My father had ALD running in his family. His two uncles, his mother (at old age) and two of his brothers were all affected.
My father was unaffected. A VLCFA test he took showed normal values. He died in his early 50's without ever showing signs of the disease.
I (his daughter) am about to have my first child soon I would like to find out whether my father's VLCFA test results mean that he was not carrying the ALD gene (then, in my turn, I have nothing to worry about), or, is it possible that he was still carrying the gene even though he himself was unaffected? Can men be ALD carriers?