Our
digestive effort must be greater with raw meat. Also, the fact that no
heat denaturation has taken place probably means that more
polypeptides, rather then simple amino acids, will be transported to the liver, which then must further digest them, because certain polypeptides are not welcomed in the blood. Both liver and blood contain many enzymes which remove polypeptides rather fast, but that means that when we eat raw meat the liver must work harder.
RAW EGG WHITE - HARMFUL OR NOT
Biotin is an essential water soluble vitamin which can be rendered unavailable by egg white ! Many clinical nutrition books discuss biotin (one of the water soluble vitamin B complex) as being an essential nutrient which can be bound by avidin, which is found in raw egg white. This binding prevents it's absorption from the gastrointestinal tract. Fortunately cooking deactivates this effect of avidin, and egg yolk is so high in biotin content that biotin deficiency does not occur when whole raw eggs are fed. So, whilst biotin deficiency is a potential problem - in reality it is unlikely to be seen in domesticated animals unless they are fed an extremely imbalanced ration that is predominantly egg white.
On the positive side - raw chicken egg white does of course have some nutritional value and contains the following :
- 88.3% water
- 9% protein
- Trace of fat
- Trace of carbohydrate
- Minerals -
- Sodium - 190mg/100g
- Chlorine - 170mg/100g
- Potassium - 150mg/100g
- Phosphorus - 33mg/100g
- Magnesium - 11mg/100g
- Calcium - 5mg/100g
- Vitamins and vitamin precursors
- Tryptophan (an amino acid and niacin precursor in dogs and other species but not cats, mink or fish) - 2.6 mg/100g
- Riboflavin - 0.43 mg/100g
- Pantothenate 0.3 mg/100g
- Folate - 13 mg/100g
- Biotin - 7 mg/100g
- Vitamin C - 0
- Vitamin D -0
- Vitamin E - 0
- No dietary fibre
- 36 kcal energy per 100g
Rex