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In the Shingon cult I used to belong to, one useful idea, also found in mainstream dharma is, 'food as medicine'.
In other words the Middle Way between starving yourself ascetic and sensual over indulgence.
Onions and garlic are not forbidden to laity and in particular for colder realms, highly medicinal. Some food flavourings for example some spices and herbs are highly therepeutic.
Broccolli and the many brassica/cabbage varieties are a food-medicine, as are fruits and veg in general.
Virgin olive oil and tomatoes is one of my current favourite food additions.
Any tips for 'food as medicine' you would like to share?