The biggest hits - be they Coca-Cola or Doritos - owe their success to complex formulas that pique the taste buds enough to be alluring but don't have a distinct, overriding single flavor that tells the brain to stop eating.
The playing field is anything but level when you walk into the grocery store. So much government subsidy goes into processed foods. Even when you're well-meaning as a parent or a shopper for yourself, you can't help but be pulled toward the highly processed food.
Companies are experimenting with replacing sodium chloride with potassium chloride, because most of the health problems come from sodium. It works for some products, but if you diminish the amount of sodium, people want sugar and fat instead.
Every time the good giants try to cut back on salt, sugar, fat calories, inevitably Wall Street raises its hand and is looking at the sales figures and the revenue and saying, 'Thou shalt not result in any loss of profit.' There's huge continuing pressure on the food companies.
Pressed by the Obama administration and consumers, Kraft, Nestle, Pepsi, Campbell and General Mills, among others, have begun to trim the loads of salt, sugar and fat in many products.
The optimum amount of sugar in a product became known as the 'bliss point.' Food inventors and scientists spend a huge amount of time formulating the perfect amount of sugar that will send us over the moon and send products flying off the shelves.