Hi thanks for asking question.
Noted increased echogenicity of liver perenchyma.
The possibility could be non alcoholic 
fatty liver by obesity like causes.
It could be by 
hepatitis and sometime 
cirrhosis like cause.
Here you need is to do liver function tests.
According to which treatment can be guided.
Sometimes increased echogenicity could be  by 
glycogen storage disease or 
hemochromatosis like condition.If you have symptoms and no cause clear then biopsy can be taken.
If liver function test abnornal then  just follow few instructions like....
-Avoid trans fat
-fruits and green leafy veg
-Avoid refined food
-regular exercise
-Avoid smoking
-omega 3 fatty acid oil helpful like olive or sunflower like oil
-Avoid cheese, meat, butter, chips etc.
Repeat USG and liver function test after approx.month and after following above measures.
I hope your concern has solved.
Dr.parth