Tout dans la vie est une question d'équilibre d'où la nécessité de garder un esprit sain dans un corps sain.

Discipline-Volonté-Persévérance

Everything in life is a matter of balance therefore one needs to keep a healthy mind in a healthy body.

Discipline-Will-Perseverance.

E. do REGO
Showing posts with label fruits and vegetables. Show all posts
Showing posts with label fruits and vegetables. Show all posts

Saturday, August 9, 2014

Which Common Fruit Fights Cancer Better?


December 10, 2013 by Michael Greger M.D. in News with 12 Comments
Which Common Fruit Fights Cancer Better?
Recently, researchers compared the ability of eleven common fruits to suppress cancer cell growth in vitro. Which do you think was most effective—apples, bananas, cranberries, grapefruits, grapes, lemons, oranges, peaches, pears, pineapples, or strawberries?
There are many ways to compare the healthfulness of different foods. For example, if you were interested in antioxidants you might compare vitamin C content. If you compared vitamin C content between our two most popular fruits, apples and bananas, then bananas would appear twice as healthy (10 mg in a banana compared to only 5mg in an apple). But vitamin C is just one of thousands of different phytonutrients in fruits and vegetables. It turns out the vitamin C in apples accounts for less than 1 percent of an apple’s total antioxidant activity.
In my 5-min video Which Fruit Fights Cancer Better? I show a graph of the total antioxidant content of a red delicious apple. The amount contributed to the vitamin C is so tiny you can hardly see it. Even though there are only about 5mg of vitamin C in a small apple, it has the antioxidant equivalent of 1500 mg of vitamin C! I’ve reviewed before how taking that much vitamin C straight in a supplement may actually have apro-oxidant effect and cause DNA damage (in my video Preventing Exercise-Induced Oxidative Stress With Watercress), but you can get three times that antioxidant power eating an apple, without the adverse effects.
Of course there’s more than just vitamin C in bananas too. I was surprised to see astudy out of Harvard suggesting that bananas were a significant source of anthocyanins, the red/blue/violet phytonutrients found in berries. Maybe I underestimated bananas? They are, after all, technically berries.
Anthocyanins have been found in blue, purple, orange-red, red-purple, and pink-purple wild bananas, but none in domesticated yellow. In the Harvard researchers’ defense, they just took values from the USDA, and it turns out USDA apparently made a mistake. There are no anthocyanins in store-bought bananas, and despite twice the vitamin C, bananas are beat out by apples in terms of overall antioxidant power. But that’s just measuring the ability of these fruits to quench an oxidation reaction in a test tube. It would be nice to measure actual biological activity.
In the red delicious apple study, researchers also measured the ability of apple extracts, from both peeled and unpeeled apples, to suppress the growth of human cancer cells growing in a petri dish compared to control. Wouldn’t it be great to be able to compare that kind of superpower between different fruits? Well, now we can!
In my video Which Fruit Fights Cancer Better? I show a graph of cancer cell proliferation versus increasing concentrations of the 11 most common fruits eaten in the United States. If you drip water on these cancer cells as a control, nothing happens. They start out powering away at 100 percent growth and they keep powering away at 100 percent growth. And pineapples, pears, and oranges don’t do much better.
Peaches start pulling away from the pack. At high peach concentrations, cancer cell proliferation drops about 10 percent, but bananas and grapefruits appear to work four times better, dropping cancer growth rates by about 40 percent. Red grapes, strawberries and apples do even better, cutting cancer cell growth up to half at only half the dose, but the two fruits that won, causing a dramatic drop in cancer proliferation at just tiny doses, were lemons and cranberries. So if you look at the effective dose required to suppress liver cancer cell proliferation, apples are more powerful than bananas, but cranberries win the day. And there was no effective dose listed for orange, pear, and pineapple since they didn’t appear to affect the cancer cell growth at all.
This study reminded me of my #1 Anticancer Vegetable video (along with its “prequel,” Veggies vs. Cancer).
Other videos in which I rank various foods include:
How can you consume cranberries palatably, though? Check out my recipe for Pink Juice with Green Foam and my video Cranberries versus Cancer.
-Michael Greger, M.D.
PS: If you haven’t yet, you can subscribe to my free videos here and watch my live year-in-review presentations Uprooting the Leading Causes of Death and More Than an Apple a Day.
Image credit: kanenas.net / Flickr
Dr. Michael Greger

About Michael Greger M.D.

Michael Greger, M.D., is a physician, author, and internationally recognized professional speaker on a number of important public health issues. Dr. Greger has lectured at the Conference on World Affairs, the National Institutes of Health, and the International Bird Flu Summit, testified before Congress, appeared on The Dr. Oz Show and The Colbert Report, and was invited as an expert witness in defense of Oprah Winfrey at the infamous "meat defamation" trial. Currently Dr. Greger proudly serves as the Director of Public Health and Animal Agriculture at the Humane Society of the United States.

Tuesday, October 1, 2013

Fruits and vegetables often physically resemble the organs they benefit


by Michael Ravensthorpe 

(NaturalNews) The Doctrine of Signatures is an herbalist philosophy attributed to Paracelsus (1491-1541) and later popularized by the German shoemaker Jakob Bohme (1575-1624). It states that all fruits and vegetables share aesthetic properties or 'signatures' with the organ they benefit. While allopathic medicine has attempted to write off the Doctrine of Signatures as superstition, studies have repeatedly shown that its core principles are true. The kidney bean, for example, not only resembles a kidney in shape and color, but also helps to maintain kidney functioning when regularly consumed. Let's take a look at some other examples:

Walnuts - Brain

With its two hemispheres, cranium-like shell and knotted folds, the common walnut looks like the human brain on many levels - and the brain is exactly what it benefits. Walnuts are the only nut that contains large amounts of omega-3 fatty acids, which help to prevent cognitive decline since mammalian brains are composed of, and require, the exact same acids.

Grapes - Lungs

Bunched grapes closely resemble the branches of alveoli that comprise our lungs, and which allow oxygen to pass from the lungs into the bloodstream. Grapes are proven to reduce the risk of lung cancer, and the chemical proanthocyanidin - present in grape seeds - can minimize the risk of allergy-related asthma.

Tomatoes - Heart

Like the human heart, tomatoes are red and usually contain four chambers when sliced. They are an unbeatable source of lycopene, a plant chemical that helps prevent coronary heart disease and which neutralizes the harmful effects of LDL cholesterol. Furthermore, tomatoes are rich in folate, which aids the production of oxygen-carrying red blood cells - the very cells that the heart pumps around the body.

Carrots - Eyes

A sliced carrot strongly resembles the human eye, even down to the complex pattern of the iris. Is nature telling us something? Carrots are extremely rich in beta-carotene, a plant chemical that minimizes the chances of contracting cataracts and developing age-related macular degeneration (a common eye condition that affects approximately 25 percent of individuals above the age of 65).

Avocados - Womb

The womb-shaped avocado takes approximately nine months to grow from blossom to ripened fruit and contains an unusually large seed ('baby') in its center. Eating avocados helps to stabilize female hormones, remove excess birth weight and prevent cervical cancer.

Figs - Testicles

If avocados were designed for female health, then the testicle-shaped figs were surely designed for male health. These sweet fruits hang in pairs, are protected by a delicate skin and, when sliced, reveal thousands of stringy white seeds. Figs are known to increase sperm count and sperm mobility and can help men overcome sterility.

Other examples

Celery - Celery sticks contain identical amounts of sodium (23 percent) to the bones they resemble. Like calcium - which celery also contains in high amounts - sodium is essential for healthy bones.

Ginger - A piece of ginger looks a lot like the stomach it is renowned for settling.

Sweet potatoes - Sweet potatoes closely resemble the human pancreas and help to stabilize the blood sugar levels of diabetics.

Sources for this article include:

http://www.proliberty.com

http://www.richardcassaro.com

http://www.naturalnews.com

http://articles.timesofindia.indiatimes.com

http://www.dailymail.co.uk

http://science.naturalnews.com

http://science.naturalnews.com

Sunday, February 12, 2012

12 Reasons You’re Not Losing Fat | How to Build Muscle, Gain Strength & Become a Better Athlete

1) You’re Eating Too Many Carbs

carbohydrates 300x238 12 Reasons Youre Not Losing FatThis should be pretty obvious to most people by now, but there are still the old die-hards out there who swear that everyone should be consuming two grams of carbs per pound of bodyweight every day while maintaining a low fat intake. Load up on whole grains and fruit while cutting down on healthy, essential sources of fat like grass fed beef they’ll tell you.
Anyone experienced in physique transformation knows this is nonsense.Most people have a terrible tolerance for carbs, shitty insulin sensitivity and simply don’t do enough physically demanding work to warrant too many carbs. If you want to get lean cutting carbs is usually one of the first and most important steps you need to take. That doesn’t mean you can’t have any but you need to make smart choices and they need to be taken in at the right times and cycled properly.

2) You’re Eating Carbs at the Wrong Time

If you’re above 20% body-fat pretty much any time is the wrong time. In that case I would only recommend vegetables and possibly some post workout potatoes or a once per week refeed. When you get down to 15% you can increase the amount of carbs in the post workout meal or the weekly refeed. Everyone else should limit carb consumption to post workout and night time, as per The Renegade Diet rules. During the day you want to be alert and focused, which is one reason why you don’t want to load up on starchy carbs during this time. Save for them for the night time when you want to optimize serotonin production and rest, relax and repair.

3) You’re Eating Too Much Fat

Some people cut carbs and assume that they’re good to go and there’s nothing else to worry about. Unfortunately, the low/no carb diet isn’t as much fun as Dr. Atkins made it out to be. You can’t just eat pounds of bacon and mayonnaise with reckless abandon and think that you’ll magically end up ripped. Fat contains calories; nine per gram to be exact. At the end of the day total calories still matter, and if you’re eating more than you burn you’re never going to get ripped. Please don’t mistake this as my advocating a low fat diet. That’s just as bad, if not worse, than eating too much fat. A bare minimum of 20% of your calories should come from healthy fats like pastured egg yolks, wild caught salmon, grass fed beef and coconut oil to ensure optimal health. Just be careful about going overboard with it and thinking that low carbs automatically leads to single digit body-fat. You still need to keep a handle on things like total calories.

4)You’re Not Eating Enough Protein

protein food 300x203 12 Reasons Youre Not Losing FatIn my experience it’s usually only females who are guilty of this but guys can make this mistake on occasion as well. The average female who can’t lose body-fat usually eats a bowl of oatmeal for breakfast with an egg. One… single… egg.
Then she’ll have a sandwich for lunch with four ounces of lean turkey. For dinner it will be a salad with low fat dressing and four ounces of chicken or fish. Although, in all honesty they may skip the protein all together and just have a salad for either lunch or dinner. Let’s assume she weighs 135 pounds. Most experts would agree that she would need to consume at least 100 grams of protein per day, if not a gram per pound, which would equal 135 grams. Each ounce of protein is around 4.5 grams of protein. So in this example she had 36 grams combined with lunch and dinner plus the six grams from the egg. So that’s a total of 42 grams, which falls just a wee bit shy of where she needs to be.
Females often freak out when you tell them to eat more than six ounces of protein at a sitting but when you break down the numbers for them and reveal just how many calories they’re eating it should make more sense. If they had eight ounces of protein three times per day it would 108 grams of protein. That’s only 432 total calories. Add in the fat and it’s still not that much.
People who eat a sufficient amount of protein usually end up having an easier time getting ripped than those who don’t. Make sure you’re getting enough.

5) You’re Drinking Too Many Protein Shakes

There are two problems associated with drinking shakes when you’re trying to get ripped. First of all, whey protein can raise insulin levels, as I have been telling people since the mid 90’s. If you’re trying to get lean you don’t want insulin to be flowing like the Nile all day. You want a nice insulin surge post workout but the rest of the day you want it under control. That’s why The Renegade Diet limits the intake of whey protein to very small amounts during most of the day and only allows a larger amount post workout or at night.
The second problem with drinking too many shakes is that they are so easy to digest that you don’t really burn any calories when you eat them. When you chew down some salmon and broccoli your body works harder to digest that food and you burn more calories during the digestion process. When you drink something that is so easily digested, like a protein shake, your body does almost no work in the process.
So, when getting ripped is your main goal, limit your shake intake and chew as many calories as you can.

6) Your Liver is Over Stressed

This is usually the last thing people think of when embarking on a fat loss diet but it can sometimes be the most important. Everything that goes into or on your body has to be processed by the liver. That means all food, alcohol, suntan lotion, environmental pollutants, etc. If you are constantly exposing yourself to this kind of stuff and overstressing the liver fat loss will be much more difficult to come by. Cut out booze, stop eating grain-fed, chemical laden meat and incorporate some regular periods of intermittent fasting to give the liver a break and you will find your rate of fat loss is noticeably faster.

7) You’re Eating Nuts

I love nuts. I mean, who doesn’t? Give me a bag of pistachios or cashews and I won’t look up till the whole thing’s gone. The problem is nuts have a ton of calories. When you’re dieting for fat loss the rules are usually the opposite of those followed by skinny hardgainers trying to gain size. Those guys want the most calorically dense foods possible. Fat loss dieters do not. You’re better off filling up on nutritionally dense foods that don’t pack a lot of calories, like green vegetables. If you’re dieting you need to limit your nut consumption to about ten almonds per serving. No too many people can eat ten almonds. Most people eat ten handfuls. If you are strictly tracking and calculating everything all day and you want to load up on nuts at certain times I suppose you could but I wouldn’t recommend it. Nuts can be very problematic for a lot of people, especially those with digestive or auto immune issues. As Paleo Solution author Robb Wolf has noted, nuts should be used the same way you use condiments- sparingly.
I should also add, and this is strictly my opinion, meaning it has NOT been proven and posted on Pubmed… nut butters seem to be easier for most people to digest than actual whole nuts. Just something to consider.

8) You’re Eating Fruit

jolie berry 300x224 12 Reasons Youre Not Losing Fat“What?! You’re telling people not to eat fruit!? Everyone knows that it’s impossible to get fat from eating too much fruit!”
Yeah, yeah I know, that’s why physique competitors eat so much fruit and why all fat loss experts who specialize in getting people shredded recommend such high quantities of it. In our hunter gatherer days fruit was nothing like what you see in the supermarket today. Berries were small, dark and bitter; not the huge sugar sacks most people consume these days. Don’t get me wrong, fruit is healthy and can be eaten by lean individuals in limited amounts but any type of excessive fructose (a sugar found in fruit) consumption will lead to fat gain. Fructose can only be processed by the liver and once liver glycogen stores are full the excess gets converted to triglycerides and stored as body-fat. If you want to get ripped cut fruit completely for a while or limit it to one to two small servings per day. Just be sure to really up the vegetable consumption so you can keep your vital nutrient uptake where it needs to be.

9) You’re Not Training Heavy

When you want to lose body-fat the first inclination is often to crank up the reps and cut the rest periods. I actually have no problem with fairly low rest periods. But not if you’re used to resting three minutes between sets and all of the sudden cut them down to thirty seconds because you decided it was time to get shredded you’ll be in trouble. That never works. All that happens is your weights start plummeting on every exercise and you get weaker and smaller. High reps have the same effect.
When dieting, the primary role of strength training is to maintain muscle mass. That is the single most important thing. Don’t use it as your primary “fat burning” activity… UNLESS you are seriously overweight. If you need to lose more than fifty pounds or so that would probably be fine (although please don’t ever do any of the bullshit you see on those fat camp TV shows). Females can actually get something out of metcon workouts in the right situation as well. The caveat, however, is that that they need to be strong and actually have some muscle mass. If you take a weak female with no muscle and give her a silly metcon circuit she won’t usually get much out of it because she’s too weak to produce enough force. Females should get strong first before they attempt that type of training.
If you’re a guy and are trying to lose 10-20 pounds of body-fat without losing all your muscle mass in the process you should use strength training as a way to maintain size and strength; nothing more, nothing less. So the same principles that helped you get big and strong apply when dieting. Keep the reps low and the resistance high.

10) You’re Overdoing Cardio

Traditional forms of cardio are largely useless for fat loss. But useless is even okay, it’s when it starts to be counterproductive that we have a real problem. Excessive amounts of cardio lead to an overproduction of cortisol which leads to more abdominal fat and numerous health problems. If you want to do cardio that won’t actually hurt you and could do you some good, go for a long walk. No self respecting man should ever be spotted on an elliptical machine.
dog sled chan 12 Reasons Youre Not Losing Fat
Sled work builds muscle, burns fat and is irreplaceable

11) You’re Not Running Sprints or Doing Sled Work

Dieting is the most important thing for fat loss. After that you should be doing some form of strength training to maintain your muscle mass. When you have those to things dialed in you’ll want to add in some type of sprinting or sled work. There is nothing more effective for fat loss. See all wide receivers, defensive backs, sprinters, soccer players, etc. for proof. Two or three 20-40 minute sprint or sled sessions per week will be enough for most people.
Don’t have a sled? 

12) You’re Not Getting Enough Sleep

When you’re short on sleep your insulin sensitivity decreases and your cortisol goes up. Both things lead to less than optimal fat loss. You also miss out on the critically important Growth Hormone boost that comes each night during deep sleep. If you want to lose more fat you have to get more sleep. Most people will ignore this and some of you are probably reading this at 2am. Unfortunately this just might be the most important thing on the whole list. More sleep improves EVERYTHING. Make it a priority.
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