If you are considering an Ayurveda trip to Kerala for the first time, the choice can feel overwhelming. There are 550 government-accredited centres in the state, and the marketing copy on most of their websites is virtually identical. We have spent the better part of ten years visiting as many as we could, and the shortlist below is the one we send to friends who write to ask.

Six places, in no particular order. Each is genuinely physician-led, each takes the tradition seriously, and each is somewhere we would happily spend a fortnight ourselves.

1. Kottakkal Arya Vaidya Sala — the gold standard

Founded in 1902 in the small town of Kottakkal in Malappuram district, this is the most respected institution in classical Ayurveda anywhere in the world. It is a working Ayurvedic hospital first, a treatment centre second, and a tourist destination almost not at all. The atmosphere is that of a serious medical campus: physicians in white, treatment rooms in long quiet corridors, a pharmacy that prepares its own medicines on-site using methods unchanged for a century.

Stay at the Vaidyaratnam guesthouse on the campus or at one of the small hotels in town. Book at least 14 days. The Kottakkal experience is the closest thing in Kerala to Ayurveda as a serious medical proposition.

2. Somatheeram, Chowara

Somatheeram, on the cliff above Chowara beach south of Kovalam, was the first dedicated Ayurveda resort in India when it opened in 1985, and it remains among the very best. Cottages scattered through a coconut grove, a small private beach, a resident vaidya who has been there for decades, and a kitchen that cooks individually for every guest's prescribed diet. Programmes from one to four weeks. Roughly $180 – 280 per night, all-inclusive.

3. Kalari Kovilakom, Palakkad

A 19th-century royal palace, converted with extraordinary care into a 20-room residential clinic. Kalari Kovilakom is the most refined of Kerala's Ayurveda destinations — guests wear the traditional cotton clothes provided on arrival, leave their phones at reception, and follow a strict daily programme designed by the resident physician. It is not for everyone (no alcohol, no entertainment, no shoes indoors). For the right traveller it is transformative.

4. Niraamaya Retreats, Kovalam

Smaller and more intimate than Somatheeram, Niraamaya sits on a low cliff above one of the quietest beaches in Kovalam. Ten cottages, an exceptional resident vaidya, a kitchen that takes the food side of Ayurveda as seriously as the treatments. Best for first-timers who want a gentler entry into the tradition while still doing serious work.

5. Vaidyagrama, near Coimbatore

Just across the state border in Tamil Nadu, but worth including: Vaidyagrama is an entirely traditional Ayurveda gurukulam (teaching village) built in mud brick by Dr Ramkumar, one of the most respected vaidyas in the world. There is no luxury here. There are also no compromises. Programmes from two to six weeks; the longer-stay guests are visiting from Switzerland, Japan and Brazil.

6. A small physician-led centre near Thrissur

Our sixth recommendation is a family-run Ayurveda centre near Thrissur that does not advertise to foreigners and asks not to be named in print. If you write to us through the newsletter, we will introduce you. It is the place we would send our own mother. The bookings are direct, the programmes are uncompromising, and the vaidya is extraordinary.

Six places, in no particular order. Each is physician-led, each takes the tradition seriously, each is somewhere we would happily spend a fortnight ourselves.— On choosing a centre