求一道英语阅读题答案According to one definition, the word "supplement"

求一道英语阅读题答案According to one definition, the word "supplement" means "something added to
complete a thing, to extend or strengthen the whole."
Supplements can be
very beneficial but you must be careful because, like any drug, all supplements
pose potential risks. Before you start taking any, check with your doctor
first.
A supplement may be natural but that doesn't mean taking it is
completely without risk. Many, if not all, supplements have the potential to
interact with prescription or over-the-counter drugs, cause harmful side effects
if taken inappropriately, or even make existing medical conditions worse. That's
why it's critical that you tell your health care providers about any supplements
you take. In a University of Michigan study one-third of the patients taking
supplements were using ones that could interact with their heart medications. Be
especially cautious if you're taking blood-thinning medication like aspirin,
Coumadin (warfarin), or Plavix (clopidogrel); many supplements, such as ginkgo
biloba (银杏),ginseng (人参), garlic, vitamin E, fish oil, and coenzyme (辅酶) Q 10,
also have blood-thinning properties, and the combined effect could lead to
dangerous bleeding.
Also, the label may say "natural" but that doesn't
mean the supplements are any safer than medicinal drugs. They still include
chemicals that have an effect on your body; that's why they work. So don't
exceed the recommended dose, and don't take any supplement longer than advised.
If you are pregnant or nursing, be doubly sure to check with your doctor before
taking any supplements.
In the next few years you're bound to hear more
and more about natural alternatives for lowering cholesterol and protecting the
heart. But before you jump on any bandwagons (花车), take heed: No supplement is a
substitute for the lifestyle changes, particularly good eating habits. The fact
is that scientists will probably never be able to duplicate (复制) the complex
effects and myriad health benefits of foods like fruits, vegetables, and whole
grains with a pill. And of course, lowering your cholesterol with supplements
while eating steak and ice cream with abandon, or taking hawthorn (山楂) or CoQ10
to lower your blood pressure while doing nothing to relieve the stress caused by
your nerve-racking job, won't do your heart or your arteries (动脉) much good in
the end.
32. Which of the following can best summarize the passage?
A) Supplements have benefits and risks.
B) Natural supplements are not always safe.
C) You should know what you are getting.
D) Natural supplements do not cure all.