Sunday 16 December 2012

Eggs, the perfect protein


The egg is regarded as having the perfect protein.  It is the one against which all other proteins are measured.”

(Billinghurst 1993)  A raw egg including the egg shell contains all necessary minerals, high levels of calcium (from yolk and shell), vitamins (except for Vitamin C), fatty acids, lecithin and enzymes.

When comparing different foods in regards to the highest number of amino acids, egg whites are the most complete protein followed by muscle meat, organ meat, milk, cheese and fish.  Egg whites alone contain iron, magnesium, phosphorus, potassium, zinc, A, B, and E vitamins.  Diets that need to be high in protein and low in fat should indeed contain regular sources of eggs, yoghurt and cottage cheese.  (Olson 2010)

When looking at the nutritional composition of whole eggs, the minerals include  iodine, manganese, selenium, sodium and sulphur (Shultze 1999)

Author of, ‘Whole Health for Happy Cats,’ recommends a simple recipe for cats which contains whole eggs (including the shells for calcium).

Baked Salmon Cookies for Cats
225g salmon or mackerel
55g catnip or wheatgrass
1 ground egg shell
3 whole beaten eggs
55g ground pumpkin or sesame seeds
562g rice flour or quinoa or amaranth
After combining, the dough should be cut into 5mm thick cookies and baked at 190 C for 20 minutes.

Another idea for a high protein dog snack is a freshly beaten egg with a heaped tablespoon of plain yoghurt. (Brown 2006)  Whilst Billinghurst suggests combining vegetables with a raw egg and some brewers yeast powder.

In regards to the eggshell, one eggshell contains approximately 2000mg of calcium and 80mg of phosphorus.  Author of ‘Whole Health for Happy Cats,’ does however advise against feeding raw eggs due to the ‘avidin’ the egg whites contain.  Avidin binds to the B vitamin ‘biotin,’ contained in the egg yolk.  Once bound together these B vitamins are rendered useless.  If raw eggs are fed occasionally it is no problem.  However, on a regular basis, raw egg yolk should be given with egg whites cooked separately. (Arora 2006) 
According to Billinghurst, raw eggs are not a problem.  Wild dogs have been raiding birds nests long before commercial dog food was invented, with no biotin deficiencies.  Raw whole eggs fed in a mixed, varied diet are excellent nutrition.  Like Arora, Billinghurst suggests the egg whites can be cooked separately if there is concern in regards to biotin deficiency.  Additionally if a dog is sick, has an allergy to eggs, or is very old with pancreatic problems, they may have problems digesting the egg white due to an ‘enzyme inhibitor.’  (Billinghurst 1993)  Biotin is found in foods such as carrots, milk, yoghurt, berries, bananas and sweet potato.

On a more ethical note, eggs should always be free range (Brown 2006).  One egg from a caged bird is produced from 30 hours of pain, stood on wired mesh and in less space than an A4 sized piece of paper. 

Whilst eggs remain high in priority when supplementing a high quality protein into the diet, author of  ‘Natural Nutrition for Cats and Dogs,’ reminds us that there is one life nutrient which assists every biochemical activity in the body.  This essential ingredient is ‘love.’  (Shultze 1999)
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References:
Arora, S 2006, ‘Whole Health for Happy Cats.’ Quarry Books USA
Billinghurst, I 1993, ‘Give your dog a bone,’ Warragul Publishing, Australia.
Goldstein, R.S. V.M.D. & Goldstein, S.J. 2005, ‘The Goldstein’s Wellness & Longevity Program Natural Care for Cats and Dogs.’ TFH Publications USA.
Brown, A 2006, ‘The Whole Pet Diet, Eight weeks to a Great Health for Dogs and Cats. Celestial Arts, USA.
Coscia, J. A, 2005, ‘The Holistic Cat, A Complete Guide to Wellness for a Healthier, Happier Cat. North Atlantic Books, USA.
Olson, L 2010, ‘Raw & Natural Nutrition for Dogs, The definitive guide to homemade meals.’ North Atlantic Books, USA.
Puotinen, C.J. 1999, ‘Natural Remedies for Dogs and Cats.’ Keats Publishing, USA.
Schenck, P. 2010, ‘Home Prepared Dog and Cat Diets Second Edition.’ Blackwell Publishing, USA.
Schultze, K.R. 1998, ‘Natural Nutrition for Cats and Dogs, The Ultimate Diet.’ Hay House, USA.

Internet website references:
Animals Australia, The Voice for Animals. Special Feature, ‘What you never knew about dairy.

Animals Australia, The Voice for Animals. Article on ‘Battery Hens.’

Animals Liberation Website, Queensland, Australia. Article, ‘Dairy Cattle.’ 2004.

ASPCA We Are Their Voice, Animal Rescue.  Article on, People Foods to Avoid Feeding Your Pets.’

Mercola.com Take Control of your Health. Article, ‘Who knew this cocktail of up to 20 Chemicals was in your glass of milk?’ 26 July 2011

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