Monday, July 22, 2013

How I select what food to eat........


Understanding Food Labels

August 6, 2009 at 12:54pm
Understanding Food Labels
Jeff Novick, MS, RD

Here are the basics of deciphering food labels, consolidated into ten quick-reference tips.

1. Never believe the claims on the front of the box.

What many think are health claims are actually just marketing pitches and advertisements. And government approved claims, like “low-fat” and “light,” often don’t tell you the whole story. These products may be high in fat as well as sugar, salt, and/or calories.

“Light” ice cream, for example, may still pack in 4 to 5 grams of fat per serving. And “light” and “regular” varieties of ice cream may not differ much calorically.

Never evaluate a product based on one item, such as its fat, cholesterol, sugar, carbohydrate, or salt content. Attempting to cash in on the latest diet or nutrition craze, many companies promote their products based on a single item despite other unhealthy aspects. (Remember “fat-free” foods that were full of sugar and calories?) To be truly healthy, a product must pass several criteria.

2. Always read the Nutrition Facts label and the ingredient list.

They contain information that can really help you determine how healthy a food is. Crackers, for example, may advertise on the front of the box that they’re “trans fat free,” but in the ingredient list you may find fats, like palm oil and coconut oil, that are just as artery-clogging as the trans fats they replaced.

(Tips 3 through 7 show you how to read the Nutrition Facts label.)

3. Check the serving size.

Though the government standardized most serving sizes years ago, many products still post unrealistically small sizes. A serving of oil spray, for instance, is .25 grams. That’s about 120th of an ounce — far less than most people could, or would, spray on a pan with even just one squirt.

4. Check the amount of servings per package.

Decades ago, many products were in fact single servings. A bottle of cola was one serving. One small candy bar was one serving. Today, many products are “super sized” and contain multiple servings. A 20-ounce bottle of soda contains 2.5 servings, at 110 calories each. Now, in the real world, who’s going to drink just one serving of that bottle? Is it any surprise that many of us are super sized ourselves?

5. Check the calories per serving.

All too many people think the “110 calories” posted on that 20-ounce bottle of cola means they’re drinking 110 calories. Hardly. You’ve got to multiply the 110 calories by the total number of servings, 2.5, to realize that you’re actually downing a whopping 275 calories. Don’t get too comfortable with “0s” either. Because some manufacturers use ridiculously small serving sizes (remember that 120th of an ounce of cooking spray?) and because the FDA states that manufacturers can “round down” to zero, some products advertised as calorie-free or fat-free are not. If you eat multiple servings — if, say, you coat an entire skillet with oil spray — you may be tallying up quite a few calories.

6. Check the calories from fat.

It’s on the Nutrition Facts label. Unfortunately, it doesn’t tell you “percent of calories from fat,” which is how all health guidelines direct us to limit fat. You’ve got to do a little math. Divide the number of calories from fat by the total calories. (If the serving’s 150 calories, 50 of which are fat, your product is 33 percent calories from fat.). If division trips you up, go by grams. Use this easy rule. If a product has 2 grams of fat or less per 100 calories, its fat content is within these guidelines for processed foods: the fat, per serving, is 20 percent or less of total calories. You don’t have to be a mathematician to realize that 4 grams of fat per 100 calories is double the fat I recommend. Don’t be fooled by claims like “99 percent fat-free” soup or “2 percent fat” milk. They’re based on percent of weight, not percent of calories. So that can of 99 percent fat-free soup may actually have 77 percent of its calories from fat, or more. And 2 percent fat milk actually has about 34 percent of total calories from fat; 1 percent milk has about 23 percent calories from fat.

If you live in Canada, their food label does not list calories from fat.  However, the do list grams of fat.  So, to get to calories from fat, just multiply grams of fat by 9 and you have calories from fat.   And, if you do not like math, just multiply by 10 and it will be close enough as they already round numbers off.

7. Check the sodium.

Don’t bother with the percentage of Daily Value (DV) of sodium. Don’t bother with Daily Value percentages, period. They’re based on government standards, which are generally not the healthiest guidelines to strive for. Instead, look at the number of milligrams of sodium the serving contains. A great rule of thumb: Limit the sodium in milligrams to no more than the number of calories in each serving. Your daily goal: less than 1,500mg of sodium.

(Tips 8, 9, and 10 show you how to read the ingredient list.)

8. Check the types of fat.

Make sure there are no saturated fats, hydrogenated fats, or tropical oils in the ingredient list, including lard, butter, coconut, cocoa butter, palm oils, shortening, margarine, chocolate, and whole and part-skim dairy products. Polyunsaturated fats (like safflower, soybean, corn, and sesame) and monounsaturated fats (such as olive and canola) are less harmful and would be acceptable, but make sure the percentage of calories from fat are still in line — 20 percent calories from fat or less — or your waistline may start getting out of line. All oils, even “good” oils, are dense with calories.

9. Check the sugar.

Limit caloric sweeteners. Watch out for sugars and other caloric sweeteners that don’t say “sugar” but in fact are, such as corn syrup, rice and maple syrup, molasses, honey, malted barley, barley malt, or any term that ends in “ol,” such as sorbitol or maltitol, or “ose,” such as dextrose or fructose. Try to limit all these added, refined, concentrated sugars to no more than 5 percent of total calories (essentially, no more than 2 tablespoons daily for most folks). Don’t be concerned about naturally occurring sugars in fruit and some nonfat dairy products. However, on the Nutrition Facts label, added sugars and naturally occurring sugars are all lumped together as “sugar.” Your best bet: Look at the ingredient list. Try to avoid foods with added, refined caloric sweeteners in the first three to five ingredients. Because ingredients are listed in descending order of weight, the lower down the label you find added sugars, the better.

10. Make sure that any grain is WHOLE grain.

Many bread and pasta products claim to be whole wheat, but the first ingredient in the ingredient list is often wheat flour, which sounds healthy, but it’s really refined flour. Further down the list will be whole-wheat flour or bran. Scout out products that contain only whole grains. Also look for at least 3 grams of fiber per serving, which often ensures the product is mostly, if not all, whole grain.
If the product sounds too good to be true, it may be. Thousands of new products come out every year, many trying to cash in on the latest diet craze. As we’ve seen with the low-carb craze, many may not be carefully regulated (if at all). In 2001 the Florida FDA evaluated 67 diet products and found all 67 were inaccurately labeled; they contained more sugar and carbs than their labels stated. And recently, consumer laboratories evaluated 30 low-carb nutrition bars and found that 60 percent were inaccurately labeled. Most had more carbs, sugars, and salt than their labels claimed.

During your first few trips to the market, give yourself extra time to evaluate products. You’ll soon speed up! Once you’ve found products that you enjoy and that meet these healthy guidelines, shopping becomes quick and easy. Your health is worth it!

Remember, WHOLE, natural, unadulterated foods, not packaged and manufactured foods, are those foods that pack the nutrient punch. Even when you pick from the “acceptable” processed foods, it should be only a minor part of your diet.

Link to Jeff Novick's website....Great Info Source!

Thursday, July 11, 2013

On the right track...new study on Chronic Disease

Link to complete article.........

US Chronic Disease



CONCLUSION AND FUTURE DIRECTIONS

Given that >55% of US adults do not engage in regular physical activity and >75% do not consume at least five fruits and vegetables a day (261), it is no surprise that chronic diseases are the most common cause of preventable death in the United States. The evidence is overwhelming that physical activity and diet can reduce the risk of developing numerous chronic diseases, including CAD, hypertension, diabetes, metabolic syndrome, and several forms of cancer, and in many cases in fact reverse existing disease. Furthermore, risk of several other chronic diseases may be ameliorated by physical activity and diet, including musculoskeletal diseases such as sarcopenia (352), osteoporosis (398), and arthritis (253), as well as stroke and congestive heart failure (238), chronic renal failure (66), Alzheimer’s disease (182), and erectile dysfunction (97). For instance, it has been reported that only 16% of American women aged 45–64 and <10% of women >65 yr of age report ever engaging in strengthening activities (345). As discussed, especially in the case of hypertension and metabolic syndrome, several studies have shown that physical activity favorably affects chronic disease, but relatively few trials have simultaneously examined both dietary modification and physical activity. Consequently, further studies using combined interventions that attempt to maximize benefits are warranted, as recommended by the ATP III guidelines (98). Additionally, the molecular mechanisms by which physical activity and diet protect against chronic disease are not completely understood, and future studies using translational paradigms should be utilized.Figure 5 summarizes various potential mechanisms by which physical activity and diet may ameliorate cardiovascular-associated chronic disease risk.
Fig. 5.
Hypothesized mechanisms by which physical activity and diet reduce the risk of coronary artery disease (CAD), hypertension, and diabetes.
Many of the studies discussed applied a whole-diet approach, and it cannot be determined whether the benefits noted are due to a higher intake of antioxidants, phytochemicals, minerals, and/or fiber, a lower intake of fat, and/or changes in the dietary fatty acid composition, in carbohydrate type, and/or protein source; however, most likely all of these factors contribute. For example, when one macronutrient is removed, another is added, and whether the benefit is due to the added nutrient, the removed nutrient, or a combination of both is unknown. However, the evidence suggests that numerous dietary changes contribute to the reduction in chronic disease risk, including elimination of refined carbohydrates and fatty foods, such as fast food and sugar-containing beverages, and substitution with a diet based largely on whole foods high in fiber and nutrient density. For example, processing whole grains increases caloric density by ∼10% and decreases fiber and protein by ∼80 and 30%, respectively (86).
A concerted effort to increase primary prevention of chronic disease through the translation of research data on the value of exercise and diet to the general public and legislation to urge implementation of primary prevention strategies as opposed to opportunistic care are essential (99). It is commonly argued that it is difficult to change the lifestyle of obese and sedentary people, but such pessimism may not be justified. For a successful public health approach to chronic disease prevention, we cannot rely on pharmaceuticals but must implement long-term, sustainable behaviors that encourage healthy lifestyles. It is possible to achieve primary prevention of chronic disease by means of a nonpharmacological intervention that can be implemented in a primary health care setting. Chronic disease not only impacts life expectancy but also may significantly blunt quality of life years (268). Additionally, recommendations have been questioned on the basis of their practicality. For example, the Institutes of Medicine recommendation for physical activity of 60 min/day has been questioned on the basis of its feasibility. It is known that 30 min provides important benefits; however, this may be inadequate for maximal health benefits. Similarly, diets recommending higher fruit and vegetable intakes (≥7) (1321,269) and lower fat consumption have been criticized as a result of the perceived inability of patients to adhere to more intensive guidelines. We feel it is essential to make recommendations that are effective and to strive to achieve them, knowing that even some modification, i.e., performing 30 min of activity per day and consuming five fruits and vegetables, will possess important health benefits. In addition, weight loss is a beneficial side effect of diet and exercise, and focus should be shifted to chronic disease reduction because many patients will experience modest weight loss (2–5%) and in the majority of cases still be classified as overweight or obese, yet will significantly reduce their chronic disease risk profile independent of significant weight loss.
Finally, as we look to the role of diet and physical activity in preventing chronic disease in the future, modifying the lifestyle of children is paramount to reducing chronic disease risk. Most children consume diets high in fat, especially saturated fat (189), refined sugar (194), including fast food (55111), soft drinks, and high-calorie fruit juices, and there are known interactions between diet and activity patterns (244) and between in utero and postnatal lifestyle influences and risk of future metabolic disease (397). Furthermore, children are performing less activity as computers, televisions, and video games become more commonplace, combined with elimination of school physical education programs (101197). Encouraging healthy diets and activity in our nation’s children is critical to winning the war against chronic disease.