Jun 26, 2010

Several Kinds Of Fats


There are several different kinds of fat. Not all of them are bad for you. Learn which ones to consume and which ones to avoid using this short guide from Bob Greene’s The Best Life Guide to Managing Diabetes and Pre-Diabetes.
Healthy Versus Unhealthy Fat
Everyone has to watch their intake of unhealthy fats, but if you have diabetes, you have to be extra vigilant. As you’ll learn shortly, unhealthy fats can worsen insulin resistance and make your already heightened risk for heart disease that much greater. It’s not the total fat consumption that matters so much; it’s the type of fat consumed that affects your health. Your mission: to bring in more healthy fats and root out the unhealthy ones. We’re not necessarily suggesting that you add more fat to your diet, although if you’ve been on a very-low-fat diet and aren’t enjoying it, that may be a good idea. The goal here is to replace the unhealthy fatty foods with foods containing healthy fats.
If ordering a side of guacamole with your chicken fajita, snacking on a handful of mixed nuts, and sauteĆ©ing your favorite vegetables in olive oil and garlic all sound appealing to you, you’re already a fan of healthy fat. The reason these foods — avocados, nuts, and olive oil — are considered healthy fats is because of the type of fatty acids they contain. These and other foods we think of as fat — oils, butter, margarine, the fat surrounding a steak or sunder the skin of a chicken — are actually composed of different types of fatty acids. And it’s the fatty acids that are either good or bad for your body.
The four types of fatty acids are polyunsaturated, monounsaturated, saturated, and trans. Though most foods contain a mix, usually one type of fatty acid predominates. For instance, olive oil contains 73 percent monounsaturated fat; the rest is polyunsaturated and saturated fat.
The different types of fatty acids have different effects on your health; here’s the scoop.
Healthy Fats: Polyunsaturated and Monounsaturated (Both Called Unsaturated Fatty Acids)These are the fats you should be including in your diet because they are linked to disease prevention. Monounsaturated fats are healthiest, so aim to get the most of these, while polyunsaturated fats are next in line.
Monounsaturated fatty acids are considered healthy because they don’t raise LDL (the “bad” cholesterol that contributes to clogged arteries and heart disease) and they do raise HDL (the “good” form that actually removes cholesterol from your body). Plus, they’ve been linked to greater insulin sensitivity. Nearly all the monounsaturated fat in our diet comes from oleic acid.
Sources: Olive oil and canola oil are loaded with monounsaturated fats, so make these your staple oils. Other mono-rich foods include avocados, almonds, cashews, peanuts, and sesame seeds.
Polyunsaturated fatty acids, which fall into the healthy fat category because they do not raise LDL, include two types:
Omega-3 fatty acids offer a host of health benefits, including reducing inflammation, which, in turn, helps prevent and may even treat diseases such as rheumatoid arthritis and heart disease. These fats also help prevent blood clots and lower blood pressure, can improve mood, and may increase IQ in children. The health effects are so great that there’s a case to be made for taking Omega-3 supplements in addition to what you get from your diet. The three main types of omega-3s are:
  • Alpha-linolenic acid (ALA) is the omega-3 fatty acid that’s found in plants. ALA is critical to our survival; it’s one of the two “essential” fatty acids that the body cannot make, so we must get it from foods (linoleic is the other essential fatty acid)
    • Sources: Have one of the following every day: flaxseeds or flaxseed oil, canola oil, walnuts, and foods enriched with omega-3s, such as these products sporting the Best Life Seal of Approval: Barilla PLUS pasta, Flatout Flatbread, Hellman’s Canola Cholesterol Free Mayonnaise , Silk DHA Omega-3 & Calcium Soymilk (contains both ALA and DHA), Smart Balance Buttery Spread, Smart Balance Peanut Butter.
  • Eicosapentaenoic acid (EPA) and docohexaenoic acid (DHA) are the omega-3s found primarily in fish; there are also small amounts in meat from grass-fed animals. These seem to have more potent and direct benefits to the heart, brain, and joints than ALA and are what make up most omega-3 supplements
    • Sources: Have one of the following fatty fish at least two times a week: bluefish, salmon, sardines, trout, and tuna. Fresh and white albacore canned tuna come from large fish that tend to be high in mercury, so have no more than once a week. Chunk light canned tuna is low in mercury, so it’s okay to have it a few times a week. (the rest of the fish listed are low in mercury.) If you don’t like fish or are allergic to it, you should take an omega-3 supplement; even if you do eat fish, there’s a case for supplementing
Omega-6 fatty acids have also been linked to heart disease prevention. Some argue that because omega-6s can be converted into substances that encourage inflammation, they may actually be bad for the heart and other tissues. However, a 2009 review by the American Heart Association found that most of the evidence points to a heart-protective effect. The most common omega-6 in our diet is linoleic acid, which, like ALA, is an essential fatty acid. Most people get more than their share of omega-6s because these are the predominant fats in many processed foods, such as frozen foods, baked goods, and salad dressings, as well as restaurant fare. There are also omega-6 fatty acids in olive and canola oils, which should become your staple oils for home use.
Sources: Corn, sesame, sunflower (not “high-oleic sunflower oil,” which is high in monounsaturated fat), soybean, and walnut oils.
Unhealthy FatsCut back on foods high in saturated fat, and make it a point to avoid sources of trans fat altogether.
Saturated fatty acids are considered unhealthy fats because when eaten in excess, they raise LDL (“bad” cholesterol) and have been linked to an increased risk for heart disease, breast, colon, prostate, and pancreatic cancer. To make matters worse, a high intake of saturated fat appears to increase insulin resistance.
Sources: You can’t avoid saturated fat completely because it’s in many healthy foods, including olive oil, but you can limit the loaded sources, such as butter, cream, full-fat cheese, whole milk, fatty meats, and chicken skin. A few plant foods, such as palm and coconut oil, are also high in saturated fat. Fortunately, the type of saturated fatty acid in the cocoa butter in chocolate (stearic acid) does not raise LDL. Sometimes you luck out!
Trans-fatty acids are the most unhealthy fats of all. Not only do they raise LDL, but they also lower HDL (“good” cholesterol). These fats appear to promote visceral fat, the deep belly fat that surrounds the organs, which can trigger heart disease and insulin resistance. Although trans fat exists in small quantities naturally in fatty meats and high-fat dairy foods, the major source is man-made partially hydrogenated vegetable oil, a solid fat that is used in some commercial baked goods and makes food more shelf-stable.
Sources: Foods made with partially hydrogenated oil, including some cookies, cakes, crackers, pie crusts, and other baked goods, frozen foods, and margarine. (Fortunately, now there are brands of margarine or spreads such as Smart Balance Buttery Spread, which carries the Best Life seal, that have no partially hydrogenated oil.)
ABOUT THE AUTHOR
Bob Greene, author of The Best Life Guide to Managing Diabetes (Copyright © 2009 by Bestlife Corporation), is an exercise physiologist and certified personal trainer specializing in fitness, metabolism, and weight loss. He holds a master’s degree from the University of Arizona and is a member of the American College of Sports Medicine and the American Council on Exercise. For the past seventeen years he has worked with clients and consulted on the design and management of fitness, spa, and sports medicine programs. Bob has been a guest on the Oprah Winfrey Show. He is also a contributing writer and editor for O the Oprah magazine, and writes articles on health and fitness for Oprah.com. Greene is the bestselling author of The Best Life Diet CookbookThe Best Life Diet Revised and UpdatedThe Best Life DietThe Best Life Diet Daily JournalThe Total Body MakeoverGet With the Program!The Get With the Program! Daily JournalThe Get With the Program! Guide to Good Eating, and Make the Connection.

Jun 8, 2010

Health Tips For Busy People: Healthy Diet & Exercise In the Office


Many women's lifestyle magazines frustrate us by providing exercise regimens for work and then adding: "You can do this exercise in your office!" What about those of us who work in a cube or other small space (with no floor space for Pilates-style stretches) that's not very private (do you really want your boss to wander by right when you're doing jumping jacks?). Even if you are cube-confined, you can maintain your health in a cube.

Make A "Health" Drawer

Your filing spaces are your friends. Most cubes have lots of little drawers. Make one of them a "health" drawer. Add a ziplock bag or two with healthy non-perishable snacks in it (maybe dried veggies), a few bags of herbal, non-caffeinated tea (switch over from coffee midday to help you sleep better at night), and a travel-size hand-sanitizing gel for use regularly when there's a cold going around the office (did you know most colds are transmitted through shared objects like doorknobs?). A decorative canvas bag can store an extra pair of athletic shoes in case you can take a 10 minute walk or stretch break over lunch.

Get Blood Back To Your Brain:

Pop goes the weasel. When you sit in a cube in front of a computer or on the phone for hours at a time, gravity pulls your blood towards your feet. It pools in your feet, ankles, and fanny; if you're ever noticed your feet looking puffy towards the end of the day, the puffiness may be a side-effect of having blood spending so much time down there! Our arm and leg muscles function as "pumps" to get blood back to the heart.

While you could just do jumping jacks to get the blood flowing back upwards, there are less noticeable ways to get blood moving: If you've got a shelf in your high in your cube, keep daily useables (paperclips, stapler) there; getting up regularly will remind you to stretch. While standing lift your legs up at the knee, one at a time, to help get blood flowing. One enterprising woman kept a postcard pinned up towards the very top of her cube wall - and kept an ever-growing collection of postcards that she exchanged every day in the afternoon. The new postcard each day perked her up, and it gave her a reminder to get up and stretch several times a day.

Muscular injury is common in the desk-job world. The Center for Disease Control reports that 92,576 injuries resulted from repetitive motion, including typing or key entry. Make sure to take breaks from the keyboard at least once an hour. Use a wrist support at your computer when you are typing or browsing, Your forearm, wrist, and hand should be on a level, not making a V. The Harvard RSI action group suggests some exercises to help prevent repetitive stress injuries (http://www.rsi.deas.harvard.edu/). If you spend a lot of time on the phone and can't use a speaker phone, don't hold the phone by crunching your shoulder against your ear. Instead, invest in or ask for a headset or shoulder support for your receiver.

Drink Plenty Of Water:

Drinking water is very important. It can help you recover from a cold more quickly (though it doesn't "cure" it), replenish lost fluids after exercise, and assist in weight loss (many people think they are hungry when they are actually thirsty, so make sure to take a drink before diving for the candy machine). Keep a four-cup bottle or thermos near the computer and replenish daily. Don't overdo though - excess water can dilute important minerals and vitamins in your blood stream.

Make Sure To Take Your Vitamins & Other Pills:

Pill reminders. Do you need regularly forget to take vitamins because you're busy? Find an attractive, desk-top container to put the bottle in - a decorative flower pot is one option. Something attractive and eye catching will remind you it's there. This can also work for daily medications, but keep in mind that some medications can be toxic to others or have street-value (many prescribed pain killers), so these are medications that should stay with you, rather than your desk.

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