Make Yourself Heart Attack Proof: Eat to Your Heart's Content
http://health.msn.com/health-topics/heart-and-cardiovascular/make-yourself-heart-attack-proof-eat-to-your-hearts-content
Studies have shown that up to 70% of heart disease can be averted
with the right regimen, according to Walter Willett, MD, chair of nutrition at
Harvard School of Public Health. But is diet alone as powerful as drugs? "Oh,
no, it's much more powerful," says Dr. Willett. "Statins, the most effective
single medications for reducing heart disease, only cut risk by 25 to
30%."
In fact, you would need a cabinet full of prescription drugs to
bestow all the benefits of a serious heart-healthy meal plan. There's nothing a
drug can do for your heart health that foods can't do, too.
In that spirit, here are nine top foods for the heart. But this
list is only a beginning. A truly healthy diet features a broad range of fruits,
vegetables, nuts, and legumes--not a select few. Hippocrates understood the
concept more than 2,000 years ago: "Let your food be your medicine, and your
medicine be your food."
Oranges
Rx Effect:
Reduce blood pressure, cholesterol and heart failure
THE EVIDENCE: Oranges contain a
pharmacy's worth of salves for the heart. The soluble fiber pectin acts like a
giant sponge, sopping up cholesterol in food and blocking its absorption--just
like a class of drugs known as bile acid sequestrants. And the potassium in
oranges helps counterbalance salt, keeping blood pressure under control.
But new research shows something even
more startling: Citrus pectin helps neutralize a protein called galectin-3 that
causes scarring of heart tissue, leading to congestive heart failure--a
condition that is often difficult to treat with drugs. "Twenty percent of
Americans over 50 have high galectin-3," says Pieter Muntendam, MD, CEO of BG
Medicine in Waltham, MA. "A 2009 study showed that a diet high in fruits and
vegetables decreased the risk of heart failure by 37%."
TRY: Pectin is contained in the pulp
and pith. You'll get more of it in juice with pulp. Or better yet, eat your
oranges.
Kale
Rx Effect:
Prevents atherosclerosis
THE EVIDENCE: Your mom was right: You
need to consume your dark leafy greens. "Kale has everything you would want in a
superfood," says Joel Fuhrman, MD, the author of the bestseller Eat
to Live, who uses diet and exercise to help patients reverse their
cardiovascular disease. For starters, kale boasts a bumper crop of heart-healthy
antioxidants, omega-3 fatty acids, fiber, folate, potassium, and vitamin E. It's
also rich in lutein, which correlated in the Los Angeles Atherosclerosis Study
with protection against early atherosclerosis. Kale even contains an unusual
compound, glucoraphanin, that activates a special protective protein called
Nrf2. "It creates a sort of Teflon coating in your arteries to keep plaque from
adhering," says Dr. Fuhrman.
TRY: For a snack, try Brad's Raw Leafy
Kale--actual kale that is dehydrated, then coated with ground cashews, sunflower
seeds, lemon juice, and garlic.
Garlic
Rx Effect:
Reduces blood pressure and plaque
THE EVIDENCE: Research suggests that,
much like the ACE inhibitor drugs that fight high blood pressure, garlic
ratchets down an enzyme called angiotensin, which constricts blood vessels.
Though the effect is modest compared with medications, garlic seems to have a
significant impact on the buildup of plaque. In three randomized trials, Matthew
Budoff, MD, professor of medicine at UCLA, found that plaque progression slowed
by more than 50% in people taking garlic extract, compared with the non–vampire
slayers--"and the nongarlic group was on standard drugs," he says.
TRY: The trials used 250 mg tablets of
Kyolic aged garlic extract to standardize the dose. "But it's always better to
eat the real food," says Gayl Canfield, PhD, RD, director of nutrition at
Pritikin Longevity Center in Miami.
Red wine
Rx Effect:
Boosts HDL, reduces unwanted clotting
THE EVIDENCE: Any alcohol nudges up
HDL, the "good" cholesterol that helps prevent plaque. But red wine may offer
additional benefits, says John Folts, PhD, professor emeritus of cardiovascular
medicine and nutrition at the University of Wisconsin–Madison. "The key is not
resveratrol--you would need 16 bottles a day," he says. Instead, compounds
called polyphenols help keep blood vessels flexible and reduce the risk of
unwanted clotting. "They're nearly as effective as aspirin," he claims. But
note: More than one glass of vino a day ups the risk of breast cancer for women,
and chronic heavy drinking damages the heart, so this is a case where more is
not better.
TRY: Dark beer such as Guinness stout
delivers many of the same beneficial polyphenols.
Dark chocolate
Rx Effect:
Reduces blood pressure
THE EVIDENCE: The Kuna Indians off the
coast of Panama have enviably low blood pressure--and unlike the rest of us,
they don't develop hypertension as they age. When Harvard cardiologist Norman
Hollenberg, MD, set out to unravel their secret, he assumed they carried some
rare genetic trait. Instead he found they drink enormous quantities of minimally
processed cocoa. It's rich in compounds called flavanols, which improve blood
vessel flexibility. We can all get them from chocolate--a few squares a day.
Dark chocolate is likely to have more, because it starts with a higher cocoa
content--but that's no guarantee, since different processing methods can destroy
them.
TRY: Dove Dark has been shown to have
high levels of flavanols.
Sardines
Rx Effect:
Lower triglycerides, raise HDL
THE EVIDENCE: The omega-3 fatty acids
in cold-water fish are crucial for heart health, and sardines have among the
highest levels. These "good fats" lower harmful triglycerides, raise protective
HDL, reduce potentially fatal heart arrhythmias, and tamp down inflammation.
It's inflammation that ultimately destabilizes plaque, causing it to rupture and
produce a heart-attack-inducing clot. Though you can get omega-3s from plant
sources such as flaxseed, the "long chain" omega-3s in fish are far more
powerful. A large Danish study last year in the American Journal of
Clinical Nutrition found a 38% reduction in ischemic heart disease among
women who consumed the most.
TRY: Wild Planet sells wild sardines
in extra virgin olive oil with lemon.
Lentils
Rx Effect:
Reduce blood pressure
THE EVIDENCE: One international study
followed 12,763 people in the United States, Japan, and six European countries
for 25 years. When the results were tallied, legumes--such as lentils--were
associated with an 82% reduction in the risk of death from heart disease. The
reasons include not only lean vegetable protein and fiber but also folate,
magnesium, and potassium. George Mateljan, the author of The
World's Healthiest Foods, calls magnesium "nature's own calcium channel
blocker"--a type of drug that fights hypertension. And by counterbalancing salt,
potassium is crucial for keeping blood pressure under control.
TRY: TruRoots's new Sprouted Lentil
Trio cooks in just 5 to 7 minutes.
Almonds
Rx Effect:
Reduce LDL and fatal arrhythmias
THE EVIDENCE: "You don't have to be
miserable to bring your cholesterol down," says David Jenkins, MD, PhD,
professor of medicine and nutritional sciences at the University of Toronto. The
plant sterols in almonds reduce the absorption of cholesterol from the diet,
while the unsaturated oils encourage the liver to make less LDL and more "good"
HDL. When Dr. Jenkins gave patients a vegetarian diet including almonds (along
with other cholesterol-lowering foods, such as lentils, eggplant, and soy) for a
month, he found LDL reductions of 28.6%--comparable to those on 20 mg of
lovastatin (Mevacor). Just 22 almonds a day will do. Another study found major
declines in fatal arrhythmias with 2 servings of nuts a week.
TRY: Don't limit yourself to almonds.
Walnuts, pistachios, and peanuts are also great.
Pomegranates
Rx Effect:
Reduce atherosclerosis
THE EVIDENCE: Bringing down LDL is
important, but so is preventing the oxidation of that cholesterol. When LDL is
oxidized, it tends to get stuck in arterial walls, initiating the formation of
plaque. But Michael Aviram, DSc, professor of biochemistry at the
Technion-Israel Institute of Technology in Haifa, found that pomegranate juice,
with its unique antioxidants, not only blocked the progression of plaque, but
actually reversed some of the buildup when patients drank 8 ounces a day for a
year. How does it do this? In later studies, Dr. Aviram learned that
pomegranates activate an enzyme that breaks down oxidized cholesterol.
TRY: For those who love pomegranates
but not the messy job of cracking them open, Pom Wonderful now does the work for
you. Look for the fruit-covered seeds (or "arils") in clear plastic cups under
the brand name Pom Poms.
No Half-Hearted Measures
Unfortunately, you won't disease-proof
your heart by simply adding chocolate, wine, and nuts to a diet full of
doughnuts and bacon. Groundbreaking new studies explain why.
For years, government panels told us
that the main villain in heart disease was the saturated fat in meat and dairy.
We did the logical thing and cut down on total fat while upping refined
carbs.
Bad move. Research now shows that the
sugar and refined flour in our bagels, pizzas, cookies, and sodas are even more
problematic. Stripped of fiber (and other nutrients), these unhealthy carbs
zip-line through the digestive tract and into the bloodstream, where they
deliver a triple dose of heart damage--raising harmful triglycerides, lowering
protective HDL, and raising blood pressure.
But saturated fat isn't off the hook.
Some studies have appeared to exonerate it--but only because people in these
studies replaced the bad fat in their diets with harmful carbs. "When you eat
good fats instead of bad ones, cardiac risk goes down," says Harvard's Walter
Willett, MD. So treat cheese as dessert, not the main course, and favor lean
meat such as grass-fed bison.
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