Grapefruit and grapefruit juice are metabolized by the same enzymes in the liver that break down many drug compounds. Eating grapefruit leaves less enzymes available to break down the medication, and the amount of drug remaining in the blood...
Grapefruit may prove helpful in lowering your blood pressure, providing a natural remedy to hypertension and protecting you against heart disease. But if you take blood pressure medications, combining them with grapefruit could seriously endanger...
A small grapefruit study, published in 2006 in the "Journal of Agriculture," suggests that people with high blood pressure can improve their heart health if they add grapefruit to their diet. Do not eat grapefruit or drink grapefruit juice if you...
Grapefruit and grapefruit juice is nutritious and contains many important nutrients, including vitamin C, soluble fiber and potassium. In some cases, not getting enough potassium can cause your blood pressure to rise, so eating grapefruit may help...
Fruits and vegetables are loaded with beneficial vitamins, minerals, flavonoids and phytochemicals. Citrus, including grapefruit, provides vitamin C and fiber, important for health. Even the DASH diet, a diet found to improve blood pressure,...
Grapefruit is a nutritious fruit, with half of a grapefruit providing you with 1 g of protein, 1 g of fiber, 70 percent of the daily value for vitamin C and small amounts of vitamin A, calcium, riboflavin, vitamin B-6, magnesium, thiamine, niacin...
Some medicines aimed at reducing blood pressure, including calcium channel blockers, can become dangerous if consumed with grapefruit. Grapefruit can elevate the amount of calcium channel blockers in your bloodstream, increasing the medication's...
More than 30 percent of U.S. adults have high blood pressure, according to the Centers for Disease Control and Prevention. High blood pressure increases your risk of both heart attack and stroke. Treatment usually requires a change in lifestyle...
While you may enjoy a daily glass of grapefruit juice with breakfast or a snack, it can have adverse effects if you take certain medications. This is true for high blood pressure medications you take to reduce fluid retention and salts in your...
Grapefruit seed extract -- or grapefruit in any form -- can become dangerous, even deadly, if combined with some blood pressure and other medications. Grapefruit seed extract, by itself, may lower your cholesterol. This could, in turn, lower your...
It's hard to beat the nutritional value of grapefruit. It provides an excellent source of vitamins A and C as well as good portions of potassium, magnesium and niacin. A half grapefruit provides 100 percent of the recommended daily allowance for...
It may prove dangerous to consume grapefruit, including grapefruit seed extract, with some blood pressure medications. Grapefruit plus blood pressure medications may lower your blood pressure to heart-stopping levels. Grapefruit seed extract...
Grapefruit, a citrus fruit that many people enjoy either whole or as part of juice, has gotten some negative press about its effects on medication. Many people are aware of potentially negative interactions between some drugs and grapefruit or its...
Coreg is a beta-blocker prescribed for high blood pressure. Coreg works to lower blood pressure by relaxing your blood vessels and slowing the rate of your heart to make blood flow more easily. Grapefruit interferes with calcium channel blocker...
Red grapefruit consumption may help improve your cholesterol levels. Since cholesterol and blood pressure are linked -- both affect the condition of your arteries and blood flow to your heart and other vital organs -- consuming ruby red grapefruit...
If you take calcium channel blockers to treat high blood pressure, consult your doctor or pharmacist before consuming any grapefruit. Grapefruit can elevate the levels of calcium channel blocker medication in your bloodstream, which can lead to...
Some types of grapefruit juice can elevate the level of blood pressure medication in your body to an unhealthy and dangerous extreme. Channel blockers, in particular, may cause serious interactions when mixed with grapefruit. Some other...
If you have high blood pressure and are taking calcium channel blocker medication to lower it, you should not consume grapefruit seed extract or any products containing grapefruit. Grapefruit can adversely interact with blood pressure medications...
Grapefruit pectin is the white substance in the rind of a grapefruit. Pectin is a soluble fiber that has a specific action in your intestinal tract. According to a 2004 issue of "Life Extension," when manufacturers chop grapefruit pectin into very...
Grapefruit, a citrus fruit, has a reputation for being nutritious that has been sullied by the discovery the fruit interacts with a variety of medications. A review in the Aug, 15, 2006, "American Family Physician" reports that many drugs used...
Grapefruit juice can be harmful if you're taking blood pressure-lowering medicine. If you combine grapefruit juice with some types of blood pressure medication, your blood pressure could drop to dangerously low levels. Grapefruit does not affect...
A study led by Shela Gorinstein of the Hebrew University of Jerusalem suggests that consuming grapefruit, particularly red grapefruit, can lower your triglyceride levels. If you reduce your triglycerides, an artery-clogging fat, blood flows more...
You have to be careful about what foods you eat when you are taking prescription medications. Not only can some foods make your medication less effective, some, such as grapefruit, can increase the side effects of certain medications. Grapefruit...
Tart, refreshing grapefruit juice is a healthful beverage filled with vitamin C. You should exercise caution in adding grapefruit juice to your diet if you are taking certain medications, however. This common breakfast food can increase or...
Although grapefruit is usually good for you, it can be bad for you if you take a calcium-channel blocker for high blood pressure. Grapefruit juice can interact with some blood pressure medications, causing adverse effects that can even be...
How you take medication affects how your body absorbs the active ingredients and influences how well the medication works. While some medications should be taken with food, you should heed your doctor's instructions about foods to avoid. If you...
Grapefruit and other related citrus, like Seville oranges, tangelos, minneolas and pummelos, contain furanocoumarins -- a group of compounds that interfere with the intestinal absorption of many drugs. Decreased absorption can persist for up to 72...
Consuming grapefruit juice may lower your triglycerides, a type of fat that can clog your arteries and increase your risk for heart attacks and strokes. But, if you combine grapefruit juice with some medications, including birth control pills, you...
Loaded with dietary fiber, vitamin C and potassium, grapefruit also contains several antioxidant compounds, such as lycopene, which are responsible for its color as well as its health effects. Research suggests that incorporating grapefruit into...
