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Reply To: Raw Food Recommendations?
Hi M & C,
Initially I wrote out how to hand calculate but the post got so long so deleted it. Hand calculating an estimated caloric value is just an extension of calculating the number of fat calories. For a G/A that lists min protein as 25 and min fat as 25 and max moisture at 10 and max fiber as 5 you can estimate carbs by subtracting the knowns from 100. If you know the ash content, you need to subtract that too, but if you don’t you can guess (Balanceit uses 3). In this example estimated carbs is 100-25-25-10-5-3= 32. Next multiply each macronutrient by number of kcals/gram, which is 4 for protein and carb and 9 for fat. For kibble I use the Modified Atwater numbers which are 3.5 kcals/gram for protein and carb and 8.5 kcals/gram for fat to accounts for digestibility. For this example (4X25) + (4X 32) + (9 X 25) = 453 kcals/100 grams= 4530kcals/kg
Estimating is fraught with error though, especially with fresh foods, which I why I use the given caloric information if it is available. What I’ve found is the underreporting of fat in raw foods is very common, this is evident if your carb number ends up high when there is no plant matter listed in the ingredients. Also, you can back calculate fat content if they give the caloric information.
Years ago, I asked a company whose name would imply that they would respond to inquiry, what the fat content was in their food. They wrote back that it took them years of research to determine the ideal amount and that they would not just give that information away to someone who could be trying to poach their recipe. I thanked them for their answer and said I as estimating it to be 35 % . They wrote back gob smacked wanting to know how I knew. It would be funny if it wasn’t so sad. Yet another example of a company that appeared to have no clue what they are doing.
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Search Forums
Recent Topics
-
Acid Reflux
by
Sarah S
4 weeks ago -
Hip and Joint supplements
by
Judy R
4 weeks ago -
Innovations in pet care
by
Troy Lex
1 month, 1 week ago -
Good dog food for almost 16 year old with elevated liver enzymes and beg kindey
by
Kelly S
2 months ago -
Discounts & On Sale Items for Dog Supplies
by
Emma Monty
2 months, 2 weeks ago
Recent Replies
-
Futsum Abraham on Cane Corso lipomas
-
Evans Shane on Badlands Ranch Superfood Complete
-
Victor Renaud on Food mix recommendations and homemade food book recommendations?
-
Rachael Baum on Supplement recommendations for Cushing’s Disease?
-
Victor Renaud on Large and Giant Breed Puppy Nutrition
-
Emma Monty on Large and Giant Breed Puppy Nutrition
-
Mike Killion on symptoms worsen on hypoallergenic
-
Mozelle Koss on Your recommended brands
-
Mozelle Koss on Expiration on kibble question
-
Adam Bee on Hip and Joint supplements
-
Barb Conway on Acid Reflux
-
Adam Bee on Need feeding advice please
-
Lewis F on Hip and Joint supplements
-
Shannon May on Nitrate content of Farmland Traditions Chicken Jerky treats?
-
thew dental on High quality food that will help my dog lose weight and not poop so much?