The aforemerntioend advice is wise but at the end of the day, the distal extremeties; specifically the forearms and calves size/shape are largely genetically predetermined.
Sadly, I could be an easy 10-15 pounds bigger (I was at one time) but decided years ago to remain lean/balanced instead b/c of my horrible calf and forearm development. I started looking silly with my 16.5 calves and tiny forearms at that weight (225-230) and my gut was a tad bigger too adding to the detrimental imbalance aesthetically speaking.
I train hard and Im as dedicated as they come so respetfully, please spare me the preaching on training ignorance. It is what it is.
Before I get flamed for this, look at most black guys' calves. IMO, most black bb'ers look vastly superior upper body-wise yet can't hang in the calves dept. Phil Heath is the rare exception. Now, this is not to say you cannot develop your forearms to their respective fullest potential but be realistic about your maxinmum gains that's all. Heck, for what it's worth, all bodyparts have their genetic limits; but calves are simply the most common noticeable bodypart validating this.
Ensuring that you have all the necessary support in place (diet, correct training, appropriate rest), is the best you can do IF you are one who is genetically deprived in these regions.