Until about 1970, when the so-called Green Revolution happened, India as a country collectively didn’t have enough food (remember PL-480 and “ship to mouth existence”?). Until liberalisation in the 1990s, even people who could possibly afford it couldn’t get the food they wanted (remember lining up at ration shops?).
In other words, Indians (as a country – there are still lots of people who don’t get to decide on what to eat since they’re way too poor) have had a proper choice in terms of what to eat for just about one generation now. More than half the Indians who are currently alive spent at least some part of their lives at a time when it just wasn’t possible at all to eat what one wanted.
What this implies is that what we consider to be “traditional food” is largely “poor food” – we and our ancestors ate that not because it was what was the most nutritious, but because that is what was available, and what we could afford.
And so you have most of our traditional food being extremely heavy in carbs and light on almost everything else. I have friends who comment that most Indian vegetarian food hardly has vegetables – consider the sambar, for instance, which just has a few pieces of vegetables floating around. It is a correct comment, but that is because most of what we know as traditional Indian food evolved through times of shortages and poverty.
There are times when I attempt to give people nutrition advice, and while people listen to me politely, they end up saying something to the effect that if they start eating “traditional food”, all will be fine with their health again.
We’ve evolved to fundamentally trust the familiar, and distrust the new. And so it is with our food choices. Without really understanding why we and our ancestors ate the food that we ate, we consider “traditional food” to be good.
Now that I can afford it, I try to make sure I have balanced meals, and a lot of “traditional indian foods” that I grew up eating hardly get consumed in my house now. Consider the uppit – which is mostly carbs (semolina) with a small handful of vegetables and some fats thrown in – incredibly unbalanced stuff. Or beaten rice (avlakki/poha) – which is so light that you start feeling hungry within a couple of hours of eating. And so on – once you start looking at at the nutritional value of what you are eating, you will find yourself thoroughly dissatisfied with a lot of “traditional stuff”.
So my advice to you is this – if you can afford it, give what you are eating a thought, and make sure you get the right kind of nutrition without giving too much concern to your “priors”. And if you’re on a tight budget, optimise that to make sure it goes as far as possible in providing you a balanced diet.