Why after I eat a piece of fruit do I get hungry again within an hour? 

So why do people get hungry after eating some fruit?

The answer is simple.

Sugar.

I know people think that some fruits have no sugar but they do.

And sugar stimulates your insulin and that will make you hungrier in the process.

What is the solution?

First have a dietary program created by a qualified trainer specialised in nutrition.

Secondly the whole saying about eating a lot of fruit and vegetables will make you healthier is far from the truth.

Not every fruit and vegetables will make you healthier.

Stick to fruit low in fructose.

Yes fructose is not good.

Good options are cucumbers, avocados, lemons.

Above all get into a dietary plan created for you.