Monday, May 27, 2013

Essential nutrients for your diet


Essential nutrients are called all the nutrients needed for the normal function of our bodies that either can not be synthesized, or are made in small quantities in our bodies.  We need these nutrients in the right amounts at the right time, if we want to live a healthy life. 


Essential nutrients are divided in four big categories: 
  1. Vitamins,
  2. Dietary minerals,
  3. Essential fatty acids,
  4. Essential Amino acids.
Before entering in details on our needs for each class of nutrients, let's start with a brief explanation.

Vitamins
Vitamins can not be synthesized in our bodies, but they play a very important role in our metabolism. Without them we can not function, because of their role as enzymes and co-enzymes in chemical reactions,  and in the removal of free radicals from the cells. 

Without vitamins, chemical reactions in our body, can not happen. In other words, if the cell needs 'X' molecule, let's say, it gets this molecule, by combining A+B= X, with the help of enzymes. These enzymes work only if the specified vitamin exists. So, if low quantities of the needed vitamin are found in our body, then our organism can not satisfy its need with X molecules. The absence of these X molecules can even cause a disease or an unhealthy condition in our bodies.

The vitamins are never needed in big quantities, they are needed in small amounts at all times. Especially when we get sick, we need more of them, since our metabolism increases its rhythm, when fighting a disease or an infection. 

Dietary minerals

Dietary minerals, or mineral nutrients are the chemical elements required by all living species, other than the four elements carbon, hydrogen, nitrogen, and oxygen present in common organic molecules.

Minerals, in order of abundance in the human body include the seven major minerals calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium. Important "trace" or minor minerals, necessary for our life, include iron, cobalt, copper, zinc, molybdenum, iodine, and selenium. For more information on this topic, you can read my other post entitled 'Elements of nutrition, indispensable for you', if you haven't already. 

Essential fatty acids


Essential fatty acids, or EFAs, are fatty acids that humans and other animals must eat, because the body requires them for good health but can not synthesize them. The term "essential fatty acid" refers to fatty acids required for biological processes but does not include the fats that only act as fuel. So, do not use this as an excuse to eat at MC Donald's... ;)

Only two fatty acids are known to be essential for humans: alpha-linolenic acid (an omega-3 fatty acid) and linoleic acid (an omega-6 fatty acid)

Essential Amino acids


An essential amino acid or indispensable amino acid is an amino acid that cannot be synthesized from scratch by our organism and therefore must be supplied in the diet.

Daily requirements

The amino acids regarded as essential for humans are phenylalanine, valine, threonine, tryptophan, isoleucine, methionine, leucine, lysine, and histidine. Additionally, cysteine (or sulphur-containing amino acids), tyrosine (or aromatic amino acids), and arginine are required by infants and growing children.

Stay healthy!

Saturday, May 25, 2013

Anemia, causes and symptoms

Anemia is linked with iron and specific protein deficiencies. Broccoli is full of these nutrients, so it forms an excellent choice for anemia treatment through food. The components of broccoli are carbohydrates, fatty acids such as omega-3, proteins, A vitamin, B complex, C and E vitamin, beta-carotene, calcium, iron, magnesium, phosphorus, chrome, potassium, manganese, water, fiber etc. 


According to statistics one in five people on earth, is suffering from anemia. The first anemia symptoms are the feeling of tiredness, fatigue, pale skin, a fast or irregular heartbeat,shortness of breath, chest pain, dizziness, cognitive problems, cold hands and feet, headache and similar. Firstly anemia can be so mild that it goes unnoticed. But symptoms increase as anemia worsens and the iron deficiency aggravates.

Since iron enters our body through food it is very important to eat regularly iron enriched foods, such as liver, red meat, mussels, ton fish, mushrooms, dried fruits, egg yolk, green vegetables etc. The absorption of iron increases with consumption of vitamin C, but the consumption of calcium decrease iron uptake by the body, so be careful about that.

It is very important to consult your doctor, if you think you have anemia. This disease is discovered by doing a blood test and a physical exam. The doctor then may give you iron medicine with some B complex vitamins, or similar,depending on how advanced is the stage of anemia you have. Sometimes even blood transfusions may be necessary.

If you have anemia, it means that your blood does not carry enough oxygen to the rest of your body. As I mentioned earlier, the most common cause of anemia is not having enough iron. Your body needs iron to make hemoglobin, which is an iron-rich protein that gives the red color to blood. It carries oxygen from the lungs to the rest of the body.

Anemia has three main causes, known to be:
  • blood loss, 
  • lack of red blood cell production, 
  • high rates of red blood cell destruction.
Conditions that may lead to anemia include heavy menstrual periods, ulcers, colon polyps, pregnancy, colon cancer, inherited disorders, a poor diet in iron, folic acid or B12 vitamins deficiency, blood disorders such as sickle cell anemia and thalassemia, or even cancer.

How much calcium should you consume daily?

The recommended daily dose of calcium is 700 milligrams in both women and men. Translated in the food language this means:

2 glasses of milk or,

2 cups of yogurt or,

approximately 80 grams of cheese.


The good news is that you don't have to eat greasy foods, to get calcium. The same amount of calcium is found either in the skimmed milk, or the natural one. This is the same, taking into consideration all the dairy products.

Some of the top calcium-rich foods are:

1. Cheese
2. Yogurt
3. Milk
4. Sardines
5. Dark leafy greens like spinach, kale, turnips, and collard greens
6. Fortified cereals such as Total, Raisin Bran, Corn Flakes (They have a lot of calcium in one serving.)
7. Fortified orange juice
8. Soybeans
9. Fortified soymilk (Not all soymilk is a good source of calcium, so it's best to check the label.)
10. Enriched breads, grains, and waffles

Food is always the best source for calcium. Calcium is a key nutrient for your body to stay strong and healthy. It is an essential building block for lifelong bone health in both men and women, among many other important functions. Everyone can benefit from eating calcium-rich foods, limiting foods that deplete calcium, and getting enough magnesium and vitamins D and K, that help calcium to do its job.
Related Posts Plugin for WordPress, Blogger...