Diet before donating blood

General rules

A blood test allows you to obtain reliable information about the patient’s health status / presence of the disease at an early stage, both at a particular point in time, and to compare various indicators in dynamics. Very often, the symptoms of the disease have not yet manifested, and blood counts already indicate its presence.

The reliability of the data obtained is determined by many factors, including the correct preparation of the patient for the blood donation procedure. Blood counts are quite sensitive to various changes in the body. Factors that affect blood counts include medications, food, alcohol and smoking, exercise, stress, and in some analyzes, the phase of the woman’s menstrual cycle and even the time of day.

In addition, whole donated blood and its elements are a valuable unique therapeutic tool that many patients urgently need after and during operations or who are in serious condition. It is donor blood that saves the lives of many of us. The diet before blood donation is largely determined by the type of analysis: a general clinical blood test, a blood test for sugar, biochemical, immunological analysis, allergological tests, analysis for the content of hormones, tumor markers, and others.

Donor diet before blood donation

Preparation of the body for blood donation should begin in three days. During this period, it is recommended to introduce boiled chicken or lean beef, low-fat varieties of white fish, fresh / boiled vegetables (except beets), jam, honey, pasta, and cereals into the diet. For one day and directly on the day of blood donation, the donor should exclude from his diet any fried, smoked, fatty and spicy foods, all fish, meat and dairy products, eggs and butter (including vegetable), nuts, chocolate and dates. It is not recommended to use caffeinated drinks (tea, coffee), highly carbonated drinks during this period.

The diet includes crackers, bread, pasta cooked in water without oil, juices, sweet tea with jam, fruit drinks, fruit drinks, mineral water without gas, vegetables and fruits: apricots, pears, apples, pomegranates, plums, prunes and dried apricots (for excluding bananas, avocados, oranges and tangerines). The use of dill and cilantro can negatively affect the result of the study.

The diet before donating blood, as well as before donating plasma, provides for a complete refusal two days before the donation of any alcohol-containing drinks. In the morning on the day of blood donation, breakfast should be light, carbohydrate, and sweet tea should be drunk before the blood donation procedure. You should refrain from smoking one to two hours before blood donation. After donating blood to the donor, a special full-fledged meal is organized at the donor site, including a snack and two hot dishes.

Preparation for blood donation for biochemistry involves more stringent restrictions on the daily regimen and diet. There are a number of differences in patient preparation, depending on the indicators that will be investigated.

Blood test for sugar. Various methods of analysis can be used (rapid analysis, blood glucose analysis, glucose tolerance test with exercise). All sugar studies are conducted on the basis of a 3-day low-carb diet on a background of standard physical activity. Do not starve or overeat before taking the test. A blood test for sugar is given on an empty stomach. Last meal - at least 12 hours in advance. Before the procedure, it is forbidden to take alcohol-containing and coffee drinks, use chewing gum and toothpaste for brushing your teeth.

When donating blood to urea it is necessary to refuse 1-2 days before blood sampling from the use of the liver and kidneys, limit the diet of meat, fish, coffee, tea. When donating blood to alpha-2-macroglobulin it is necessary 3 days before blood sampling to completely exclude all meat food from the diet. When appointing new non-invasive studies of the liver (FibroTest, FibroMax) for 1-2 days, it is necessary to exclude the intake of products that artificially stain the serum (carrots, beets, pumpkins, orange). Not recommended ascorbic acid.

When donating blood to thyroid hormones, it is necessary to exclude iodine-containing products from the diet in 2 days (seaweed, cod liver, hake, legumes, freshwater fish, herring, seafood, parsley, spinach, sorrel, dill, iodized salt). In preparation for a blood test for free testosterone the last meal should be at least 12 hours before the procedure. It is not allowed to consume juice, coffee and tea (especially with sugar). You can drink only water. Taking blood on progesterone produced in the morning on an empty stomach, with an 8-12 hour interval between the last meal with the exception of fats from the diet.

Allowed Products

Before donating blood for analysis, the diet includes buckwheat porridge from the cereal kernel, rice porridge on the water, barley porridge on the water, cooked pasta, wheat bread, sliced ​​long loaf, crackers from white bread, various juices, sweet tea with jam, mineral water without gas, fruit drinks, fruit drinks, vegetables and fruits: apricots, pears, apples, pomegranates, plums, prunes and dried apricots.

Approved Product Table

Proteins, gFats, gCarbohydrates, gCalories, kcal

Vegetables and greens

boiled cauliflower1,80,34,029
boiled carrots0,80,35,025
boiled beets1,80,010,849





Cereals and cereals

oatmeal on the water3,01,715,088
pearl barley porridge on the water3,10,422,2109
white boiled rice2,20,524,9116

Flour and Pasta

cooked pasta3,50,423,2112

Bakery products

sliced ​​loaf7,52,950,9264
white bread crackers11,21,472,2331
wheat bread8,11,048,8242



Raw materials and seasonings

milk sauce2,07,15,284

Meat products

braised beef16,818,30,0232


boiled chicken breast29,81,80,5137
boiled chicken drumstick27,05,60,0158
boiled turkey fillet25,01,0-130

Soft Drinks

mineral water0,00,00,0-

Juices and compotes

apricot juice0,90,19,038
pumpkin juice0,00,09,038
* data are per 100 g of product

Fully or partially restricted products

From the diet per day completely exclude fried, smoked, fatty and spicy foods, all fish, meat and dairy products, canned meat and fish, poultry, rabbit, eggs, animal and cooking oil, butter (including vegetable), nuts, highly carbonated, tonic and caffeinated drinks (tea, coffee, cola, Pepsi), chocolate, dates. Avocados, bananas, oranges, lemons and tangerines are excluded from fruits. From greens - cilantro, dill. The use of alcohol-containing drinks is not allowed.

Prohibited Products Table

Proteins, gFats, gCarbohydrates, gCalories, kcal

Vegetables and greens

legumes vegetables9,11,627,0168
white radish1,40,04,121
celery (root)1,30,36,532



Nuts and dried fruits

dried fruits2,30,668,2286

Flour and Pasta








Raw materials and seasonings

ground black pepper10,43,338,7251

Milk products

dairy products3,26,54,1117
cream 35% (fatty)2,535,03,0337

Cheeses and cottage cheese


Meat products



cured / dried sausage24,138,31,0455


fried chicken26,012,00,0210
smoked chicken27,58,20,0184

Fish and seafood

smoked fish26,89,90,0196
canned fish17,52,00,088

Oils and Fats

vegetable oil0,099,00,0899
cooking fat0,099,70,0897

Alcoholic beverages

dry white wine0,10,00,666
dry red wine0,20,00,368

Soft Drinks

kvass bread0,20,05,227
* data are per 100 g of product

Menu (Power Mode)

The food menu includes only permitted products. There are no special requirements for the culinary processing of products (except for the exclusion of the process of frying food) and the diet.

Advantages and disadvantages

  • Nutrition is physiologically complete, the diet is short-term.
  • Allows you to get an objective blood test.
  • Cooking is standard and does not require special cooking skills.
  • When passing most types of blood tests, you must adhere to a 10-12 hour fast.

Results and reviews

Diet before donating blood allows the donor to make this procedure as sparing as possible and get high-quality donor material. Compliance with the diet before blood donation and diet ensures the reliability of the obtained indicators.

  • "... I’m giving my sugar test again, because they didn’t warn me that you should not use chewing gum. And since blood is being donated to an empty stomach, I wanted to eat something and, excitedly, I chewed the entire packet of chewing gum";
  • "... A donor with 15 years of experience. The procedure and preparation for it, including dietary restrictions, I endure easily and without problems".

Diet price

Affordable, inexpensive products are included in the diet when donating blood and blood for analysis. The average cost of products is 180-260 rubles per day.

Watch the video: How to Eat After Giving Blood (December 2019).

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