All about Iodine

Todays post is all about Iodine as requested by a friend.

This subject is also of particular interest to me as I do have a thyroid disorder. So getting my daily source of Iodine is quite important.

 First of all, what is Iodine?

According to Wikipedia, Iodine is a chemical element first discovered by the French chemist Bernard Courtois in 1811.

It is a naturally occurring chemical element, like oxygen and iron. It is the heaviest of the essential mineral nutrients and it is also the least abundant.

It is present in fairly constant amounts in seawater, but its distribution over land and fresh water is uneven. In continents such as Australia and New Zealand, natural iodine levels are very low in the soils where we grow our vegetables, grains and graze livestock.

 Why is it essential?

Iodine is an essential element for life. It is required for the synthesis of the growth-regulating thyroid hormones thyroxine and triiodothyronine (T4 and T3 respectively). Thyroid hormones are required for normal growth and development of tissues and maturation of our bodies.

Globally, it is estimated that 2 billion individuals have an insufficient iodine intake. In industrialised countries, including the United States, Australia and New Zealand much of the food supply is now low in iodine. This has led to widespread deficiency.

Iodine deficiency has multiple adverse effects in humans. It is  the commonest worldwide cause of thyroid disorders.  A low iodine diet can cause hypothyroidism, an enlarged thyroid gland (goitre) and can affect fertility, pregnancy and neuro-developmental disorders in newborns. It is the leading preventable cause of intellectual disabilities.

How to get your daily intake

Some of the best sources of iodine include seafood, iodised salt and bread. The iodine content of plants and vegetables is dependent on the environment and soil in which they are grown.

Marine sources –

Seaweed, fish and shellfish are the best sources.

Seaweed is an excellent source of iodine. However, the amount can vary significantly based on seaweed type, the region in which it grew and its preparation.

Three popular seaweed varieties include kombu kelp, wakame and nori. Kombu kelp offers the highest amount of iodine.

Higher amounts of iodine are found in fish low in fat compared to fatty fish. For instance, a lean fish like cod can provide up to 66% of the daily value. Tuna offers less iodine than lean fish but is still a relatively good source.

Shrimp and other shellfish are good sources  because they absorb some of the iodine that is naturally present in seawater.

Two to three servings of seafood a week should provide sufficient iodine to meet the requirements of most people.

Salt –

In Australia, any salt used at home should be iodised salt (that is, salt to which iodine has been added).

Bread –

Food Standards Australia New Zealand (FSANZ) implemented a mandatory iodine fortification regulation in October 2009. Since then, Australian bakers are required to replace regular salt with iodised salt in the baking of bread. This regulation does not include organic bread and breads made from non-wheat flour.

Eggs –

Egg yolks are a good source of because it is added to chicken feed. On average, one large egg contains 24 mcg of iodine, or 16% of the daily value.

and lastly prunes –

Interestingly, prunes are a good source of iodine. Five dried prunes provide 13 mcg, or about 9% of the daily value.

I hope that you have also found this information interesting and that it will help you to improve your Iodine intake.

Till the next post,

Live clean n Prosper.

Sources – https://academic.oup.com, www.sciencedirect.com, http://www.foodstandards.gov.au, http://www.nutritionaustralia.org, www.thyroidfoundation.org.au

All about Magnesium

Todays post is all about Magnesium. I recently read a small article on foods rich in magnesium and how this mineral plays a part in controlling blood sugar. This was news to me, so I decided to do a bit of research into this essential macro mineral.

What is Magnesium?

Wikipedia states that Magnesium is an alkaline earth metal and the eighth most abundant element in the Earth’s crust. It’s also abundant in seawater due to its high solubility. Magnesium is also the 11th most abundant element by mass in the human body.

Why is it important?

Magnesium is necessary for more than 300 chemical reactions in the human body and is used by almost every cell. It’s needed for healthy bones, heart, muscles, and nerves and helps your body control energy, blood sugar, blood pressure, and many other processes.

An adult body contains approximately 25 g magnesium, with 50% to 60% present in the bones and most of the rest in soft tissues. It is absorbed through the bowel and stored mainly in bone and soft tissue.

How our body uses it.

Calcium and magnesium work together in maintaining bone health and preventing osteoporosis. Magnesium is important for bone formation. It helps assimilate calcium into the bone and plays a role in activating vitamin D in the kidneys.

Magnesium plays an important role in carbohydrate and glucose metabolism. Several studies have associated a higher intake with a lower risk of diabetes. It is also necessary to maintain the health of muscles, including the heart, and for the transmission of electrical signals in the body.

Studies have also shown that magnesium can help with migraine headaches, PMS and anxiety. If you were basically healthy, you probably wouldn’t have symptoms from low magnesium unless it went on for a long time. Low levels have been linked to health issues like Crohn’s disease, celiac disease, or insulin resistance. 

Lifestyle choices can also lead to low levels, such as poor diet, gastrointestinal problems, or vitamin D deficiency. Some symptoms of magnesium deficiency include tingly fingers and toes, flu like symptoms, cramping muscles, irregular heart rate, mood changes and constipation.

Getting your daily dose

Magnesium is one of seven essential macro minerals that need to be consumed in relatively large amounts, at least 100 milligrams (mg) per day. The best way to ensure you are getting your daily dose is from food.

Latest research regarding magnesium absorption from gels and creams on the skin is inconclusive. The best sources of magnesium are pumpkin and sunflower seeds, spinach, Swiss chard and other leafy greens, black beans, quinoa and cashews.

Studies have revealed that when the foods are cooked for any length of time the mineral content is significantly less. All the more reason to eat fresh unprocessed vegetables, nuts and seeds as much as possible.

I hope that you found this information as interesting as I have, I wasn’t aware that magnesium played such a big role in our bodily functions.          Sources – (National Institutes of Health – Health Direct –  Medical News Today 

Till the next post,   

Live clean n Prosper.