Appetite suppressants, the big hope, the big letdown
If only we
could just not want to eat. Wouldn’t that make staying healthy so much easier?
We’d eat what we needed because it was the right thing to do for our health –
like brushing our teeth – not because it was such a rewarding source of
pleasure.
No such luck.
We love food. We’re hard-wired to want it. That’s part of what assures survival
of the species, and we further cultivate our appetites for it by associating
food with every other kind of satisfying joy from birth onward – maternal
comfort, familial stability, social interaction, celebration, etc.
But enjoying
food for more than physical sustenance is part of the reason we have an obesity
crisis.
So appetite
suppressants are the most widely used of the medicines and supplements used for
weight-loss therapy. The logic is simple—if you have no appetite, you’ll eat
less and you’ll lose weight.
Having no
appetite could be a powerful defense against the world of “eat-more, eat-now”
messages that constantly bombard Americans, stimulating our appetites by any
means available.
A person who is suddenly finding it easier to pass on
the junk and the massive servings can exercise a lot more control over the
quantity and quality of their intake. And that’s just the boost some people need
to make a routine of healthy dietary changes, and that boost can sometimes come
from a medication.
But it’s no
get-out-of-weight-free card. Chemically,
appetite suppressants act on the
central nervous system (CNS) to decrease appetite or cause the feeling of
fullness that doctors call satiety. But
appetite suppressants appetite suppressants are also the most
controversial because of potentially dangerous side effects.
Some appetite
suppressants are addictive, and their effect tends to wear off if used over an
extended time, such that people need to take larger doses to produce the same
result, which in turn increases the risk of addiction, which in turn increases
other risks.