BETA-BLOCKERS AND CHOLESTEROL
Question: Do the blood-pressure drugs known as beta-blockers affect cholesterol levels? I take Lopressor to control hypertensiont and Ym concerned because I have a very high cholesterol level.
Answer: While beta-blockers, including metoprolol (Lopressor), have been reported to raise triglycerides and lower levels of HDL (high-density lipoprotein, the “good” cholesterol), it is unclear how great the effects are and how they might affect the prognosis for coronary heart disease. These changes do not appear to significantly affect total cholesterol or LDL (low-density lipoprotein, “bad” cholesterol) levels.
CHOLESTEROL AND COFFEE . . .
Question: I’ve read that unfiltered brewed coffee can raise blood-cholesterol levels. But what about instant coffee?
Answer: Apparently not. That’s because the manufacturing process removes nearly all of the two compounds—cafestol and kahweol—responsible for the increased cholesterol levels.
. . . AND DECAF
Question: Does decaffeinated coffee contain the compounds that can raise cholesterol levels?
Answer: That depends solely on how it’s prepared. The decaf-feination process itself has no effect on the offending substances—cafestol and kahweol. But like regular coffee, decaf that’s instant or drip-filtered will have virtually none of those chemicals.
CHOLESTEROL-LOWERING DRUGS AND CATARACTS
Question: My doctor wants to put me on medication to lower my cholesterol. But I read somewhere that the current cholesterol- lowering drugs can cause cataracts. Is that true?
Answer: Only one cholesterol-lowering drug, lovastatin (Mévacor), was once thought to be associated with any risk of cataracts. And while that risk was believed to be quite low, the FDA advised users to get an annual exam for cataracts.
Yet several studies have now disproved any such association. The annual examination for cataracts is no longer recommended for lovastatin users.
CONFUSION OVER HDL AND LDL
Question: Yow seem to discuss HDL and LDL as if they were two types of cholesterol. But then you say that both HDL and LDL transport cholesterol. I’m confused.
Answer: The terminology is confusing. HDL (high-density lipo-protein) and LDL (low-density lipoprotein) are not types of cholesterol. Rather, they’re fat-protein compounds that trans-port cholesterol through the blood. (HDL tends to carry cho-lesterol away from the arteries, thus earning the title of “good” cholesterol, LDL, or “bad” cholesterol, tends to deposit cholesterol in the walls of arteries.)
Sometimes, though, HDL and LDL are used as shorthand terms to refer to the lipoproteins together with their choles-terol cargo.
Health handbook introducing you to read the article: Strength Training: Safe For Kids
Copyright ownership rights: The Best of Health – Consumer Reports