Are Mega-Doses Of Vitamins Safe?
In today’s health-conscious society, much attention has been paid to vitamin supplementation and the role it plays in total body health. In addition to promoting optimum wellness, vitamin supplements are taken for reasons such as protecting the heart, reducing the risk of cancer, boosting the immune
system, relieving the symptoms of PMS, alleviating depression and anxiety, improving the memory, and even weight loss.
There have been some publicized theories that advocate the use of extremely high doses, or mega-doses, of certain vitamins. Care should be taken when considering this kind of supplementation. While some vitamins are safe in large doses, others can be harmful. Here are the most commonly used
vitamins and the safest maximum doses for each:
Vitamin A – Vitamin A is a fat-soluble compound that is crucial for healthy vision, cell growth, and immune system function. Vitamin A should not be taken in excess of 10,000 IU which is twice the daily recommended allowance for adults.
Vitamin B6 – Vitamin B6 is a water-soluble vitamin that is required for protein metabolism, the delivery of oxygen to cells, and the regulation of blood glucose. Excessive Vitamin B6 can cause debilitating and dangerous nerve damage. Do not exceed 100 mg of Vitamin B6 per day.
Vitamin B12 – Vitamin B12 is essential to healthy red blood cells and nerve cells in the body. Vitamin B12 also plays a vital role in the creation of human DNA. Although this compound is well-tolerated and has a low level of toxicity, it is recommended that you do not exceed 3,000 mcg per day.
Folic Acid – Folic acid contributes to the development of DNA, and is also needed for the metabolism of important amino acids. It is especially crucial for pregnant women. Folic acid has a low toxicity level, however the recommended maximum dose for adults is 1,000 mcg.
Vitamin C – Vitamin C is necessary for the production of collagen, growth and repair of the body’s tissues, and a healthy immune system. However, too much Vitamin C can cause harmful oxidation in the body. No more than 2000 mg per day should be consumed.
Vitamin D – Vitamin D is essential for normal levels of phosphorus and calcium in the blood. Vitamin D is an important contributor to strong bones and teeth. Excessive Vitamin D intake (more than 10,000 IU) can lead to bone pain, nausea, vomiting, and even kidney stones.
Vitamin E – Vitamin E is an antioxidant that helps protect the body against free radicals. However taking more than 1,000 mg can cause heart problems and excessive bleeding.
Talk to your doctor to learn more about the safe dosage levels of vitamin compounds. It’s not always a good idea to buy into the latest health fads, or to believe the sales copy you read on the product bottle.
Aerobic Effort for Good Fitness
No matter who you are in the world, you have to have aerobic exercise. It is required for a healthy body and a quality way of life. It has many of pros and will make you feel greater in all aspects of your life. Why should you do aerobics?
Muscle groups get more blood and oxygen from the body during an aerobic exercise session. It is not good to halt suddenly from an aerobic activity. Cramping and dizziness can occur from this. After a relatively intense work out, a cooling off session is always a good idea. Running in place for a little while is a good suggestion if anyone gets too tired during a work out session. More efficient use of the lungs by raising the oxygen transported to them as well as the heart using this oxygen more effectively are a few of the pros of aerobic exercise. The definition of aerobic translates to with air, or with oxygen. It is a work out that is lower in intensity and lengthier in duration. With aerobic work outs, a person uses the same large muscle group in a repetitive movement from between fifteen to thirty. A heart rate of around 60 to 80% is the objective to maintain. Just a few aerobic activities are: light running, cycling, walking, or treading water. These sessions should be able to be done without someone breathing hard. You are possibly anaerobically exercising if you are unable to carry on a short conversation.
Aerobic exercise has so many benefits that it is wild to picture that we sometimes do not take the time to do it for ourselves. It maintains and reduces body fat, boosts our total stamina, gives us extra energy, assists in our resilience to tiredness, increases our muscles, and increases our lean body mass. It also helps us mentally by improving mood, lowering anxiety, reducing depression, reducing tension, and having us sleep better at night. Who cannot benefit a bit from all that?These are pros that people could all use.
Exercise that is higher in intensity and shorter in time is called anaerobic exercise. The body wears out faster and develops muscle more quickly with anaerobics. Many sports are categorized as anaerobic exercises: soccer, downhill skiing, weight lifting, basketball, and football. Running or sprinting is another one. Anaerobic exercise will boost the chances of the body becoming sore.
An aerobics class may be a good start for people who want to reap the rewards of aerobic exercise and aren’t positive how to begin. In an aerobics class, you can do high or low intensity cardiovascular. The instructor will be able to show class members how to perform these moves either way. How high you carry your limbs up during the aerobic session is how the intensity is measured. People must do the level of intensity pertaining to their abilities and the frequency of their aerobic sessions.
The objective while working out aerobically is to achieve your target heart rate and remain at that for the entire period you are working that group of muscles. This works the heart more efficiently and has the body burn a greater amount of calories. The aerobic curve is something some people will reach. This is when you begin exercising and elevate your intensity level to the peak then slow down gradually. It is more efficient to maintain that continuous rate as your heart rate rises. The lungs and heart endure longer and work more effectively when they are trained. People that perform aerobic exercise on a routine interval will have to exercise harder to reach their target heart rate as their endurance increases. People who are just beginning will reach their target heart rate fast until their body becomes adjusted to the exercise.
Aerobic exercise may be somewhat difficult to do at first, but it is absolutely necessary for cardiovascular fitness. A healthy body takes steady aerobic sessions and is a continuous process. People who are in good cardiovascular condition can keep this by exercising a minimum of three times a week. Those who are trying to lose weight and elevate their level of health should exercise four or five intervals a week.
Benefits of Strength Training
The benefits of a good strength training program are almost endless. Less disease, happiness and most importantly, showing off your muscles at the beach.
Strength training should be part of everyone’s routine. Even if you are low on time, strength training, according to the ACSM (American College of Sports Medicine), only needs to be done 2-3 times per week with each session lasting no more than one hour. For 2-3 hours per week, huge benefits can be realized.
Regular strength training will:
**help you in day to day activities around the house and in your yard. It will keep you independent which is especially important in the older population. Imagine not being able to lift a 5 pound bag of flour or take the garbage out by yourself.
**lower the risk of osteoporosis, hypertension and diabetes.
**help you avoid lower back pain.
**increase bone density which is important for post menopausal women.
**increase muscle mass which burns more calories throughout the day than an equal amount of fat.
Even with all these benefits, many people are reluctant to start training with weights. Concerns include injury, incorrect form and for women; not wanting to grow muscles and look like a man.
When beginning your strength training program, the risk of getting hurt can be greatly reduced by starting out with machines rather than free weights. As you become more comfortable with the machines, slowly learn to use free weights. If you want to stick with the machines, know that they will give you the same benifits as free weights. As for the concern that women will look like men, it won’t happen without the help of steroids, which you shouldn’t even consider using.
Sometimes when we think of being healthy, we think of eating and running. While these are important, strength training should never be left out. Strength training provides benefits to your health that cannot be found with any other mode of exercise and shouldn’t be forgotten.
Whole Versus Enriched Grains: What’s The Difference?
Many say today’s consumer is overwhelmed with information on whole and enriched grains. With all the conflicting information, it can be difficult to understand what to eat to maintain a healthful and balanced diet.
First, it is important to understand grains. Grains come from the seed-heads of grasses, which are then milled or processed into food such as bread, cereals, pasta and tortillas. Whole grains are composed of an entire kernel-the bran, germ and endosperm. The bran forms the outer layer of the seed and is a rich source of niacin, thiamin, riboflavin, magnesium, phosphorus, iron, zinc and most of the seed’s fiber. The germ is the part from which a new plant sprouts and is a concentrated source of niacin, thiamin, riboflavin, vitamin E, magnesium, phosphorus, iron, zinc and contains protein and some fat. The endosperm, which is about 80 percent of the kernel, makes up the rest of the seed and contains most of the grain’s protein and carbohydrates.
Whole grains are very nutritious-they are a good source of fiber and other important nutrients such as selenium, potassium and magnesium. A high-fiber diet has been shown to help lower your risk of type II diabetes, obesity, heart disease, some cancers and other disorders such as hemorrhoids, irritable bowel syndrome and the development of diverticular disease. Whole grain sources include barley, brown rice, bulgur, cracked wheat, millet, oatmeal, popcorn, whole corn, whole rye and whole wheat and flours from these components. Other pseudo-grains, such as buckwheat, amaranth, quinoa and wild rice, are often accepted as whole grains.
White flour is made from just the endosperm; however, 95 percent of all white flour in the U.S. is enriched, meaning the three major B vitamins, thiamin, riboflavin, niacin and iron are added back in the same proportion as is found in the whole kernel. Folic acid is added in twice the amount of that found in whole grains.
Enriched grains are the primary source of folic acid in Americans’ diets and, according to the Centers for Disease Control and Prevention (CDC), have been credited with lowering neural tube birth defects by 34 percent in Whites and non-Hispanics and 36 percent in Hispanics since folic acid fortification of enriched grains became mandatory in 1998. Enriched grains also account for a major source of iron in the diets of most Americans. Fortification of folic acid has also been shown to reduce the incidence of strokes in the U.S. and Canada.
All types of whole and enriched grain products are good for you-and are one of the healthiest and most convenient foods available. Mistakenly thought of as fattening, grain products should fit into a healthy-eating plan-especially as evidenced by the USDA’s new MyPyramid. The recently released Dietary Guidelines recommend at least half of all grain products consumed be whole grain products and the remaining from other grain sources, including enriched.
Trends such as low carbohydrate diets may come and go, but bread is here to stay. When choosing grain products, consider the many types available and vary them in your diet. Grains can increase your protein intake, add fiber to your diet and provide the appropriate carbohydrates for your muscles. Eating a variety of grains not only ensures you get more nutrients, it can make meals and snacks more delicious and delightful.



