Showing posts with label nutrition. Show all posts
Showing posts with label nutrition. Show all posts

Sunday, July 8, 2007

Eating A Healthful Vegetarian Diet

Many people start vegetarian and vegan diets without devoting an adequate amount of time to nutritional research and meal planning. As a result, a considerable amount of people who start vegetarian diets do not last for more than 1-2 months.

Many dieters who fail to carefully research and plan complain that they lack energy - and often experience a significant loss in muscle mass. Others observe a number of other more peripheral problems that come with a poorly-planned vegetarian diet.

The first group--the group that most failed dieters fall into--is actually experiencing a form of protein-energy malnutrition (PEM). PEM emerges when a person fails to consume enough protein, leading to muscle loss - and subsequently feelings of weakness that are often accompanied by head and muscle aches.

This problem can be circumvented by dietary alterations. A vegetarian who is experiencing PEM should either a) find out what foods contain what amino chains, so they can combine them to form proteins; or b) start consuming larger amounts and more diversified sources of protein, such as nuts, soy milk, and yogurt.

The first group is often iron-deficient as well. Because vegetarians can only consume nonheme iron, which is more sensitive to iron inhibitors, they often do not consume enough to maintain healthy blood-iron levels. This can cause pervasive weakness and even anemia.

Most nutritionists suggest that vegetarian and vegan dieters consume roughly twice the recommended amount of iron while greatly reducing their consumption of iron inhibitors.

People in the second group--the smaller one--who suffer from a range of other peripheral, diet-related problems are often not consuming enough of the nutrients that they would
normally take in unknowingly on a diet that includes meat and dairy products. These nutrients include, for example, zinc, calcium, vitamin b, and riboflavin.

Some recent studies have suggested that vegetarians also process certain types of foods with less efficiency because they consume different amounts and varieties of absorption inhibitors and enhancers.

Recent studies also suggest, however, that a vegetarian or vegan diet, when done right, is
not only as healthful as a non-vegetarian diet, but it is also much more heart-healthy - and usually contains higher amounts of antioxidants.

What does this all mean for you as a prospective vegetarian? It means that eating a healthful vegetarian diet is not only a good alternative to your current diet, but it can also lower your chances of getting heart disease and cancer.

However, in order to eat a HEALTHFUL vegetarian diet, you must actually put in the time to research and plan; if you don’t, you most certainly will end up in one of the two groups discussed above.

Sunday, June 17, 2007

The Top Five Nutrients Vegetarians Lack

Both vegetarian and non-vegetarian diets have advantages. Vegetarian diets tend to be rich in antioxidants, certain vitamins, and healthy fats. Non-vegetarian diets, by contrast, tend to contain more protein, iron, zinc, calcium, and vitamin B-12.

If you already decided to adopt a vegetarian diet, it is essential you learn how to increase your intake and absorption of these nutrients to avoid short-term and long-term health complications.

In the next few paragraphs, I will explain how you can regularly assimilate larger portions of these nutrients into your regular diet:

1. Protein. Different types of protein are made up of different permutations of amino acid chains. In order to create a "complete protein" or a protein that can be assimilated into the human body as tissue, you must consume foods that contain complementary chains of amino acids.

Wheat, nuts, and beans are three types of vegan-friendly incomplete proteins; however, wheat is hard to digest and up to 50% of its protein is lost during the process.

Isolated soy protein, which you can get from a number of sources (including soy milk), can be digested efficiently-enough to match the animal protein yields.

2. Iron. Plant sources contain a significant amount of iron, but in nonheme form, which is more sensitive to inhibitors than iron that comes from animal products. You should do two things to increase your blood-iron levels: 1) consume more plant iron; and 2) avoid absorption inhibitors, such as tea, coffee, and fiber.

3. Zinc. Whereas non-vegetarian diets seem to enhance the absorption of zinc; vegetarian and vegan diets do the exact opposite--they inhibit it.

Nutritionists suggest that you can overcome this by consuming more foods that contain zinc, such as soybeans, cashews, and sunflower seeds while reducing your intake of inhibitors by washing vegetables and grains.

4. Calcium. While vegetarians can easily consume an adequate amount of calcium without any dietary additions, it is important that vegetarians avoid consuming certain foods that are high in oxalates, which inhibit calcium absorption.

Dietitians suggest that vegetarians do not consume spinach, beet greens, and swiss chard as the calcium component of a meal plan. While they are rich in calcium, they also contain high amounts of oxalates.

Rather than consuming those foods for calcium, vegetarians should consider other options, such as soy yogurt, tofu, beans, almonds, and calcium-fortified foods.

5. Vitamin B-12. Many vegetarians lack vitamin B-12 simply because it does not exist naturally in any non-animal forms. Vegetarians should seek out vitamin B-12 fortified foods, such as certain soy milks and cereals to supplement what they lack.

As I outlined, there are a number of nutrients vegetarians can lack of they do not research and plan. This is not meant to discourage people from becoming vegetarians, but instead to encourage them to spend time planning a health approach to their vegetarian diet before starting it.

When planned adequately, a vegetarian diet can not only make up for what it lacks from animal products, but it can far exceed the healthfulness of most non-vegetarian diets.