my FIRST Avocado I ever tried to cut & eat. its a vary slippery fruit with a stiff skin

my FIRST Avocado I ever tried to cut & eat. its a vary slippery fruit with a stiff skin.
Dr GunDry says its a really good fruit to eat for a really good FAT source & he said if you eat 1 avocado a day you will lose weight.
To me its tasteless so I dip it in guacamole. its a really good source of the B vitamins too. if you have stomach issues avocado's have the GOOD fat that your stomach needs.