Red lentil soup (mercimek)
A smooth, gentle soup of red lentils, usually served with lemon.
Well-cooked hot dish

Ingredients
- red lentils
- onion
- carrot
- potato
- butter
- stock
- pepper
- salt
- lemon
How it is prepared
The lentils are simmered with vegetables until soft and blended smooth.
Food safety with low immunity
How to prepare it during treatment
With mouth sores, serve it without lemon.
Your diet during treatment is agreed with your doctor. Sample 7-day menu for the treatment period →
Storage
Cool quickly (within 2 hours), refrigerate in shallow containers and eat within 1–2 days; with low counts many teams advise 24 hours. You can freeze portions.
Reheating
Reheat only once — bring to the boil, stirring. It should be steaming hot, not just warm.
Symptoms it may suit
- Nausea. Mild and not too greasy; can be eaten in small portions, warm or at room temperature.
- Mouth sores. Soft and moist; easier to eat without spicy or sour additions.
- Constipation. Fibre (pulses, vegetables, grains) may help with constipation — together with enough fluids.
- Low appetite. Gives a lot of energy and protein in a small portion — can help when appetite is low.
These are general observations: what suits you can change from day to day.
Treatment phases
- Before treatmentmay suit
- During a coursemay suit
- Low counts (neutropenia)Freshly cooked and hotmay suit
- Between coursesmay suit
- After treatmentmay suit
Phase notes are general. During low counts, follow only your care team’s food rules.
If you have other conditions
- Stomach and gut. High in fibre. With bowel inflammation, diarrhoea or after bowel surgery, discuss suitability with your team.
- Kidney disease. Can be a source of potassium (tomato, potato, pulses, dried fruit). With kidney disease, discuss potassium limits with your team.
- Stomach and gut, Lung disease. Pulses or cabbage can cause wind and bloating; keep this in mind with digestive or lung conditions (bloating can make breathing harder).
Nutrition (per 100 g)
| Energy | 60 kcal |
|---|---|
| Protein | 3.8 g |
| Fat | 0.7 g |
| Carbohydrate | 10.2 g |
| Fibre | 3.7 g |
| Sodium | 244 mg |
Figures are for a comparable item in the USDA FoodData Central database: “Soup, lentil”. Home recipes vary — treat this as a rough guide, not an exact calculation. USDA FoodData Central, FDC ID 2707462
More from this cuisine
Related topics
Food safetyNeutropenic diet (low-microbial diet)PasteurisedCore cooking temperatureLeftoversCross-contamination
Sources
- Centers for Disease Control and Prevention (CDC). Safer Food Choices for People With Weakened Immune Systems
- FoodSafety.gov (U.S. HHS). Cook to a Safe Minimum Internal Temperature
- USDA Food Safety and Inspection Service. Leftovers and Food Safety
- U.S. Food and Drug Administration (FDA). Food Safety for Older Adults and People with Cancer, Diabetes, HIV/AIDS, Organ Transplants, and Autoimmune Diseases
- Food Standards Agency (UK). Chilling
- World Health Organization (WHO). Five keys to safer food manual
- Memorial Sloan Kettering Cancer Center. Food Safety During Cancer Treatment
- National Cancer Institute (NCI). Eating Hints: Before, during, and after Cancer Treatment
- BMJ Supportive & Palliative Care, 2019. Neutropenic diets to prevent cancer infections: updated systematic review and meta-analysis
- U.S. Department of Agriculture (USDA). FoodData Central — Food and Nutrient Database for Dietary Studies (FNDDS)