The fasting laws do not lay out intrinsic moral norms, but can be made "binding" or can be "loosed" according to the "loosing and binding" authority which Christ gave to the Church (Matthew 18:18).
On the other hand, the law against engaging in deliberately disordered or sterilized sex, as in onanism/ sodomy/ contraception/ lesbianism, is Natural Law, and ties in with other Natural Laws like the ones forbidding deliberate misuse, mutilation, or impairment of healthy organs and systems.
The first category (what days do you fast, and so forth)involves changeable disciplines, analogous to driving on the right in the USA (unlike in the UK or Ireland, where you drive on the left.)
The second involves ethical behavior based on the meaning and purposes of created human nature, i.e. Natural Law, which is universal.
The Bible, through the chair of Saint Peter, who is the Bishop of Rome, calls the shots, not Bobby Jindal. If Jindal can’t abide by the teachings of the Catholic Church he needs to find himself another faith.