Nutritional Facts

With Dr. Randall Johnson

At Do Only Good, we understand the power of science-backed nutrition. This is why we have partnered with Dr. Randall Johnson, one of the foremost pet nutritionists in the industry, to provide you – the pet parent – with the latest scientific information regarding pet nutrition.

Dr. Johnson has over 36 years of business and academic experience in animal nutrition.  He is a registered professional animal scientist, a diplomat in the American College of Animal Nutrition, a professional member of the Institute of Food Technology, the American Society of Animal Science, and the American Association of Veterinary Nutrition. He has trained over 200 nutritionists and their staffs in over 26 countries on how to formulate pet diets.

With his extensive knowledge of pet food nutrition and formulation, Dr. Johnson’s articles will keep you well-informed and aid you in choosing the optimal diet for your pets.

If you have further questions after reading the articles, please click the “Ask Dr. Johnson” button and he will be happy to help you.

Ask Dr. Johnson


By admin-1   |   April 12, 2019   |   Categories: Nutrition   |  

As many of you know, I have dedicated my life to animal nutrition. Over the years, I have seen my share of erroneous information not based on scientific research. However, in recent years this trend has increased dramatically due to the internet.

Good science, however, can be found online. On the contrary, many scientific journals and associations which promote the wellbeing of our pets can be a source of excellent information. However, what I do find problematic is people – pet lovers they may be – warning the public against specific ingredients in pet food not based on hard data or measured studies.

An excellent example of this is the recent questions I have been asked about peas. In general, are peas healthy for my dog, and more specifically, can the lectin content in peas bonding to bile acids secreted from the gall bladder prevent it from being recycled?  Here was my reply:

That is currently a hypothesis that certain factions of peas and lentils fiber content form a substance from the lectins that bind the bile salts so that taurine is not reabsorbed into the blood stream.  This is being looked at, but at this time the FDA has not found any data to support this postulated theory. Peas have been fed for decades, without problems, and when a report from an abstract poster paper is presented concerning 33 dogs with heart problems ranging in ages adult to very old have heart problems and some of them are diagnosed as DCM, from a population of the 58 million dogs in North America it is hard without good science to know what is going on until the FDA studies are completed.

Here is the key point: There are many organizations (the FDA, AAFCO, the USDA) whose job it is to protect the public and conduct experiments to ensure the safety of what goes into our pet’s food. There are also controlled experiments in progress by many in the scientific community and academia who are invested in research. I also encourage you to speak with your veterinarian on questions about the health and safety of your pet.

I understand that for the average pet parent probably does not have a Certified Pet Nutritionist at the ready. At Do Only Good Pet Nutrition, we have created, ‘Ask Dr. Johnson’ – it is our way of providing you a forum to ask questions and gain practical knowledge about pet nutrition.

Please visit our website at under the tab, ‘Nutritional Facts’ to contact me or check out past articles.


Autumn Sale

Save 30% on all kibble & pumpkin with electrolytes

Coupon Code: FALL4DOG

Save 20% on ALL other D.O.G. products