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pdfcrowd.com open in browser PRO version Are you a developer? Try out the HTML to PDF API The Secret Of How Nutrition Shapes Your Genes by Dr Steven Lin | Aug 21, 2015 | Health | 0 comments Search … a

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Honeybees are well known for the way they treat their ‘royalty’; a queen bee enjoys a life of being fed,

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washed and escorted everywhere she goes. However, unlike human royalty, the queen bee hasn’t wonthe genetic lottery. Her life of being tended to by loyal and devoted minions is a fascinating exampleof the role that nutrition may play in our health and development.

For some it may be hard to embrace the fact that Prince Harry was born into a luxury, wealth andstatus filled life, purely due to who his parents are. For most mankind, hereditary has been a key basisfor selecting our royal leaders. That’s not the American tradition of course nor the case across theanimal kingdom.

Food fit for a queen

The life destiny of a bee turns out to be dictated by how it is fed in its first days after birth. Until thethird day, all larvae are fed the same ‘royal jelly’ secreted from the heads of nurse bees. After thatinitial period, the majority are switched to a feed of pollen and nectar. For reasons unknown, aselected number of bees continue to receive the royal jelly. Here, royalty is handpicked, with the luckyfew growing into the much larger and sexually promiscuous queen bees.

As scientists have found, the prolonged exposure to royal jelly sets off a cascade of hormones from aliver-like organ that leads to the development of the reproductive system in the larvae. The DNA of afledgling queen bee, is ‘switched on’ by the sustained presence of royal jelly. This process does notalter the DNA code itself, but acts via ‘tagging’ or methylation of the DNA helix, which is the addition ofsmall carbon groups to outside of the molecule, referred to as ‘epigentic’ changes.

How diet changes your genes

The classical understanding of genetics is that our DNA being is set in concrete from birth. We now

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know that’s too simplistic. Similar to honeybees, humans have a variety of tagging mechanisms thatallow our genes to exist in fluid communication with the outside environment, of which food is a majorcontributor.

Breastmilk: Dynamic message system

Humans, like honeybees, receive early dietary messages through breast milk and this may continuethrough every meal in our lives. As mammals, our nutritional messaging system is far more complexthan found in honeybees. Various bioactive components, such as polyunsaturated fatty acids, act to‘tag’ DNA which may assist in switching on complex gene expression linked to crucial earlydevelopment.

With current recommendations suggesting to breastfeed for 4-6 months, breast milk has been foundto shift in composition over this period in what may trigger various early genetic expression in a child.Interestingly, these changes do not involve basic nutritional elements such as fat, protein andcarbohydrates. Instead they affect far more complex, bioactive components such as bacterialpopulations and immunological cells – both factors that extend far beyond the commonunderstanding of nutrition constituting our dietary guidelines and recommendations.

At the very beginning of our lives, we receive an intricate epigenetic message from our mother thatseems to influence life-long health outcomes. Research has linked this to better brain and immunedevelopment. Beyond childhood, these benefits extend to the lowered risk of communicable and non-communicable diseases like obesity.

Food for thought

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Although our eating habits may not deliver us the life of a queen bee, our genes are interacting withfood in ways we’re only beginning to understand. Although breastfeeding dictates crucialdevelopmental stages, dietary habits play a key role in health with every meal representing adiscussion with your genetic material.

Whilst there is much to learn, our new understanding of epigenetics shows how our body is designedto listen and adapt to environmental signals. Hence, every bite counts and you literally are what youeat.

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