Wednesday, May 20, 2009

Is olive oil good for health?

Olive oil is fruit oil obtained from the olive (Olea europaea; family Oleaceae), a traditional tree crop of the Mediterranean Basin. Although more expensive than other oils, olive oil has many health benefits. It has the highest percentage (about 77%) of monounsaturated fat among commonly used oils. Studies have found that consumption of olive oil can lower the risk of heart disease by reducing blood cholesterol levels and blood clot formation. It also contains many antioxidant phytochemicals that have many health benefits.

This oil is extracted by pressing or crushing olives and comes in different varieties depending on the amount of processing involved. Varieties include:

  • Extra virgin: Considered the best, this oil comes from the first pressing of the olives.
  • Virgin: Comes from the second pressing.
  • Pure: Undergoes some processing, such as filtering and refining.
  • Extra light: Undergoes considerable processing and only retains a very mild olive flavour.
Olive oil is great oil for cooking. When cooking with olive oil, save your extra-virgin expensive oils for salads, dressings and vinaigrettes. You can also drizzle it over slices of crusty bread or onto open-face sandwiches. Use it on a baked potato or add it to mashed potatoes instead of butter. Extra virgin olive oil tastes great on cooked vegetables or brushed onto fish or meat before serving.

When sautéing or frying, use either a combination olive oil (one that is simply a blend of
extra virgin and regular olive oil) or a straight olive oil.....more

Saturday, May 9, 2009

Carbohydrates

The simplest form of carbohydrate is sugar. Both processed (refined) and unprocessed foods are carbohydrate. The good carbohydrates are unprocessed whole foods containing natural sugars like lactose in milk and fructose in fruits. The best source of good carbohydrate is from plant source as it provides vitamins, fiber, minerals and pytochemical along with grams of carbohydrate. Carbohydrate is required for various metabolic function of the body. It is the primary source of energy for vital organs, brain, central nervous system and kidney. Carbohydrate is broken down into glucose in the digestive system. Insulin, hormone secreted by pancreas helps the transport of glucose from blood into the tissues as energy.

The bad Carbohydrates are sugar in refined form, such as sucrose (table sugar), added sugar. White refined grains are not good for the body because it provides calories but no nutrients. Refined foods are low in fibers and cause health risk, and also increase the risk of heart disease. Whole grains, vegetables full of fibers are good carbohydrates and also promotes required nutrients and helps lower risk of chronic disease.

The growing varieties of food in supermarkets have left us with food choices that are either harmful or beneficial. We need to act responsible by looking at the nutritional food level when purchasing.

USDA’ survey shows that in the U.S an average adult takes about 20 teaspoons of added sugar that is 320 calories everyday. People do not realize these 320 calories by consuming added sugar can add extra pounds quickly. Too much sugar in diet can quickly cause weight gain. Consuming high carbohydrate diet may predispose to weight gain because one gram of carbohydrate gives four calories. Food high in carbohydrate are also are high in calories. Obesity is the end result of consuming too many calories each day from all sources of carbohydrate, protein and fat. USDA recommends only about 9 teaspoon of added sugar a day. Commercially added sugars in beverages or baked products are to be avoided.

Food containing fibers are good for health and wellbeing. Dietary fibers are indigestible form of carbohydrate not absorbed in the intestinal tract. The foods that are refined or whiter grains have lower fibers. White grains food such as muffins, bagel, hamburger bun, and white rice is poor source of fiber. Fibers based food slows peak in blood glucose level thus reducing the risk for Diabetes. Fibers rich foods such as oats, beans and fruits help lower cholesterol. It also makes full and reach satiety. In order to add fibers to our diet, foods like whole grains, beans, plenty of fruits and vegetables must be included in our daily food choices. Fibers in diet may also have positive role in weight management.

Carbohydrate containing food is usually rated by its glycaemic index. Food that takes longer time to be absorbed is called as low glycaemic index. Whole grains, fruits, veggies, beans have lower glycaemic index as they get absorbed slowly in the body thus avoiding spikes in blood sugar level.

Carbohydrate food that spikes blood glucose level quickly is called high glycaemic index food like potatoes, white bread and white rice. Sugar added foods; starchy foods, raises blood glucose level quickly because they are rapidly absorbed in the blood stream.

Studies have concluded that everyone especially people with diabetes should eat food with low glycaemic food like soy products, beans, fruits, milk and grain bread. Plant based food high in fruits and vegetables, whole grains, legumes and low fat diary products moderate in calories can result in weight management. Boosting vegetarian diet is a smart & healthy move in life.

Best way to achieve healthy weight is to watch calorie intake. The secret to remain healthy is to avoid simple Carbohydrate like sugar sweetened food, soda drinks and sweets; as these are high in calories with no nutrients. This type of food makes us sleepy, tried and increases craving for more sweetened foods.

Carbohydrates’ have an important role in balanced diet so we need to act smart and be careful when choosing carbohydrate containing food.

Monday, May 4, 2009

Lithium in water 'curbs suicide'

Drinking water which contains the element lithium may reduce the risk of suicide, a Japanese study suggests.

Researchers examined levels of lithium in drinking water and suicide rates in the prefecture of Oita, which has a population of more than one million.

The suicide rate was significantly lower in those areas with the highest levels of the element, they wrote in the British Journal of Psychiatry.

High doses of lithium are already used to treat serious mood disorders......click here to read full article.

Sunday, May 3, 2009

Swine flu 'in decline' in Mexico

Swine flu in Mexico, the epicenter of the world outbreak, has peaked, the Mexican health minister has said.

Jose Angel Cordova said the virus, blamed for at least 19 deaths in Mexico, appeared to have peaked between 23-28 April.

"The evolution of the epidemic is now in its declining phase," Mr Cordova told a news conference.

World Health Organization officials said authorities should remain vigilant as the virus could return.

Asked about Mr Cordova's comments, WHO official Gregory Hartl said the current "round of activity".....................click for more news.

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