The sun is the same in a
relative way but you're older.
Shorter of breath and one day closer to
death.
"Time" - Pink Floyd
People have always
looked for the "Fountain of Youth" in different
venues which includes nutrition. In early civilizations,
people associated certain foods with certain medicinal,
pharmaceutical, aphrodisiac and euphoric attributes. While
modern science has dispelled many fallacies concerning certain
foods and health, it is proven that good nutrition is
necessary to sustain a long life with quality health. People
want the same for their pets. It's been accepted that meeting
just the basic nutritional needs of animals does not
necessarily mean that additional nutrition is not beneficial.
It's well recognized that the different environmental
conditions placed upon our pets in addition to the huge amount
of variation in genetics makes it impossible for one food to
be perfect for all pets in every situation.
Many people believe
that a long life with quality starts with a good geriatric
food. In contrast, it begins with the animal's first exposure
of food. Many times it is too late to correct problems in
older animals that could have been avoided with good nutrition
earlier. There are a number of nutrient functions that can be
addressed to keep animals healthy throughout their life.
The first thing any
food must do is help the animal maintain good body condition.
Excessive condition on any animal will cause problems which
are accentuated in a geriatric. Obesity alters metabolism of
an animal that can increase the incidence of diabetes and
other disorders. In addition, obesity can accentuate problems
with joints which limit the mobility of the animal.
Consequently, the animal's activity level is decreased making
it more difficult to expend energy which in turn makes it more
difficult for an animal to loss weight in order to attain
proper body condition. Research has shown that weight loss
diets may be more effective with protein levels greater than
those for maintenance foods. Fat levels should be adequate in
order to decrease the amount of starch which provides a more
favorable distribution of dietary energy in addition to
providing essential fatty acids that are necessary for vital
functions such as maintaining the immune system and sustaining
a healthy skin and hair coat. Animals consuming an
overabundance of carbohydrates have been shown to become
readily obese versus a balance between carbohydrates, fats and
protein. In addition, consumption of fats and proteins satiate
the animal's appetite to a much greater degree than
carbohydrates.
Key essential fatty
acids are characterize by their structure and designated as
omega 6 or omega 3. Both types of fatty acids must be in the
food and are critical to the health of any animal. Research
has shown that linoleic acid, an omega 6, enhances the
condition of hair coats in animals. The research on omega 3
fatty acids has proved interesting to say the least. Omega 3
fatty acids have been associated with suppressing inflammation
responses due to allergies and infection, improving learning
skills and inflammation attributed to joint disorders. Quality
foods with a respectable blend of these two types of fatty
acids will aid in keeping animals healthy that should lead to
a quality life in their geriatric years. Fish and flaxseed are
good sources of omega 3 fatty acids while poultry fat, corn
and sunflower oil are good sources of omega 6 fatty acids. Too
much of either of these fatty acids at the expense of the
other can cause problems. A high ratio of omega 6 to omega 3
fatty acids may lead to hypersensitivity of key elements of
the immune system while a low ration of omega 6 to omega 3
fatty acids may lead to suppression of key elements of the
immune system. In both situations, the immune system does not
function properly. The ideal ratio is difficult to define
because of influences from genetics, stage of life and
environment.
Fatty acids are not
the only category of nutrients that need to be properly
balanced. Minerals, vitamins and amino acids (proteins) all
must be delicately balanced in the food. An imbalance of
minerals can cause problems with bones, immune system, hair
coats, skin, blood, breeding and urinary function. Vitamin
imbalances can result in several problems including those
associated with breeding, skin and hair coats, blood, and
digestion. Amino acids imbalances due to poor protein sources
can result in problems related to growth, obesity, immune
system and behavior. A food with the proper blend of nutrients
is necessary for animals to obtain the optimal level of these
vital substances to sustain functions critical for a quality
life into the geriatric years. One of the easiest ways to
cause nutrient imbalances is to frivolously give treats or
supplements. In the world of nutrition, you can get too much
of a good thing. An iron supplement can result in anemia (or
make the anemic situation worse if that was the intention of
the supplement), discolored hair coats, skin disorders,
vaccine failures and breeding problems by causing a copper and
zinc deficiency. A more insidious source of iron is often
delivered to the animal by way of the drinking water. High
iron, calcium and sulfur in drinking water can cause mineral
imbalances. Foods with chelated sources of minerals offer to
the animal a more source of these nutrients that are highly
available compared to using all inorganic sources. Snacks with
poor protein sources can cause amino acid deficiencies as a
result of diluting the balanced protein that a dog obtains
from a complete food. Imbalanced amino acids or poor protein
sources results in poor hair coats, obesity and bone
disorders. Foods with more than one protein sources usually
provide a broader range of essential amino acids than those
using one protein source.
One of the
functions of nutrients is to control the numerous biological
reactions that drive the vital metabolic functions of the
animal. Metabolic reactions are not totally efficient. The
reactions are driven by moving pairs of electrons from place
to place. Occasionally, an electron becomes unpaired and ends
up in places where it can cause damage to tissues and cells.
These unpaired electrons are known as free radicals. Free
radicals are controlled by substances called antioxidants
(named because the damaging reaction caused by free radicals
is called oxidation). Antioxidants can be nutrients (vitamin E
or C) or have critical components made of nutrients (zinc,
copper, manganese, iron, selenium) or can be chemicals from
certain ingredients (flavonoids from blueberries and other
fruits, lycopene from tomatoes, lutein and b-carotene from
alfalfa). Certain aspects of life (gestation, parturition,
lactation), work and exercise, disease or infection or stress
causes metabolic reactions to produce more free radicals.
Consequently, the increase in the production of free radicals
necessitates an increase in the amount of antioxidants needed
in the food. Allowed to remain unchecked, elevated free
radicals causing oxidative damage has been associated with
several types of disorders late if the life of the animal.
These types of degenerative disorders related to joint
problems, cataracts, circulatory problems and even cancer.
Thus, a food must have a good source of antioxidants to enable
animals to be healthy in their geriatric years. Also, not one
antioxidant can handle all the different kinds of free
radicals. A broad array of antioxidants is the most effective
way to neutralize all the different types of free radicals.
The digestive tract
is an area of the body that generates and hosts countless
numbers of reactions. The digestive tract acts as a filter
allowing nutrients to be absorbed while keeping out harmful
substances. The keys to a good functioning digestive tract are
keeping the integrity of the tract's tissues, maintaining of
colony of symbiotic friendly microbes and sustaining a
properly functioning immune system that is localized to the
area. A breech in any one of these elements can cause
undesirable substances to enter the animal. Certain microbes
entering the animal can cause disease and infections. Certain
substances can cause damage to the intestinal tissue resulting
in a decreased ability to absorb nutrients. The entry of
large, undigested proteins can cause allergic reactions.
Consequently, an unhealthy digestive tract will be detrimental
to the well-being of animals when they reach their geriatric
years. Nutrition plays a critical role in keeping the
digestive tract healthy. Foods must be properly processed and
cooked to permit digestion and absorption of nutrients. Foods
must be free of contaminants and toxins especially damaging
mycotoxins. The foods must have the right amount of all key
nutrients in the proper balance to sustain the integrity of
the digestive tract tissues. Certain fibers from chicory root,
sweet potatoes and tomato pomace promote the growth of
friendly microbes that keep out harmful pathogens while fiber
from oats and barley enhance the growth and health of tissues
of the digestive tract. Many companies try to add microbes to
the food in an attempt to increase the colonies of these
organisms in the digestive tract. Unfortunately, this practice
has not been shown to be effective as the microbes developed
in the laboratory do not compete well with the indigenous
organisms in digestive tract.
A simple definition
of an allergy is a miscommunication between the immune system
and the rest of the body. Allergies are usually overemphasized
as a problem with pets. Most veterinary reports and surveys
indicate that only 10% of the dog population and a lower
percentage of cats with allergies are due to foods. However,
reducing the substances that create sensitivities lessens the
chance of the consequences of inflammation. Recent reports
indicate that beef, wheat and milk are the most likely
substances to cause food sensitivities in dogs. However it is
difficult to pin down food allergies especially when
sensitivities caused by insect bites and pollen have been
shown to have a more profound effect than food.
We know that the
quality of nutrition that an animal receives during its entire
life will affect the quality of life of the animal during the
geriatric years. Foods designed to optimize the quality of
life of animals must not only provide nutrients for
maintenance but also be able to sustain vital metabolic
functions which will keep the animal going during physical
activities, stressful times, during challenges from disease
and infections, environmental changes and the rigors of
living. People must look at foods for their pets to determine:
- That it does not readily cause the animal
to become obese
- Has a good blend of omega 6 and 3 fatty
acids
- Use a food that is nutritionally balanced
- Use supplements and treats that are
compatible with the food
- Use foods with more than one source of
protein
- Use foods with chelated trace minerals
- Have a good array of ingredients that
contribute to a wide antioxidant profile
- Has a reasonable amount of fiber that can
sustain growth of good microbes in the digestive tract
- Have ingredients that are not causing
allergies or sensitivities
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