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Unit II · Liver, kidney and heart diets
9 min readConcept sheetFrequent exam case; 'why high carbohydrate?' is a common viva question

Diet in viral hepatitis

In viral hepatitis give high energy and carbohydrate with adequate protein, in small, frequent, low-fat meals, so liver cells can regenerate.

Energy30-35 kcal/kg IBW (usual textbook range), so protein is not burnt for energy
Protein1.0-1.2 g/kg (books vary; some allow up to 1.5 g/kg); not restricted
CarbohydrateHigh, about 60-70% of energy: glucose, sugar, juices, rice, idli; refills liver glycogen
FatModerate: milk fat and measured oil are tolerated; fried foods are not

Aim and principles of the diet

Aim: To plan, prepare and calculate a diet for a young man with acute viral hepatitis who is recovering but has a poor appetite. Principles: In India, acute viral hepatitis is most often due to hepatitis A or E, spread through contaminated food and water. The inflamed liver causes anorexia, nausea, fatigue and jaundice. The diet aims to rest and rebuild the liver and prevent weight loss. Energy is high (30-35 kcal/kg) so protein is not burnt for energy. Carbohydrate is high (about 60-70% of energy) because it is easy to digest, refills liver glycogen and spares protein; glucose, sugar, fresh juice, rice, idli and kanji are well accepted. Protein is adequate (1.0-1.2 g/kg) for regeneration of liver cells; it is not restricted. Older books cut protein if hepatic encephalopathy appears; current guidance (ESPEN 2019) avoids long protein restriction, and the doctor guides the plan. Fat is moderate: fat in milk and a little measured oil is tolerated, but fried and very fatty foods worsen nausea. B-complex vitamins, vitamins C and K and fluids are generous. Meals are small and frequent (6-8 a day). Alcohol is avoided completely. In the first days of severe nausea, a liquid diet of glucose water, juice and kanji is given, then soft food.

Nutrient prescription: Mr. V, 25 y, 170 cm, 60 kg, acute hepatitis A, recovering

NutrientPrescriptionBasis and source
Ideal body weight63 kg(170 − 100) × 0.9
EnergyAbout 2200 kcal35 kcal/kg × 63 = 2205 (usual textbook range 30-35 kcal/kg)
ProteinAbout 75 g1.2 g/kg × 63 = 75.6 (usual textbook range 1.0-1.2 g/kg; some books allow up to 1.5)
CarbohydrateAbout 330-385 g (60-70% of energy)Easily digested sugars and starches; Indian texts commonly give 300-400 g a day
FatModerate: about 15-20% of energy; 15-20 g oilMilk fat and measured oil; no frying
Fluid2.5-3 LMore if vomiting or fever
Meals6-8 small mealsNausea and poor appetite

Foods to include and avoid

Food groupIncludeAvoid
CerealsRice, idli, idiyappam, rice kanji, chapati with little oil, bread, sago, rice flakesPuri, parotta, fried snacks
Pulses and protein foodsDals, moong dal soup, egg white or boiled egg, steamed fish, low-fat paneerFried or fatty meat, rich biryani
MilkToned or skimmed milk, curd, buttermilkCream, butter, khoa sweets
Vegetables and fruitsWell-cooked vegetables; banana, papaya, sweet lime; juices made at homeRoadside cut fruit and juices with outside ice
SugarsGlucose, sugar, jaggery, honeyLimit only if the patient is diabetic
OthersBoiled, cooled waterAlcohol in any form; spicy, oily curries; pickles

Sample one-day menu: viral hepatitis (Mr. V)

TimeMenuApprox. amount (raw)
6.00 amCoffeeToned milk 150 mL, sugar 10 g
8.00 amIdli (4) with sambarRice 80 g + urad dal 20 g; tur dal 15 g, vegetables 50 g, oil 3 g
10.00 amFresh sweet lime juiceJuice 200 mL, sugar 10 g
12.30 pmRice, moong dal, vegetable poriyal, buttermilkRice 100 g; moong dal 30 g; vegetables 100 g, oil 5 g; buttermilk 200 mL
3.30 pmBanana1 medium (100 g)
5.00 pmSago kheerToned milk 100 mL, sago 20 g, sugar 10 g
8.00 pmChapati (3), tur dal, vegetable, egg-white bhurji (or low-fat paneer)Atta 75 g, oil 5 g; tur dal 20 g; vegetables 100 g, oil 5 g; 2 egg whites
9.30 pmMilkToned milk 150 mL, skimmed milk powder 15 g, sugar 10 g

Worked calculation: Mr. V's hepatitis diet

Problem

Mr. V, 25 years, 170 cm, 60 kg, has acute hepatitis A with jaundice. He is recovering but his appetite is poor; there is no encephalopathy. Find his IBW, energy and protein needs and check the 8-meal menu.

Working
  1. IBW = (170 − 100) × 0.9 = 63 kg (he has lost weight to 60 kg, so plan on IBW).
  2. Energy = 63 kg × 35 kcal/kg = 2205, about 2200 kcal (usual textbook range 30-35 kcal/kg).
  3. Protein = 63 kg × 1.2 g/kg = 75.6, about 75 g (usual textbook range 1.0-1.2 g/kg).
  4. Carbohydrate target = 60-70% of 2200 kcal = 2200 × 0.60 ÷ 4 = 330 g to 2200 × 0.70 ÷ 4 = 385 g. With fat kept to about 15-20% and protein near 14%, a low-fat menu like this one lands near the top of the range.
  5. Approximate values used (kcal and g protein per 100 g raw unless stated; rounded from Indian food composition tables, mainly IFCT 2017 and the older Nutritive Value of Indian Foods; a few, such as toned milk, are estimates): toned milk 60 and 3 per 100 mL; sugar 400; rice 355 and 8; urad dal 325 and 23; tur dal 330 and 22; mixed vegetables 30 and 1.5; oil/ghee 900; fruit juice 45 and 0.5 per 100 mL; moong dal 325 and 24; buttermilk 15 and 0.8 per 100 mL; banana 100 and 1.2; sago 350 and 0.2; atta 320 and 10.5; egg white 17 kcal and 3.5 g per piece; skimmed milk powder 357 and 38.
  6. Cereals (rice 180 g, sago 20 g, atta 75 g): 949.0 kcal, 22.3 g protein.
  7. Pulses (urad dal 20 g, tur dal 35 g, moong dal 30 g): 278.0 kcal, 19.5 g protein.
  8. Milk and milk products (toned milk 400 mL, buttermilk 200 mL, skimmed milk powder 15 g): 323.6 kcal, 19.3 g protein.
  9. Egg white (2 egg whites): 34.0 kcal, 7.0 g protein.
  10. Vegetables (mixed vegetables 250 g): 75.0 kcal, 3.8 g protein.
  11. Fruits (fruit juice 200 mL, banana 100 g): 190.0 kcal, 2.2 g protein.
  12. Oil and ghee (oil/ghee 18 g): 162.0 kcal.
  13. Sugar (sugar 40 g): 160.0 kcal.
  14. Energy = 949.0 + 278.0 + 323.6 + 34.0 + 75.0 + 190.0 + 162.0 + 160.0 = 2171.6 kcal.
  15. Protein = 22.3 + 19.5 + 19.3 + 7.0 + 3.8 + 2.2 = 74.1 g.
  16. Compare with the prescription: energy 2171.6 ÷ 2200 × 100 = 99%; protein 74.1 ÷ 75 × 100 = 99%.
  17. Each group is rounded to one decimal and the totals are the sums of those rounded figures; all values are approximate.
Answer

IBW 63 kg; prescription about 2200 kcal and 75 g protein. The menu gives about 2172 kcal (99%) and 74 g protein (99%), in 8 small low-fat meals.

Preparation and serving tips, and result

  • Offer small portions every 2-3 hours; do not force large meals during nausea.
  • Make juices at home with clean fruit and boiled, cooled water; no outside ice.
  • Cook with little oil: steam idli, pressure-cook dal and vegetables, temper with half a teaspoon of oil.
  • Sweeten drinks with glucose or sugar for easy energy, and serve the biggest meal when nausea is least (often in the morning).
  • Result: The hepatitis diet gives about 2172 kcal and 74 g protein in 8 small low-fat meals, meeting Mr. V's prescription of 2200 kcal and 75 g protein.
In the diet kitchen

In the diet kitchen, a hepatitis tray is low-fat and high-carbohydrate: steamed idli, rice, dal, toned milk, juice and sweet kheer. Hygiene matters twice over, because hepatitis A and E spread by the faecal-oral route: boiled water, washed hands and covered food protect other patients and staff.

Exam angle

Short answer: “Why is a high-carbohydrate diet given in viral hepatitis?” Carbohydrate is easily digested, refills liver glycogen and spares protein for regeneration of liver cells; sweet drinks also tempt a poor appetite.

Short answer: “Should protein be restricted in viral hepatitis?” No. Give 1.0-1.2 g/kg for liver-cell regeneration. Older books cut protein if hepatic encephalopathy develops; current guidance (ESPEN 2019) avoids long restriction, and the doctor decides.

Structured question: “Explain the dietary principles in viral hepatitis with a sample menu.” High energy (30-35 kcal/kg), high carbohydrate (60-70%), adequate protein (1.0-1.2 g/kg), moderate fat with no fried food, vitamins and fluids, 6-8 small meals, no alcohol, safe water. Menu: coffee, idli with sambar, sweet lime juice, rice with dal, poriyal and buttermilk, banana, sago kheer, chapati with dal and egg white, milk.

Remember it

Hepatitis = 'High C, enough P, little F, many M': high Carbohydrate, enough Protein, little fried Fat, Many small meals.