that would be vitamins such as E,D,C,A and carbs. others it really depends on the cereal itself
the main nutrient of apple is Carbohydrate.
The main nutrient in Oranges is Vitamin C.
It depends on the cereal bar. It should tell you on the bar's wrapper or on the box if you bought them in bulk. You can find it in the nutrient facts on the box or wrapper.
One of the main reasons is because pulse crops have the ability to "fix" atmospheric nitrogen in the soil, providing a primary nutrient for the following cereal crop. Sufficient soil nitrogen is probably the most potentially yield-limiting nutrient that the plant needs.
Cereal contains a variety of nutrients. Some of these include B vitamins, iron, fiber, protein, vitamin E, fat and carbohydrates.
cereal, soybeans
Fibre is found in basically all cerials, more in some and less in others. Carbs of which sugars are also found in cerial. Those are the two main things but other things do depend on the type of cerial.
Vitamin D?
Protein.
water
Carotene
my bum