Saturday, December 29, 2007

I know a healthy diet means I should control my fat intake, but I'm confused by all the different kinds of fats in foods! How do I know which ones are

There are different kinds of fats in our foods. Some can hurt our health, while others aren't so bad – some are even good for you! Here's what you need to know:

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Monounsaturated fats (canola, olive and peanut oils, and avocados) and polyunsaturated fats (safflower, sesame, sunflower seeds, and many other nuts and seeds) don't raise your LDL ("bad") cholesterol levels but can raise your HDL ("good") cholesterol levels. To keep healthy, it is best to choose foods with these fats.
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Saturated fat, trans fatty acids, and dietary cholesterol raise your LDL ("bad") blood cholesterol levels, which can lead to heart disease. Saturated fat is found mostly in food from animals, like beef, veal, lamb, pork, lard, poultry fat, butter, cream, whole milk dairy products, cheeses, and from some plants, such as tropical oils. Tropical oils include coconut, palm kernel, and palm oils that are found in commercial cakes, cookies, and salty snack foods. Unlike other plant oils, these oils have a lot of saturated fatty acids. Some processed foods (such as frozen dinners and canned foods) can be quite high in saturated fat — it' s best to check package labels before purchasing these types of foods.
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Trans fatty acids (TFAs) are formed during the process of making cooking oils, margarine, and shortening and are in commercially fried foods, baked goods, cookies, and crackers. Some are naturally found in small amounts in some animal products, such as beef, pork, lamb, and the butterfat in butter and milk. In studies, TFAs tend to raise our total blood cholesterol. TFAs also tend to raise LDL ("bad") cholesterol and lower HDL ("good") cholesterol. One study found that the four main sources of trans fatty acids in women's diets come from margarine, meat (beef, pork, or lamb), cookies, and white bread. At this time, TFAs are not listed on nutrition labels, but that will soon change. Although it might take a couple of years to begin seeing it, the Food and Drug Administration (FDA) is now asking food manufacturers to begin labeling TFA content. And some food manufacturers are announcing they are taking TFAs out of their food.

Tuesday, April 17, 2007

What are the most important steps to a healthy diet?

The basic steps to good nutrition come from a diet that:

  • helps you either lose weight or keeps your BMI in the "healthy" range.

  • is balanced overall, with foods from all food groups, with lots of delicious fruits, vegetables, whole-grains, and fat-free or low-fat milk and milk products.

  • is low in saturated fat, trans fat, and cholesterol. Keep total fat intake between 20 to 35 percent of calories, with most fats coming from sources of polyunsaturated and monounsaturated fatty acids, such as fish, nuts, and vegetable oils.

  • includes a variety of grains daily, especially whole-grains, a good source of fiber.

  • includes a variety of fruits and vegetables (two cups of fruit and 2 1/2 cups of vegetables per day are recommended for a 2,000 calorie diet).

  • has a small number of calories from added sugars (like in candy, cookies, and cakes).

  • has foods prepared with less sodium or salt (aim for no more than 2,300 milligrams of sodium per day, or about one teaspoon of salt per day).

  • does not include more than one drink per day (two drinks per day for men) if you drink alcoholic beverages.

Sunday, April 15, 2007

How can I start planning a healthy diet for me and my family?

You can start planning a healthy diet by looking at the Dietary Guidelines for Americans 2005 (http://www.healthierus.gov/dietaryguidelines) by the U.S. Department of Agriculture (USDA) and the Department of Health and Human Services (HHS). The best way to give your body the balanced nutrition it needs is by eating a variety of nutrient-packed foods every day. Just be sure to stay within your daily calorie needs.

Mix up your choices
within each food group
Fruits Focus on fruits. Eat a variety of fruits – whether fresh, frozen, canned or dried – rather than fruit juice for most of your fruit choices. For a 2,000 calorie diet, you will need 2 cups of fruit each day (for example, 1 small banana, 1 large orange, and 1/4 cup of dried apricots or peaches).
Vegetables Vary your veggies. Eat more dark green veggies, such as broccoli, kale, and other dark leafy greens; orange veggies, such as carrots, sweetpotatoes, pumpkin, and winter squash; and beans and peas, such as pinto beans, kidney beans, black beans, garbanzo beans, split peas and lentils.
Calcium-rich foods Get your calcium-rich foods. Get 3 cups of low-fat or fat-free milk – or an equivalent amount of low-fat yogurt and/or low-fat cheese (1 1/2 ounces of cheese equals one cup of milk) – every day. For kids aged 2 to 8, it's 2 cups of milk. If you don't or can't consume milk, choose lactose-free milk products and/or calcium-fortified foods and beverages.
Whole-grain foods Make half your grains whole. Eat at least 3 ounces of whole-grain cereals, breads, crackers, rice, or pasta every day. One ounce is about 1 slice of bread, 1 cup of breakfast cereal, or 1/2 cup of cooked rice or pasta. Look to see that grains such as wheat, rice, oats, or corn are referred to as 'whole' in the list of ingredients.
Foods high in protein Go lean with protein. Choose lean meats and poultry. Bake it, broil it, or grill it. And vary your protein choices – with more fish, beans, peas, nuts and seeds.

Know the limits on fats, salt and sugars. Read the Nutrition Facts label on foods. Look for foods low in saturated fats and trans fats. Chose and prepare foods and beverages with a little salt (sodium) and/or sugars (caloric sweeteners).

Why should I try to have a healthy diet?

Having a healthy diet is one of the most important things you can do to help your overall health. Along with physical activity, your diet is the key factor that affects your weight. Having a healthy weight for your height is important. Being overweight or obese increases your risk of heart disease, type 2 diabetes, high blood pressure, stroke, breathing problems, arthritis, gallbladder disease, sleep apnea (breathing problems while sleeping), osteoarthritis, and some cancers. You can find out if you're overweight or obese by figuring out your body mass index (BMI). Women with a BMI of 25 to 29.9 are considered overweight, whereas women with a BMI of 30 or more are considered obese. All adults (aged 18 years or older) who have a BMI of 25 or more are considered at risk for premature death and disability from being overweight or obese. These health risks increase as the BMI rises. Your health care provider can help you figure out your body mass, or you can go to www.cdc.gov/nccdphp/dnpa/bmi/calc-bmi.htm.

Having a healthy diet is sometimes easier said than done. It is tempting to eat less healthy foods because they might be easier to get or prepare, or they satisfy a craving. Between family and work or school, you are probably balancing a hundred things at once. Taking time to buy the ingredients for and cooking a healthy meal sometimes falls last on your list. But you should know that it isn't hard to make simple changes to improve your diet. And you can make sense of the mounds of nutrition information out there. A little learning and planning can help you find a diet to fit your lifestyle, and maybe you can have some fun in the process!

Tuesday, April 3, 2007

Focus on weight undermines motivation for healthy lifestyle changes among people of all sizes

A newly published UCLA study suggests our media and cultural obsession with achieving a certain weight does little to convince couch potatoes of any size to abandon their favorite sofa cushions and get active. In fact, those messages may actually undermine motivation to adopt exercise and other healthy lifestyle habits.

Published in the June edition of the peer-reviewed journal Obesity, the cross-cultural study finds that women are more likely to categorize themselves as overweight than men, both overall and within each ethnic group. In addition, African Americans are least likely and whites most likely to consider themselves overweight. The study finds that even among many adults of average or normal weight -- men in particular -- a self-perceived weight problem correlates with sedentary behavior.

White women of average weight are the only ethnic-gender group studied in which the proportion of sedentary individuals is not higher among those who consider themselves overweight, versus average weight, the study shows. White women are also the only ethnic-gender group in which average-weight individuals comprise the majority.

The researchers noted that in addition to cultural expectations, greater access to fitness programs, "walkable" neighborhoods, quality child and elder care, and flexible work hours all help make the choice to be active easier for white women overall than their Latina and African American counterparts.

"These data suggest that our society's emphasis on weight loss rather than lifestyle change may inadvertently discourage even non-obese people from adopting or maintaining the physical activity necessary for long-term good health," said Dr. Antronette Yancey, lead author of the study and associate professor of health services at the UCLA School of Public Health.

"All groups may benefit from messages that shift the focus away from a specific target weight and associated calorie counting, and instead promote increased physical activity and healthy eating habits," Yancey said. "We still need to learn more about the relationship between overweight self-perception and healthy lifestyle change, and the apparent protective role of the cultural valuation of thinness and stigmatization of obesity in the battle of the bulge." The study used data from the 2002–03 Los Angeles County Health Survey, a random telephone survey conducted by the Los Angeles County Department of Health Services. Of 14,154 eligible adults contacted, 8,167 completed interviews, or 58 percent. Body mass index (BMI) was calculated from self-reported weight and height, and each individual was classified as underweight, normal, overweight or obese. Self-perceived weight status was measured using direct questions asking participants to identify themselves as overweight, underweight or average for their height. Sedentary behavior was measured using standardized questions from an adaptation of the short version of the International Physical Activity Questionnaire.

Among specific findings:

- The prevalence of overweight and obesity among adult Angelenos by race/ethnicity and gender was fairly typical of national samples. The combined prevalence of overweight and obesity was highest in African Americans and Latinos, intermediate in whites, and lowest in Asians-Pacific Islanders. The pattern was consistent among both men and women within each group.

- 73.2 percent of overweight/non-obese and 24.1 percent of average-weight women considered themselves overweight, compared with 44.5 percent of overweight/ non-obese and 5.6 percent of average-weight men.

- 41.3 percent of overweight/non-obese African Americans identified themselves as overweight, compared with 60.6 percent of overweight/non-obese whites.

- Overweight self-perception, versus average-weight self-perception, correlated with sedentary behavior among average-weight adults (45.3 percent versus 33.0 percent), overweight adults (43.4 percent versus 33.6 percent), average-weight and overweight men (38.4 percent versus 27.8 percent), overweight whites (41.9 percent versus 29.7 percent), and African Americans and Latinos (41.6 percent versus 33.9 percent).

Wednesday, February 7, 2007

Low Fat Vegetarian Diet Helps in Weight Loss

If you are struggling to find a diet that is both healthy and successful, you may want to look into an all vegan diet. Vegan is a term that is used for people that do not eat any meat, dairy products or eggs. Most vegans follow a diet of fruits, vegetables, nuts and grains.Popular diets such as the Atkins diet, have shunned carbohydrates found in grains and fruits stating that carbs significantly contribute to fat and excess weight. However, recent studies have suggested that vegans who do not consume cholesterol which is found in meat and dairy products have had significant losses in weight, even if grains and fruits were consumed as part of their diet. In one study, dieters on a vegan diet lost about 33% more weight than dieters on a low cholesterol diet.Many people who are on vegan diet eschew eating any animal products due to their beliefs, but others are finding that a vegan diet can be extremely beneficial for weight loss and healthy for their bodies as well.Many doctors advise that vegetables and fruits should be eaten everyday to supply the body with rich vitamins and minerals. Grains and cereals are an excellent source of fiber which helps the body cleanse itself daily. With a vegan diet not only will you be eating healthy everyday, but you will be losing the fat and pounds as well.