Wednesday, May 29, 2013

Top foods for thyroid health


The thyroid gland is one of the most important glands in the human body. It controls the way you metabolize food, the way you use energy, lose and gain weight, how well or poorly you sleep, and much, much more.

It is well known, but worth mentioning that your thyroid simply can’t function without iodine, and if you are iodine-deficient, higher iodine intake could make all the difference for your thyroid. 

Selenium is another indispensable element to healthy thyroid function. An array of selenium-based proteins and enzymes help to regulate thyroid hormone synthesis and metabolism and to maintain just the right amount of thyroid hormones in the blood and tissues, including the liver, kidneys, and thyroid gland, as well as the brain. Selenium-containing enzymes also function as a protective “detox”, preserving the integrity of the thyroid gland when we’re under all kinds of stress.

Zinc, iron, and copper play vital roles in healthy thyroid function as well. Check their levels for a healthy thyroid gland's function. 

In hyperthyroidism, oxidative stress can be particularly high. This happens because the thyroid is more active, and it is using more oxygen, which leads to an accumulation of oxygenated compounds that can harm your cells. 


This is why antioxidants are recommended, especially in hyperthyroidism. The B vitamins (B2, B3, and B6) are also important for thyroid function because they are involved in manufacturing T4.

Foods that support your thyroid gland's health:

IodinePrimary sources: sea vegetables, and seafood, as well as iodized sea salt.
Secondary sources: eggs, asparagus, mushrooms, spinach, sesame seeds, beans, garlic
SeleniumBrazil nuts, tuna, organ meats, mushrooms, beef, sunflower seeds
ZincFresh oysters, sardines, beef, lamb, turkey, soybeans, whole grains, sunflower seeds, Brazil nuts, almonds, walnuts, ginger root, maple syrup
CopperBeef, oysters, lobster, dark chocolate, tomato paste, nuts, beans (soybeans, white beans, chickpeas), sunflower seeds
IronClams, oysters, organ meats, soybeans, pumpkin seeds, white beans, blackstrap molasses, lentils, spinach
Vitamin A
(beta-carotene form)
Sweet potatoes, carrots, pumpkin, spinach, broccoli, asparagus, liver, lettuce
Vitamin CPeppers, kiwifruit, citrus, strawberries, broccoli, cauliflower, Brussels sprouts, papaya, parsley, greens
Vitamin EWhole grains, almonds, soybeans and other beans, sunflower seeds, peanuts, liver, leafy green vegetables, asparagus
Vitamin B2
(riboflavin)
Almonds, mushrooms, egg yolks
Vitamin B3
(niacin)
Rice bran, wheat bran, peanuts (with skin), liver, poultry white meat
Vitamin B6
(pyroxidine)
Sunflower seeds, wheat germ, fish, liver, beans, walnuts, brown rice, bananas

Stay well! 

How much protein is good for your heart?



When we think protein, the first food that comes into our minds is meat, but we tend to forget that along with proteins meat is full of fats. This can increase the levels of LDL, or known as the 'bad cholesterol' in our bodies, resulting in heart problems...

So, remember that meat is not always the best source of proteins for us...Try to choose low-fat foods with high levels of proteins such as skim milk and lean meat. You can even substitute lean meat with legumes, a cup of legumes gives you about 16 grams of proteins. When making a plate, it is best to combine meat with vegetables,  so you will be getting proteins from different food groups.

The daily recommended doze of proteins required by your body is in short known as RDA or recommended daily allowance and to calculate that, you will have to take into account your weight and age.

There are some special categories that require more proteins than normal. Pregnant women require 10 grams more protein than the amount they consumed before. Lactating women require 20 grams more than their usual consumption in order to support milk production. Athletes require 50% more proteins in comparison with normal people.


Stay healthy! 

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!
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