Join Date: Dec 2007
Location: Ontario Canada
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Photo Submissions 111 Times in 109 Posts
letter from Sabine
There is no "recommended" amount of iodine per pound of commercial food. The minimum level mandated by AAFCO is 1.5 mg (that's milligrams and equals 1,500 micrograms) per kilogram (2.2 pounds) dry matter (not as fed) at an energy density of 3,500 kcal per kg. That's a minimum requirement, set by AAFCO over 20 years ago.
It also states that if the energy density is over 4,000 kcal it should be corrected, and if it is below 3,500 kcal it should not be corrected. The allowable maximum is 50,000 mcg/kg - which of course would be totally insane. Can you imagine what that would do to a dog if ingested on a daily basis?
Either way, this leaves us with the "one size fits all" approach of all commercial foods, with a linear increase in nutrients as the feeding amount goes up - two cups of food contain twice as much as one cup.
Again, the difference to the NRC table based on individual body weight (updated in 2006) is that it provides a recommended daily intake. Not a minimum, not a maximum, but what is considered ideal for a specific body size, and it doesn't increase linerarly per pound of body weight. A 100 lb dog doesn't need 10 times as much s a 10 lb dog, and a 25 lb dog needs more than half of a 50 lb dog.
PlaqueOff is made from a specific strain of seaweed (Ascophyllum nodosum, very commonly used for supplements). Yes, it's "natural" but that doesn't mean it's harmless or that someone can't overdose on it. On their website for the human version they even state "This product contains a rich natural source of iodine. For this reason individuals receiving thyroid treatment should consult a medical practitioner before use." and "Since there have been no specific studies conducted to assess how ProDen PlaqueOff may affect the foetus, women are advised not to use the product whilst pregnant or breast feeding."
In her book Dr. Dodds reports on a litter of puppies affected because the dam was over-supplemented with kelp during the late stage of pregnancy and during nursing. She also warns against excessive supplementation from kelp in addition with commercial diets, especially kibble. I trust Dr. Dodds more than the claims of a company with a vested interest in selling a product, but I've had this position before Dr. Dodds wrote her book or started lecturing about the topic.
Dave and Molly
Ian Dunbar was awarded the Outstanding Achievement Award from I.P.D.T.A. Here's a picture of me accepting the award on his behalf.
Member of IAABC ,International Association of Animal Behavior Consultants , Member of Pet Professional Guild