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Showing posts with label Reduce. Show all posts
Showing posts with label Reduce. Show all posts

Sunday, December 25, 2011

Does Grapefruit Really Help Reduce Body Weight?

AppId is over the quota
AppId is over the quota

Have you ever wondered whether there’s any real benefit to following a grapefruit diet? Does it really work? According to researchers at the Vanderbilt University School of Medicine in Nashville, Tennessee, grapefruit does help when it comes to shedding pounds — but only modestly.

The researchers based this health advice on a recent clinical trial they conducted. They noted at the outset of the study that reducing dietary energy density has proven to be an effective strategy to promote weight control. This effect appears most strong when a low-energy dense “preload” is eaten before meals. In other words, eating foods low in energy output before a meal, should, in theory, help to control weight. What is up for debate, according to the research team, is what the best food would be for the preload. So they set out to investigate the effects of grapefruit, grapefruit juice, and water preloads consumed before meals.

Eighty-five obese adults participated in the study. After completing two weeks of calorie-restricted meals, the participants were randomly assigned to 127 grams of grapefruit, grapefruit juice, or water preload for 12 weeks. The researchers were careful to match preloads according to weight, calories, water content, and energy density. They took weekly tests to measure blood pressure, weight, physical size, and 24-hour dietary intakes. The total amount of food eaten by the participants did not change over the course of the 12 weeks.

RECOMMENDED: The Cholesterol-lowering Miracle Fruit

The research team found that, after preloads were combined with caloric restriction, average dietary energy density and total energy intakes decreased by 20%-29% from baseline values. The study participants experienced a 7.1% weight loss overall. Significant decreases in percentage body fat, as well as waist circumferences, were recorded. However, differences were not statistically significant among groups. It seems that it didn’t matter what type of preload the participants used; only that they had something before their main meals.

Results were more striking when it came to cholesterol levels. The amount and direction of change in HDL (good) cholesterol levels in the grapefruit group was +6.2% and, in the grapefruit juice group, +8.2%. Compare this with a drop of 3.7% in the water preload group!

Whatever the final word is around grapefruit and weight management, it sounds like the fruit can offer a boost to your nutritional health in the form of improved HDL cholesterol levels.

Tags: blood pressure, Cholesterol



FOODS YOU SHOULD NEVER MIX WITH THESE
POPULAR SUPPLEMENTS...

There's something that you should know about the vitamins you're taking.

Something that is so controversial and upsetting, that it could very well change the entire landscape of the vitamin industry.

More importantly, it may also be affecting you personally if you're currently taking supplements.

What you could be mixing with your vitamins might actually be making you sick.

Dr. David Juan is regarded by many to be an authority on nutrition and supplements.

He's been a practicing medical doctor for over 30 years. And when it comes to the dangerous interactions of foods, drugs and vitamins, he's got the qualifications to back up what he's talking about.

And that's why he urgently needs to warn you about a new danger resulting from vitamin, food and drug interactions that have already harmed others...

Click Here to See The Foods You Should Never
Mix With These Popular Supplements

Tuesday, December 20, 2011

Can Soy Reduce Cholesterol Levels?

AppId is over the quota
AppId is over the quota

We come now, in this multi-part series on lowering cholesterol (see the previous article, This Rice Could Combat Cholesterol), to another great natural remedy. This one comes in food and supplement form. Everyone just has to realize that, when it comes to health, soy is not just for vegetarians. It could help you lower cholesterol, for starters.

The cholesterol-lowering effect of soy protein, in sharp contrast to animal protein, has been recognized in animal studies for over 90 years. However, in human studies, the results have not been consistent. The following summarizes the key findings from four recent studies:

In a meta-analysis of 38 studies in which the intake of energy, fat, saturated fat and cholesterol was comparable, subjects either ate a control diet or soy-containing diets. With an average intake of 47 g a day of soy protein, the results were: total cholesterol dropped 9.3%; LDL (bad) cholesterol dropped 13%; and triglycerides dropped 10.5%. The worse off your cholesterol levels were, the better soy protein acted in reducing them.

In a meta-analysis of eight studies, the effects of high (96 mg a day) or low (approximately six mg a day) isoflavone levels were studied. Isoflavones are the main acting substance in soy. All participants consumed similar amounts of dietary fat, cholesterol, and fiber. The results were impressive. LDL cholesterol in those taking 50 g a day of soy with high isoflavone content reduced 5.8 mg/dL more than those on low isoflavone content. LDL cholesterol dropped more in patients with high cholesterol than in those with normal levels. The following foods would yield approximately 90 mg a day of isoflavone: two glasses of soy milk; two packs of fermented soybeans; one block of tofu; or 249 grams of miso (fermented soybean paste).

In a meta-analysis of 26 studies conducted among adults given either soy protein or isoflavones, the researchers concluded that the cholesterol-lowering effects were small and clinically insignificant.

In a meta-analysis of 11 randomized controlled trials among adults, the effects of soy isoflavones on serum lipids were examined. The soy isoflavones lowered total cholesterol by 1.77% and dropped LDL cholesterol by 3.58%, while soy-protein-enriched isoflavones significantly reduced LDL cholesterol by 4.98% and boosted HDL (good) cholesterol by three percent. Those who had higher cholesterol levels at the start gained greater benefits.

Let’s compare soy with statin drugs, which are used to treat high cholesterol:

Statin Drugs: Lower LDL levels 18% to 55%; raise HDL levels five percent to 15%; lower triglycerides seven percent to 30%

Soy: Lower LDL levels 3.6% to 13%; raise HDL levels 30%; lower triglycerides 11%

It seems soy is worth it for those who need to better manage their cholesterol.

Sources:

Anderson, J.W., et al., “New Engl. J. Med., 1995; 333: 276-
82.
Zhuo, X.G., et al., “Soy Isoflavone Intake Lowers Serum
LDL Cholesterol: A Meta-Analysis of 8 Randomized
Controlled Trials in Humans,” J. Nutr., 2004; 134: 2,395-
2,400.
Dewell, A., et al., “A Critical Evaluation of the Role of Soy
Protein and Isoflavone Supplementation in the Control of
Plasma Cholesterol Concentrations,” J. Clin. Endo. Metab.,
2006; 91: 772-80.
Taku, K., et al., “Soy isoflavones lower serum total and
LDL cholesterol in humans: a meta-analysis of 11
randomized controlled trials,” Am. J. Clin. Nutr. 2007;
85: 1,148-56.

Tags: Cholesterol, healing foods, natural foods



FOODS YOU SHOULD NEVER MIX WITH THESE
POPULAR SUPPLEMENTS...

There's something that you should know about the vitamins you're taking.

Something that is so controversial and upsetting, that it could very well change the entire landscape of the vitamin industry.

More importantly, it may also be affecting you personally if you're currently taking supplements.

What you could be mixing with your vitamins might actually be making you sick.

Dr. David Juan is regarded by many to be an authority on nutrition and supplements.

He's been a practicing medical doctor for over 30 years. And when it comes to the dangerous interactions of foods, drugs and vitamins, he's got the qualifications to back up what he's talking about.

And that's why he urgently needs to warn you about a new danger resulting from vitamin, food and drug interactions that have already harmed others...

Click Here to See The Foods You Should Never
Mix With These Popular Supplements