Showing posts with label zinc. Show all posts
Showing posts with label zinc. Show all posts

Thursday, 14 August 2014

Pesky Cravings... just might be good for you!

Many consider that irresistible urge for chocolate or bread with butter slathered on to be the bane of anyone trying to maintain a healthy eating regime.  However, those sudden cravings for certain foods that have nothing to do with hunger could be your body trying to tell you something!

When I meet a patient for the first appointment, I ask them a LOT of questions.  Many of those questions are about what they LIKE to eat and what they don't like.  Also if there are foods they simply "can't live without", I put that in inverted commas as even though it may seem impossible for you to live without say... chocolate, I assure you it IS possible.  The reasoning behind these questions is simple, many foods that people think they can't live without and crave on a regular basis and will even go out of their way to eat is their bodies' way of telling them that there is something in that particular food that their bodies need and must have.  Usually this is down to a deficiency in certain nutrients.

For example:  Do you crave chocolate? (I know I do).  Well this common craving could be down to a lack of magnesium in some people.  Chocolate is rich in magnesium which is a mineral that is vital for skin and hair.  Women also crave chocolate as their magnesium levels tend to drop during the second half of the menstrual cycle, which also suggests a possible link with many of the usual symptoms of PMS.  There are other reasons for a lack of magnesium in the body, for example, drinking too much tea, coffee and carbonated drinks can lower magnesium levels.

The solution?  Well if the only thing that will do it for you is chocolate then stick to the dark stuff and preferable a minimum of 75% cocoa as this will have a higher magnesium content and less sugar.  However, nuts, particularly Brazil nuts are a richer source, leafy greens, brown rice, wholemeal bread and pumpkin seeds are also good.

If you suffer from PMS try taking a Vitamin B complex supplement with a magnesium supplement every day.

Is Ice a necessity for you?  Yes, believe it or not there are people out there that crave ice.  It is not know exactly why, but craving ice could be due to lack of iron in the body.  If you do crave ice and suffer from lack of energy you should see your doctor as you may be anaemic.  The amount of iron in our diets has decreased due to people eating less healthily and relying on processed foods.

The solution?  Red meat is an optimal source of iron as it is readily absorbed by the body.  Other sources are wholemeal bread, figs, apricots, spinach, broccoli and lentils.  However, if you are trying to increase your intake of iron through plant based foods, then you should also eat Kiwis, oranges and tomatoes as the vitamin C in them helps the body to absorb the iron.  So if you eat a spinach salad, make sure it has tomato in it too - for example.

If you would prefer and your doctor recommends it, you can take iron supplements - Solgar Gentle Iron is one that I prefer as it is less likely to cause constipation, but remember to take it with a kiwi or an orange for better absorption.

Do you go out of your way for a hunk of meat?  Craving meat can also be a sign of iron deficiency but it can also mean you are low on zinc.  Zinc is important to immune function, among other things, so when your levels are depleted you will be more susceptible to colds and flu.

The solution?  Red meat is a great source as well as lentils, shellfish, spinach, pumpkin seeds, cheese and wholemeal bread.  I always keep some zinc tablets at home and when I feel the typical first symptoms of a cold coming on I take them for a few days and they chase the cold away.

It has to be sweets?  I'm not a sweet eater... for me it has to be chocolate, but I did have a patient who suffered from anxiety and she ate sweets constantly.  Craving sweets could be a sign of chromium deficiency.  Chromium works with insulin to aid the uptake of glucose from the blood into the cells.  Reaching for sweets when you feel low on sugar can actually make the problem worse as it causes the body to produce insulin which leads to a sugar crash, making the cravings even worse.

The solution?  Eat plenty of liver, chicken, beef, kidney, carrots, potatoes, broccoli, asparagus, whole grains and eggs.

Just can't get enough cheese?    Craving cheese can be a real tell tale sign of a lack of tryptophan.
 Tryptophan is one of the 20 essential amino acids that our bodies need but can not produce themselves.  We need to get these amino acids from our food.  Tryptophan is needed to help the body synthesize serotonin  or the happy hormone.  A lack of tryptophan can lead to low mood, anxiety and sleep problems.

The solution?  The best foods for their tryptophan content are eggs and cheese, so if you're feeling low a cheese omelette might be just the thing for you.  Other good sources of tryptophan are turkey, cashews, walnuts, and bananas.


I can help you improve your health.  If you would like to make an appointment with me either in person or via Skype, just send me an email to lucycarr@socialnutrition.com 

Thursday, 4 July 2013

Just what is your body trying to tell you?

Not enough of us actually listen to our bodies.  Sometimes we experiment cravings for certain foods such as cheese or red meat.  Our bodies are far wiser than we are.  We, after all, are conditioned from the amount of advertising we see on a daily basis to crave sugar, fast food, etc..  But sometimes we suddenly get a craving for a specific food like cheese.  Cheese is high in an essential amino acid called tryptophan which is a precursor to Serotonin, also known as the happy hormone.  If you aren't getting enough tryptophan you may have a problem producing enough Serotonin.

However, there are other little "everyday" minor health problems that annoy us which could simply be our bodies trying to make us aware that there is a nutritional deficit which is not being met and could be easily remedied.

For example:

Swollen ankles.  This could be a sign that you are not getting enough potassium in your diet.  Potassium helps regulate the body's water balance and a low potassium count can contribute to water retention that, in turn, causes blood pressure to rise - this happens especially when combined with too much dietary salt.

The Dallas Heart Study in the U.S. examined data from 3,300 people which showed that the amount of potassium in urine samples, and therefore reflecting dietary intake, was strongly related to blood pressure readings.  Almost a quarter of all women and teenagers and 16% of people over 65 years of age have low intakes of potassium as a result of their diet, as found by the National Diet and Nutrition Survey data.

The recommended daily allowance of Potassium is 3,500mg.  Bananas are naturally high in potassium, and if you are getting your 5 a day of fruit and vegetables should stop you being deficient.

Those annoying and painful cracks at the side of the mouth could be attributed to a lack of vitamin B2, this also goes for fissures and sores around the mouth.  Vitamin B2 is essential for cell production and growth, without it, the body cannot renew skin and mucosal cells around the lips.  Vitamin B2 is also necessary for converting food into energy, so if you also suffer from fatigue and migraines it may well be a B2 deficiency that is provoking them.

The recommended daily allowance of Vitamin B2 is 1.3mg for men and 1.1mg for women.  Although I am not an advocate for milk and/ or milk produce, a daily glass of 250ml of milk should solve a deficiency.  I, personally, would take a supplement.

Are you constantly in a bad mood?  Grumpy all the time?  Then you could have an iron deficiency.  The usual symptoms of iron deficiency are pale skin, spoon-shaped nails and light-headedness, however, feeling grumpy together with tiredness and poor concentration, is an early warning sign for lack of iron due to reduced levels of oxygen reaching the brain - as stated by the U.S. National Library of Medicine.

Iron is an important component of red blood cells which allows them to collect oxygen and transport it around the body.  As much as 30% of teenage girls and 17% of women suffer from low iron counts, and the risk is even higher in women who have heavy periods.

The recommended daily allowance for iron is 8.7mg in men and 14.8mg in women.  Red meat, nuts and greens are packed with iron, the easiest to absorb come from animal sources such as beef, eggs and sardines.  However nuts, pulses, green leafy vegetables are also a good source, however you must accompany them with a source of Vitamin C such as fresh tomato with the skin left on or natural orange.  For a more severe deficiency supplements will be needed but you should see your doctor before taking supplements.

Has food become bland and unappetizing?  It might not just be your cooking (or your Mum's!).
Inadequate levels of zinc in the body can affect our sense of taste.  The University of Ulster  conducted a study on 387 participants and found that those participants with lower levels of zinc in their blood cells were less able to detect salty tastes.

Zinc is required for the production of salivary enzymes and development and maintenance of tastebuds which may point to the relationship between the lack of zinc and debilitated taste - although this is still unclear.

But a low zinc level does not just affect your tastebuds, other signs of zinc deficiency include more frequent infections such as colds and flu, wounds that take a long time to heal - this is due to the zinc's vital role in immune system function and the repair and renewal of cells.

Teenagers are most at risk, nearly one fifth of girls and a tenth of boys have been found to have unacceptable levels of zinc due to their diets.

The recommended daily allowance of zinc is 5.5 - 9.5 mg for men and 4-7mg for women.  Red meat - beef and lamb are among the best sources of zinc, so try to eat at least one to two portions a week.  Other sources include nuts, especially Cashews and Peanuts and other whole grains.

Those general aches and pains may not just be down to getting older!  Vitamin D is such an important part of a healthy body.  Weak bones are known symptoms of a long term Vitamin D deficiency but general aches, weakness and tiredness can also indicate a lesser deficiency.

Low Vitamin D levels occur across all age groups, this vitamin helps regulate calcium and phosphorous, minerales that are vital for developing and maintaining bone and muscle.  It is also thought that Vitamin D is important to the immune system and may boost cancer protection.

The recommended daily allowance is 5mcg (micro grams)  However it can be easier than that, 20 minutes of sunshine a day with no sunscreen on will keep your Vitamin D levels topped up, also you can eat two portions of oily fish such as salmon or sardines per week to prevent deficiency.

So, take a good look at your body, what is it trying to tell you?  Do you have any of the symptoms I've described?

Social Nutrition:
You can make an appointment to improve your health with Social Nutrition either in person (Madrid) or online (Skype).  Just send an email to lucycarr@socialnutrition.com