Wednesday 19 August 2015

The importance of Iodine in Diet

Evidenced–based medicine has shown that not having enough iodine in one’s diet can be detrimental to one’s health.

11% of the US population is classified to be iodine deficient. Despite the availability of supplementation, simple supplementation may not be enough to resolve this problem.

The intake of iodine has significantly dropped between 1974 and 1991. During the period 1974-1982, the average daily intake of iodine for2 year olds was approximately 621ug. From 1982- 1991, there has been a drop of 248ug in the average daily intake.

Contributing factors include:

  • Post - 1982, the baking industry limited its use of iodine based caking agents and used bromide based agents as an alternative
  • Most processed foods do not now use iodised salt
  • Reduction in levels of iodine in milk because of changes in treatment methods
  • Reduced use of salt in cooking and iodised table salt
  • Fluoridation of water

A diet lacking in iodine can lead to iodine deficiency disorders (IDDs). IDDs can lead to:

  • Goter
  • Mental imbalances e.g. depression, anxiety
  • Mental retardation (in extreme cases, and particular in children of mothers who have had an iodine deficiency)
  • Fetal hypothyroidism
  • Autism
  • Slow brain function
  • Slow metabolism
  • Lowered immune function
  • Fibrocystic breast disease

See part 2 on how to get enough iodine into your diet !

Tuesday 4 August 2015

L-theanine Supplementation

L- theanine is a supplement which is a commonly advocated as food and nutrition advice.

But what is it?

Is it useful remedy?

L-Theanine is an amino acid that is not categorised in either the common essential or common non-essential amino acids. This amino acid is a non-dietary amino acid that also has similar characteristics to L-Ornithine or L-Citrulline. In addition, L-theanine is similar structurally to glutamine, GABA and glutamate. Clinical research studies on 2 healthy male volunteers have shown that L-theanine supplementation promote the release of alpha waves related to mental relaxation and concentration.

Research has further revealed that L-theanine:

  • has relaxation properties
  • improves attention
  • relieves stress
  • non- sedative

Such properties make it have a significant supplement in reducing the effect of several stimulants. When combined with caffeine, the addition promotes cognition and attention. Other research has suggested L-Theanine aids healthy sleeping, however it is not recommended to be used as a first line treatment.

L-Theanine itself can be an effective supplement that can be formulated in an ‘Integrative healthcare solution’. However, L-Theanine can also be consumed by drinking green tea which is commonly advocated as healthy food and nutrition advice. Green tea is the only natural food form of L-Theanine. Moreover, ingestion of green and black tea also has significant health benefits including benefits to cardiovascular and cognitive benefits.

So if you do suffer from acute insomnia, L-theanine can be a useful integrative healthcare solution, especially when consumed in the form of green tea.