Being an Indian, we have multiple options of food and that too at different times in single day and if we talk about starting the day with healthy food/ diet options, South Indian Food is one of the most preferred, especially for breakfast meal. South Indian food is based on steam-cooking and fermentation process, which make it nutrient-rich, easy to digest and a healthy meal overall. Most common South Indian breakfast dishes may include idli, dosa, sambar. Some of the important health benefits of South Indian breakfast (in fact, this cuisine at anytime of the day) are as follows:
- It is gut-friendly and helps in maintaining good digestive health as the process of fermentation (in making idli, dosa) produces probiotics which is quite beneficial for the human digestive system.
- It also helps in weight management as the high fiber and protein content (sambar- lentils) helps in avoidance of over-eating.
- Ragi Dosa, having low Glycemic Index is considered to be good for diabetics as it helps in maintaining sugar levels.
- It is a multi-nutrient cuisine, all at once, such as lentils rich in protein, rice/millets rich in carbohydrates, spices (turmeric, cumin) have antioxidants and coconut having healthy fats.
- Steam cooked (idli) are easy to digest and thus suitable for all ages (infants and elderly).
However, some concerns regarding these food items are also there which need to be taken care of, such as over-fermentation may spoil the food, high oil content in deep fried food items, adulteration in some products, etc. may lead to health issues like acidity, bloating or other long-term health risks. So, a balanced intake of South Indian food items, prepared with scientifically proven healthy parameters, can give a lot of benefit to the body along with taste to the tongue 
Share your opinion on South Indian cuisine and especially while considering for the breakfast meal and also, any other cuisine or diet which you consider as a healthy and whole-some option to have in morning.
MBH/PS