Sunday, August 8, 2010

Health Benefits of Fats and Carbohydrates

Health Benefits of Fats - yomi yomi
Low fat diets often ignore the importance of fats. While saturated and trans fats may not be good, healthy fats and 'good' carbohydrates are essential

Both fat and carbohydrates seem to be getting a bad rap lately; however, they are two very important factors to any healthy diet and weight loss program. Although too much fat in the diet can cause problems, it is more important to focus on the type of fat being consumed. This means avoiding "bad" fats such as trans fat and hydrogenated vegetable fats and focusing on "good" fat such as that found in nuts, seeds, avocados and olive oils.
Carbohydrates and Low Fat Diets

Carbohydrates are a vital component to a healthy diet too. Carbohydrates provide energy along with lots of essential nutrients. Carbohydrates can be found in fruits and vegetables, grains and in milk and dairy products. However, not all carbohydrates are created equal so it is important to choose the "right" ones, particularly for weight loss. Low fat diets often have far too many refined carbohydrates and ignore the amounts of sugar eaten.

When shopping for bread and cereal, try to choose those made with whole grains and avoid the more highly refined white varieties. Limiting intake of sugars, including fizzy drinks, sweets and processed baked products is also important. Consuming large amounts of high calorie, low nutrient foods can make it very hard to stick to a healthy diet without gaining weight.
Health Benefits of Fats

Fats supply essential fatty acids and act as carriers for fat soluble vitamins such as vitamins A, D, E, K and carotenoids. Fats also have an important role as building blocks for membranes and tissues and they regulate many different body functions.

Dietary fat can be obtained from both plant and animal sources and most people’s diets contain adequate amounts. However, studies have shown that severely limiting fat intake can be dangerous. Extremely low fat diets should only be used under a doctor’s supervision. Most experts recommend keeping your fat intake to around 20% of calories.

It is the type and amount of fat that is important. Diets high in saturated fats and trans fats have been linked to a wide range of diseases, including stroke, some cancers and heart disease. It is also thought that obesity may be linked with high levels of dietary fats.
How to Avoid Trans Fats

The biggest problem with excess fat intake seems to be with saturated fats and trans fats. Trans fats are usually listed as hydrogenated or partially hydrogenated fat on labels. The easiest way to keep levels of saturated fat levels low is to limit the amount of animal fats in the diet. This includes meats such as bacon and sausages along with butter and ice cream.

There are lots of types of fish that are excellent sources of omega-3 fatty acids or "good" fats. Research has shown omega-3’s promote good health and may even lower cholesterol levels.

References:

Kris-Etherton PM, Harris WS, Appel LJ. Fish consumption, fish oil, omega-3 fatty acids, and cardiovascular disease. Circulation. 2002;106(21):2747-2757.

Mensink RP, Katan MB. Effect of dietary fatty acids on serum lipids and lipoproteins. A meta-analysis of 27 trials. Arterioscler Thromb. 1992;12(8):911-919.

Burr ML, Fehily AM, Gilbert JF, et al. Effects of changes in fat, fish, and fibre intakes on death and myocardial reinfarction: diet and reinfarction trial (DART). Lancet. 1989;2(8666):757-761.

Article:
http://proteins-carb-fats.suite101.com/article.cfm/health-benefits-of-fats-and-carbohydrates

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