A reduced desire to eat is common during illness, stress or grief, and usually returns within days. When it lasts longer than a couple of weeks, or comes with weight loss, it needs a medical check because it can be the first sign of a treatable condition. Ayurveda calls loss of taste and appetite Aruchi and has a long tradition of appetising, digestion-kindling foods and spices.
Appetite is controlled by the brain in response to hormones, the gut, mood and illness. Almost any illness can reduce it for a while. Short-term causes include viral fevers, stomach upsets, stress, pain, constipation and some medicines. Longer-lasting loss of appetite is more likely to have a specific cause, and in older people it is a common and often overlooked cause of weight loss, weakness and falls.
| Cause | Clues |
|---|---|
| Infections — tuberculosis, hepatitis, HIV, long-lasting fevers | Fever, night sweats, cough, yellow eyes, weight loss |
| Depression, anxiety, grief | Low mood, poor sleep, loss of interest |
| Stomach and gut problems — gastritis, ulcers, constipation, coeliac disease | Nausea, early fullness, pain, change in bowel habit |
| Medicines | Started after a new medicine — for example some antibiotics, metformin, painkillers, chemotherapy |
| Hormonal and organ conditions — thyroid, diabetes, kidney or liver disease, heart failure | Tiredness, thirst, swelling, breathlessness |
| Pregnancy | Missed period, nausea |
| Cancer | Unexplained weight loss, a lump, bleeding, difficulty swallowing — needs prompt checking |
| Ageing, dental problems, loneliness | Older people living alone, poor teeth or dentures, reduced taste and smell |
A doctor will ask about weight, mood, medicines and other symptoms, examine you and usually check a blood count, blood sugar, thyroid, kidney and liver function, and inflammatory markers, with other tests guided by the clues. Treatment focuses on the cause. A dietitian can help maintain nutrition in the meantime; in some situations nutritional supplement drinks are prescribed.
Aruchi — distaste for food — is described with Vata, Pitta and Kapha types (for example, a bitter or astringent taste in the mouth with Vata, a sour or burning taste with Pitta, and a sweet, sticky taste with heaviness in Kapha), and a type caused by the mind — grief, fear, anger and disgust. Charaka Samhita recommends improving appetite with pleasant, well-prepared, flavourful food eaten in good company, as well as with appetising and digestive herbs (deepana, pachana).
A classical pre-meal appetiser: a few thin slices of fresh ginger with a pinch of rock salt and a squeeze of lemon, 10–15 minutes before eating.
Cumin and carom seeds in cooking or as a light tea support digestion.
Used by practitioners for sluggish digestion. They are pungent — avoid with acidity or ulcers.
Salt-containing remedies matter if you have high blood pressure or kidney disease. Appetisers don't treat the underlying causes above — see a doctor if appetite loss persists. Use licensed products from a qualified practitioner.
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Reviewed against NHS: Unintentional weight loss, NHS: Anorexia nervosa, NCCIH: Ayurvedic Medicine, and Ministry of Ayush pharmacovigilance. These links support education and do not replace individual medical advice.