Articles by Greg Aldrich, PhD

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Are chelated minerals worth it?

The question is whether they provide additional benefit to the dog or cat
In the petfood industry, inorganic forms of essential trace minerals such as iron, zinc, copper, manganese, iodine and selenium have been the staple. In recent years, though, chelated forms of these minerals have found their way into a number of petfoods. The questions are whether they provide additional benefit to the dog or cat and if they have a place in petfood.
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Does MOS work for petfoods?

It may support gut health, but is it essential for healthy dogs and cats?
Mannan oligosaccharide - also called mannans or, more commonly, MOS - is a naturally occurring component of yeast cell walls. MOS has been researched extensively for use in livestock nutrition and more recently for humans and pets, mainly in Europe and Asia. While most of the nutrition-related discovery has occurred in the past few years, references on mannans appear in literature dating back a half century.
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Does adding enzymes to petfoods help digestion?

Enzymes hold a great deal of promise but also present challenges
Adding enzymes to the diet to aid digestion has been a source of intrigue for the petfood industry for a number of years. Enzymes (for example, digests and hydrolyzed proteins) are common in petfood production but are seldom found as ingredients in the diet.
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Rice bran: filler or functional fiber?

Some of these so-called fillers may actually be positive additions to pet diets
A common claim in marketing petfoods has been the statement "no fillers." The connotation of the filler has been that of chaff and other inert fractions that occur during the milling process; fractions such as bran, middlings and hulls were figuratively and often literally swept up into one bucket. The challenge, as we learn more about the beneficial effects of various fiber fractions, is that some of these so-called fillers may actually be positive additions to pet diets.
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Salt: what is wrong with it?

Sodium and chloride are considered essential minerals in dog and cat diets
For years, salt had been one of those ingredients in petfood that was so innocuous it had become almost invisible. Recently, though, consumers have been expressing concerns about it. This new attention to salt indicates it has become one of those ingredients with an issue.
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Help for food sensitivities?

Adverse food reactions and food intolerances, hypersensitivities and allergies are popular topics of discussion among pet owners. The problems may be linked by a common thread: the overreaction of the immune system to a dietary component, most...
Adverse food reactions and food intolerances, hypersensitivities and allergies are popular topics of discussion among pet owners. The problems may be linked by a common thread: the overreaction of the immune system to a dietary component, most probably a protein. The ultimate solution may depend on hydrolysis of proteins to render them hypoallergenic.
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Whey your protein options

As an ingredient, whey represents a quality, high protein component with nutritional and functional properties
It is becoming increasingly common to find petfoods that contain whey, a milk protein, as a prominent ingredient on their labels
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Ingredients as nutrient delivery devices

A valuable exchange of new science and information from around the world of companion animals
Companion animal researchers and industry professionals gathered recently at the annual American Society of Animal Science meeting in San Antonio, Texas, USA, for research presentations/posters and a companion animal symposium entitled "Ingredients as nutrient delivery devices." Here are highlights from the symposium.
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