ComputerHunter.org |
|
|
|||
|
 |
A Look at Lactose Intolerance
Lactose is the primary carbohydrate in milk. Cow's milk contains 4-5% lactose, whereas human milk contains almost twice that amount. Lactose provides 30-50% of the energy in milk, depending on the fat content (skim vs. homogenized). A number of individuals are affected by lactose in the diet, but there is a difference between intolerance and maldigestion. Lactose maldigestion is "a disorder characterized by reduced digestion of lactose due to the low availability of the enzyme lactase." Lactose intolerance is "the term for gastointestinal symptoms (flatulence, bloating, abdominal pain, diarrhea, and 'rumbling in the bowel') resulting from the consumption of more lactose than can be digested with available lactase." In other words, intolerance refers to the symptoms of the maldigestive disorder caused by an insufficient enzyme required to hydrolyze lactose to galactose and glucose. Genetic defects often cause a deficiency of lactase, as well as injuries to the mucosa lining of the intestines or with age (as we age our enzyme levels decrease). When lactose molecules remain in the intestine undigested, they absorb water and this can cause bloating, discomfort, cramping, diarrhea, and nausea. Bacterial fermentation along the intestinal tract that produces lactic acid and gas is also a characteristic of lactose intolerance. It is estimated that one in three adults suffer from lactose maldigestion and it appears to be inherited in about 80% of the world's population, including most Greeks, Asians, and Africans. Those who suffer from any discomfort after eating or drinking milk products can consume foods labeled lactose free or take an enzyme preparation such as Lact-Aid to aid digestion. Do note, however, that lactose intolerance varies and the amount of lactose allowed in a diet depends on an individual's tolerance. Some people cannot tolerate milk, ice cream, or creamed foods, but they can eat aged cheeses and yogurt (some brands are better tolerated than others) without difficulty. Lactose products include: Grain Products: Breads and muffins made with milk, pancakes, and waffles; cake or cookie mixes, pie crusts made from butter or margarine, French toast, some dry cereals, and biscuits. Fruits and Vegetables: Canned and frozen fruits or vegetables processed with lactose, buttered, creamed, or breaded vegetables. Milk and Milk Products: Milk (dried, evaporated, nonfat, and whole), yogurt, ice cream, sherbet, cheese, custard, puddings, and whey and casein proteins manufactured with lactobacillus/acidophilus culture. Meat and Meat Alternatives: Meats, fish, or poultry creamed or breaded, sausage and other cold cuts containing nonfat-milk solids, some peanut butter, and omelets and soufflés containing milk. Other: Instant coffees, margarine, dressings, sugar substitutes containing lactose, toffee, chocolate, creamed soups, butter, cream, some cocoas, caramels, chewing gum, some vitamin-mineral supplements, some drugs, peppermint, and butterscotch. Since calcium is a major component of many lactose-containing foods, it is vital that individuals who are lactose-intolerant receive adequate calcium from other foods (in fact, milk is not an ideal source of calcium, as will be discussed in Chapter Seven). These include almonds, brazil nuts, caviar, kelp, canned salmon, canned sardines, shrimp, soybeans, and turnip greens, broccoli, strawberries, and leafy greens. Leafy greens are currently under suspicion as a viable calcium source since greens are now believed to contain certain calcium binding agents that prevent calcium absorption. You may publish this article in your newsletter, on your web site, or other publications, so long as the article's content is not altered and the resource box is included. Add byline and active link. Notification of the use of this article is appreciated, but not required. Brian D. Johnston is the Director of Education and President of the I.A.R.T. fitness certification and education institute. He has written over 12 books and is a contributing author to the Merck Medical Manual. An international lecturer, Mr. Johnston wears many hats in the fitness and health industries, and can be reached at info@ExerciseCertification.com. Visit his site at http://www.ExerciseCertification.com for more free articles.
Google News - Top Stories
|
|
|
|
RELATED ARTICLES
Create Your Own Diet...Quickly & Easily: If you are like most people, you've tried dieting before. This newsletter is NOT about dieting, but instead about making long-term changes in the foods you choose and eat, WITHOUT sacrificing good taste. Refrigerator Water Filters vs. Bottled Water: Round 1 Water is the single most important element for human existence, yet many people do not know much about water. Water comprises 60% of a human's body weight, counts for 80% of our blood, and comprises over 65% of our brain and muscles. Knowing this, one can see why choosing the best water to drink is of the impost importance. The two main types of water commonly chosen for their healthy properties are bottled water and water that has been filtered via a refrigerator water filter. Knowing the difference between these to types of water will surely help anyone make an educated choice as to what type of water they want to drink. Copping Out the Positive Effects of Copper One must always keep in mind that copper is not just a kind of metal, when it comes to medicine and health, copper is actually a trace element mineral that serves a wide variety of purposes for the body, both on its own as well as a cofactor. Although the body requires a comparatively tiny amount of copper per day, even that little bit of copper is proven to be essential to having very good health. The Benefits of Iodine Initially discovered as a new element in 1811 by Barnard Courtois, knowledge of this substance has come to include the host of benefits it brings to the body as an essential nutrient. For many years, getting enough iodine in the diet naturally was difficult in many geographic regions and remains so for an unfortunately high percentage of the world's population in the developing nations. With the introduction of iodized salt, meeting the daily iodine requirement became nearly effortless and inexpensive in the industrialized nations. In these nations, iodine deficiency is now rare. As developing nations are able to make the shift to iodized salt, their rates of iodine deficiency and the diseases associated with it have also begun to decrease. When You Eat at the Fridge I spent a few days at a resort in Mexico this past summer for a friend's wedding. I've known her since the 2nd grade and it was a really fun time hanging out with familiar faces. Top Ten Ways to Avoid Holiday Weight Gain Did you know the average American gains 5-7 pounds every year between Thanksgiving and New Year's Day? That equates to ingesting at least 17,500 more calories than you burn on a daily basis during that time period. At a minimum, that equals nearly 500 extra calories per day on average over that stretch of days. Try a Slow-Carb Habit Carbohydrates - found in grains, breads, pasta, and sugar, as well as vegetables, fruit, tofu, beans, and dairy - provide the body with the most efficient fuel for energy production and brain activity. They're nutritionally essential, a principle currently downplayed by the "low-carb craze". Let Your Freezer Be Your Ally! Most recipes end with instructions to "serve immediately." You could conceivably serve any one immediately but how about putting meals in the deep freeze for prosperity. "Freezing" is the simplest, quickest form of food preservation and its a safe and convenient way to preserve food for months until you're ready to enjoy them. That Cookie Might Kill You! Chances are you may have had a food product that contained Trans Fatty Acids. What's the danger you ask? I 'm about to share with you just a little of the hidden dangers and certain death that some of the most popular foods you eat can cause. Death, Aging, Rejuvenation (Part 4) Biological clock Sports Nutrition Made Simple Following these simple nutrition guidelines will allow you to lose weight, and an abundance of energy throughout the day. Ambrotose Complex Mannatech's patent-pending glyconutrients complex, Ambrotose, is perhaps the greatest wellness discover in the last 50 years. By understanding it, you are in a better position to help others realize that they too would have this phenomenal nutrient Ambrotose complex working on their behalf as well. The Virtues of Water Did you know that much of our dry skin comes from not drinking enough water? If your skin is dehydrated, then what is drying up on the inside? The human body is over 70% water. Water is not only important for hydration, it is the primary transporter of nutrients throughout the body and is essential for proper bodily functions including elimination. Think you need a laxative? Try some extra water first. Have a headache? Have a drink before you take an aspirin, you might not need it. Just 3% dehydration can cause your thinking to be fuzzy and even cause you to gain a whole pound within 6 months if it is a habit to forgo the faucet. Your minimum water intake should be 64 ounces for adults and more if you exercise. Don't let thirst be your guide. By the time you feel thirsty, you are already dehydrated. The Omega Zone Diet and Fish Oil The Omega Zone Diet and specialists' opinion Good Meal Sizes and Frequency Meal sizes and frequency are very important. Over the years people are amazed by how much food I eat at work in a day and part of this can probably be explained by decent genetics but more importantly I make sure that I have a higher metabolism by eating more smaller meals. Alcohol as a Key Ingredient to a Healthy Diet Evidence suggesting that alcohol is "cardio-protective" first appeared in the literature about 30 years ago. The Framingham Heart Study [the longest running population study of heart disease which began in 1948] provided the first solid evidence of this association. The relationship has now been confirmed by dozens of large population ["epidemiological"] studies. However, physicians have been reluctant to recommend alcohol consumption to patients because of the well-known health consequences of excessive drinking [hypertension, liver disease, increased rates of cancer, violent or accidental death] and the horrors that are associated with "drinking and driving". Beans - The Perfect Food? Beans. Legumes. Pulses. Whatever you call this plant group, they are all edible seeds in a pod. The majority of them are packed with complete plant protein and contain almost no fat. They are also a good source of healthy complex carbs. Blueberries: Healthy and Easy on the Tummy After WLS All of my life I believed the best way to eat blueberries was with a muffin wrapped around them. No way could plain off-the-bush berries taste good. Well, lo and behold, I've been eating blueberries by the handful and they are fabulous! I can tolerate them with my gastric bypass system, I don't overeat or get sick with them. Best of all blueberries are in season now available at supermarkets and farm stands. Feeling Tired? No Pep & Zing? Tap Into Breakfast Smoothies! I'm 40-something years old, and for 40-something years breakfast has been a pain. Some of my earliest memories are getting ready for school with my mother insisting I eat a bowl of cereal. It just never interested me. Once high school started I was skipping breakfast and grabbing two apples on the run for lunch. All my life breakfast simply wasn't something I got interested in or thought about until I made this discovery... Take Back Your Life 5 In parts 1-4 of this series of articles titled "Take Back Your Life", we discussed what could be considered the four wheels of the human wellness vehicle. We discussed the importance of proper cell function, the necessity of having and maintaining a balanced endocrine system, and the role of vitamins and minerals, including certain trace minerals as they relate to wellness, and the value of antioxidants. When considering how many wheels we want on our car for the next road trip, we agree that it would be counterproductive to have less than four. The same is true, figuratively speaking, with regard to the human body. We need four wheels or elements to continually move toward our destination of wellness. We would, most likely, also agree that family car would do well to have a spare wheel and tire in the back to be properly prepared for our next sojourn. Our bodies likewise need a fifth wheel or fifth element to help out on our journey to optimal health. That element is water.
|
|
|
|
|
