body. The K in vitamin K, which was discovered by a Danish scientist,
comes from the Danish word, koagulering, which means "clotting."
The liver makes a protein called prothrombin, which is a vital
link in the clotting process. Vitamin K is used by the liver to make prothrombin. There are a
number of medical conditions in which prevention of excessive
clotting within the body is desirable. Blood clots within the heart,
arteries and veins can lead to heart attacks, strokes and phlebitis.
One of the drugs used to prevent clot formation is a blood thinner
called warfarin (trade name Coumadin). Warfarin interferes with the
formation of prothrombin in the liver. As everyone who takes warfarin
knows, they must get a blood test called a prothrombin time (pro time
or P.T.) to be sure of the correct dose of warfarin. Too much
warfarin leads to unwanted bleeding. Too little means that clotting
is not prevented.
So why is vitamin K in the diet important to a patient on
warfarin therapy? Simply because if too much vitamin K is eaten, it
interferes with the action of warfarin, thus lowering the P.T. and
making the blood more likely to clot.
Nutrition Facts
The recommended dietary allowance for vitamin K is 65
micrograms (mcg) for women and 80 mcg for men. Some of the vitamin K the body
uses is produced by bacteria in the digestive tract, but most comes from food.
With proper food selection, a vitamin K-regulated diet can be varied and adequate
in all nutrients.
Special Considerations
While taking anti-clotting medications, it is not necessary to avoid vitamin
K-containing foods altogether. Just keep consumption of vitamin K fairly consistent,
rather than consuming a lot one day and very little the next. This will allow
the medication to work and keep blood clotting function consistent. Regular
blood tests to monitor blood clotting time for potential dangerous fluctuations
is important. Keeping a food diary can be very helpful in monitoring the potential
interaction between diet and medication. If the P.T. becomes too low, check
with the physician and keep a record of your own food intake. It may be you
are eating too much of vitamin K-containing foods.
Foods High in Vitamin K |
The foods highest in vitamin K are green leafy
vegetables
|
Food
Kale, 1 c. raw
Swiss chard, 1 c. raw
Collard greens, 1/2 c. cooked
Spinach, 1/2 c. cooked
Brussels sprouts, 5 sprouts
Watercress, 3 c. raw
Endive, 2 c. raw chopped
Scallion, raw, 2/3 c. chopped
Broccoli, 1/2 c. cooked
Coleslaw with dressing, 3/4 c.
Cabbage, 2/3 c. cooked
Asparagus, 7 spears, cooked
|
Vitamin K micrograms
540
500
440
360
289
250
231
207
113
100
98
80
|
Sample Menu |
Breakfast |
Lunch |
Dinner |
- orange juice 1/2 cup
- oatmeal 1 cup
- whole wheat toast 2 slices
- butter 1 tsp
- sugar 1 tsp
- skim milk 1 cup
- banana 1 med
|
- spaghetti with marinara
sauce 1 1/2 cups
- jello salad1/2 cup
- Italian bread1 slice
- butter 1 tsp
- apple 1 med
- grape juice1/2 cup
- skim milk 1 cup
|
- broiled chicken breast 3 oz.
- pasta salad 3 oz
- green peas 1/2 cup
- whole wheat roll 1
- pumpernickel bread 1 slice
- butter 1 tsp
- peach cobbler 1/2 cup
- skim milk 1/2 cup
|
| |
|
Snack |
| |
|
|
|
This Sample Diet Provides the Following
|
Calories
|
1964
|
Fat
|
41 gm
|
Protein
|
84 gm
|
Sodium
|
66 mg
|
Carbohydrates
|
324 gm
|
Fiber
|
27 gm
|
|
|