No. Low body fat results in amenorrhea ( failure to menstruate )
It can be indicative of too low body fat
Loss of bone calcium and early start to osteoporosis.
"Amenorrhea and anorexia
Although amenorrhea exists among women with no eating disorders, loss of menses is certainly a red flag symptomatic of restrictive, anorectic type eating behaviors. The American Psychiatric Association's definition of anorexia lists "absence of at least three consecutive menstrual cycles" among the criteria. Other criteria include: weight loss 15% below that expected, intense fear of gaining weight or becoming fat, and distorted body image (i.e., claiming to feel fat even when emaciated), all of which are concerns common to female athletes." [1]