Gut diversity begins with food diversity.
Eating different plant foods gives the microbiome a wider range of fibres and plant compounds. Dal is not the same as spinach. Guava is not the same as oats. Rajma is not the same as pumpkin. Each food brings a slightly different structure for gut bacteria and digestion.
A practical Indian target is to count plant variety across the week. Include different dals, beans, vegetables, fruits, whole grains, nuts, seeds and herbs. A plate of rice, dal, cabbage and cucumber is different from a plate of roti, chole, carrot and curd. Variety does not have to be expensive. Seasonal vegetables, roasted chana, peanuts and local fruits can do a lot.
Packaged foods often reduce diversity because they repeat refined flour, sugar, oil and salt. Even if they are convenient, they do not feed the gut in the same way.
If your current diet is low in fibre, increase gradually. Too much rajma, sprouts and raw salad overnight can cause discomfort.
The microbiome likes a changing menu of plant inputs. A diverse Indian plate is one of the simplest ways to support it daily.
A microbiome cannot diversify on a menu that repeats itself. Rotate the dal, the vegetable and the fruit before reaching for anything else.