Friday, May 07, 2010

Carbohydrates, Protein and their Myths

All along, carbohydrates are a main source of energy supplier, alongside with many micronutrients including Vitamin Bs, which are coenzymes, that helps to metabolise the carbohydrates, protein, and fats to provide energy. From many studies, this has been well-attested.

However, there are several studies which opposes the consumption of carbohydrates, in an attempt to lose weight, or for weight control management. Instead, they actually promote the consumption of more protein and no carbohydrates in the diet. Well, if you are a believer of this, you are highly in danger.

Protein generally is obtained from meat products, grain products, legumes, nuts, etc, dairy products, eggs, etc. The consumption of protein in large quantities are generally harmful. However, consumption at moderate to low amounts will help to help to satisfy your appetite as they normally contain substantial amounts of fats in addition to protein. Studies have shown that protein diet may help to reduce weight, but only for a short period and does not outperform in the long run. Restriction to only consume protein may also affect the body adversely and could be equally bad as with eating a diet rich in fat.

Carbohydrates comes from various sources including rice, noodles, bread, starch/wheat-based products, most fruits and vegetables and grains. There are some misunderstanding about carbohydrates that apparently caused people to associate it with obesity.

Carbohydrates can be refined or unrefined. Due to meeting the expectations and desires of consumers nowadays, many food products are actually refined. Refined carbohydrates can be easily found in white flour and products made from white or refined flour, white rice, etc. Noticed that refined carbohydrates usually are "white" in colour?? This is because of the processes which lead the bran and germ of the grains to be removed--for two main reasons, better flavour/taste, more desirable texture (softer and fluffier).

Unrefined carbohydrates on the other hand is beneficial and advantageous. Example of unrefined carbohydrates can be found in fruits, vegetables, and whole grains (comes with the bran, germ and endosperm components). Whole grain is indeed a very nutritious food which contain many nutrients. Unlike refined grain which contain only protein and starch mainly, refined grain contain phytochemicals, protein, high vitamin Bs, vitamin E, and trace minerals including iron, zinc, magnesium. Whole grains also contain good source of dietary fibre for good bowel function and makes you full/ satiate with fewer calories! A healthy diet rich in whole grains, vegetables and fruits, that contains dietary fibre, may reduce the risk of chronic diseases such as heart diseases, stroke and certain cancers.

Studies have shown extended periods of carbohydrates deprivation could shorten lives, one reason being overproduction of methylglyoxal in the body causing damage to blood vessels and tissues. Excessive fats is equally bad. As for excess protein, there is a higher risk of kidney stones and bone loss.

Sum up some important points and also giving some tips to healthy eating and weight management:

1. Eat a variety of foods from all food groups. Standard ratio between carbohydrates: fat: protein is 60: 30: 10. No one food group supplies all the nutrients your body need to stay healthy.

2. Eat a balanced diet. Eat the recommended number of servings for each food group.
Eat in moderation. Foods high in sugar, salt and fat should be consumed in small amounts at all times.

3. To satisfy your appetite, or become full without overeating, choose more unrefined carbohydrates found in vegetables, fruits and especially whole grains such as brown rice. Substitute and Restrict eating too much refined carbohydrates with unrefined carbohydrates.

4. In addition, choose healthier cooking methods. Restrict eating deep-fried foods in the diet to the minimum.

5. Choose more lean cuts of meat rather than red meats, which is high in saturated fats and cholesterol.

6. Exercise such as swimming and outdoor sports like running is great.

Last but not least:

Consume the amount of calories that suits your physical activity level, and do not overeat food especially high in fats as fats releases 9 kcal/g of energy! To attain a good body weight, maintain your calorie intake lower or best, balance it with calorie use by the body.

Disclaimer: This is written by Zyon, who has gathered information and knowledge from many sources, including well established Health Promotion Board, Singapore. This does not guarantee you of any weight loss effectiveness. This is aimed to provide a clearer picture of certain nutrition issues.

Saturday, March 20, 2010

World Water Day 2010


(Courtesy of http://www.unwater.org/worldwaterday/flashindex.html)

The World Water Day falls on 22 March 2010!

UN-Water is dedicating the World Water Day 2010, which sees activities that aim to communicate messages on water quality, ecosystems and human well-being.

As noted currently the quality of water worldwide is declining, due to human activities of two levels--industrial and individual. Industries' chemical and waste discharge into the dams have greatly affected badly on the water quality, and individuals' carelessness for example littering is major cause for concern. Of course there are many other potent factors such as climate change and pollution which lowers the water quality.

Water quality takes on a broad definition as the ‘‘physical, chemical, and biological characteristics of water necessary to sustain desired water uses’’ (UN/ECE 1995). Not only is water used for human consumption, but it is also a valuable source of hyropower. Ensuring good water quality is crucial and worthwhile for long-term fit consumption. We should altogether work towards a good water quality to help sustain healthy ecosystems or else these systems may be altered and cause abrupt changes. For instance, excessive nutrient loading in freshwater increases realm of possibilities of algae bloom and oxygen depletion in the marine waters.

It is important that we human beings not be selfish by not polluting waters. Treatments and restoration of water quality could be done, but it is also the responsibility of us to prevent recontamination of the water, as both processes are usually expensive. Adequate good water quality promotes the water purification provided by the healthy ecosystems itself.

Talking of water quality, distillation and reverse osmosis used in an attempt to purify water may render certain health risk. They both remove or deionise the ions or impurities in the water, and as a result some minerals especially magnesium is lacking in them. When magnesium is not fortified, it can link to higher risk of cardiac death, weakness and illness based on studies. (The Straits Times, March 20, 2010) As of this study, it is recommended to reduce consumption of distilled water especially from unreliable sources.

In summary, World Water Day 2010 themed water quality and ecosystem requires everyone's support.

http://ecostarox.blogspot.com/ supports this cause.




Thursday, March 18, 2010

The Earth Hour 2010

http://ecostarox.blogspot.com supports:



27 March 2010, 8.30 pm

Let's reserve the natural source this Earth hour for future use.

You can:
  1. Shut down electrical appliances not in use;
  2. Switch off lights during this hour; (of course practice this when you can)
  3. Go down to participating shopping centres or areas to join the iniative;
  4. Sleep in the dark;
  5. Outdoor activities, i.e. jogging; night cycling
  6. Support the Earth Hour.