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Thomas Sandberg, CSAN, CCNC, AADP


Thomas Sandberg is a researcher, animal activist, author, and Animal Naturopath who is board-certified by the American Council of Animal Naturopathy and the American Association of Drugless Practitioners. He was born in Norway but now lives in Park City, Utah, with his pack of two Great Danes and two cats.

He has a background in biology, chemistry, naturopathy and is currently studying and testing: cellular health, epigenetics, energy healing (PEMF, PBM, and LLT therapy) to see how these can be applied to keep animals in homeostasis.

Thomas has always believed that dogs and cats should live much longer than they do today. Based on his research and the data from his studies, he has developed several strategies on how we can extend the life of our pets and also lower the risk of cancer and other chronic diseases taking our pets.


Founder of the world’s longest and largest observational study into raw-fed dogs and cats (2000-2030).

Thomas Sandberg is the founder of ‘Long Living Pets Research Projects‘, a thirty-year observational study into pet longevity, cancer prevention, and the effectiveness of current ‘cures’ vs. natural modalities.

Thomas is 20 years into his one-of-a-kind study with over 6,000 dogs from around the world. He is in the process of expanding the study to 10,000 dogs and 5,000 cats. His study is being observed by several veterinarians, holistic veterinarians, holistic practitioners, and scientists. This study/research is self-funded and not influenced by any commercial entities.

Thomas has been featured in numerous magazines, podcasts, and radio shows. He is constantly looking for more dogs and cats to join his study. Contact him if you feed raw and want to participate. There is no cost involved.

Thomas also consults pet owners with pets with cancer in exchange for their stories. Thomas has collected data from hundreds of cases. He has learned more from these cases than any other source and developed strategies he shares with others fighting cancer. Thomas believes the risk of cancer can be reduced drastically with the right approach.  The data from the study strongly indicate this.

Thomas believes there will never be a ‘cure’ since cancer is a natural function that a healthy body recognizes and will initiate proper actions to stop at an early stage (apoptosis). Keeping the body in homeostasis is the ‘cure.’


Opening Long Living Pets Rescue and Rehab Center (2024-2025)

Long Living Pets Rescue and Rehab CenterThomas is currently raising funds for a new rescue and rehab center he plans to open in 2024-2025. The center will adopt pets from shelters that will be euthanized due to lack of funds to give them medical attention. Thomas will mainly apply natural modalities to restore these pets back to health. He will share and teach his approach with animal lovers worldwide so anyone can do the same.

He started ‘Long Living Pets Research Academy,’ where he shares and educates pet owners on how he applies natural modalities to restore these pets back to homeostasis (balance). This will hopefully encourage many to adopt sick pets and give them a second chance.

It is extremely gratifying to rescue these pets and observe how they become healthier and add years to their lives using a natural approach to restore their immune system. By sharing this information we can save many pets from ending their lives by gas or poison. – Thomas.

Click the button below to book Thomas for webinars or articles and learn more about his work and what he has discovered from his studies.


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Colloidal SilverMany come to this page for my Colloidal Silver.

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What is an Animal Naturopath?

It’s in the name. We use nature as the path to prevent and recover from dis-ease. We believe the body of an animal and a human has the ability to heal itself when provided an environment that will promote homeostasis. This includes proper nutrients supplied through an appropriate diet for a species (dogs and cats).

The allopathic side of medicine heavily criticizes my approach. I’ve been called a quack more times than I can count. However, I’m unfazed by these remarks; I am confident that I am advocating for the truth, and that is what motivates me.

Symptoms are to a naturopath a road map to the cause of the disease. They are signs of a body out of ease (disease). Symptoms are also a part of the healing process. Disrupting this process with drugs and medication masks the symptoms, giving a false impression of a cure. It does not eliminate the cause. Therefore, the animal is not healed permanently.

A naturopath will add what restores homeostasis and remove what blocks it using only natural modalities based on the laws of nature. This all starts on a cellular level. Healthy cells are the foundation for a healthy body, and Thomas spends much time researching cellular biology.

Why did I become an Animal Naturopath?

Over the last twenty years, I have seen our pets suffer unnecessarily from our ignorance of what it means to keep them healthy and free from diseases. We are thought to believe that the food we call pet food is good, that vaccinating regularly is good, and that administering drugs when symptoms of disease appear is good. Most feel that anyone who does not believe this doesn’t know what they are doing. Well, I’m one of them.

I never wanted to be a veterinarian, allopathic or holistic. My goal is to prevent a dog or cat from becoming chronically ill. Yes, pets get sick, as we do, but in most cases, when they are healthy, they recover on their own. My work aims to share what I know about prevention and how to help a pet live a healthy, long life.

I don’t brag, but I know how to do that. The best advice I can give any pet owner is to be proactive and create an environment that builds a robust immune system. That’s my expertise and what I want to promote. That’s what Naturopaths do—they promote and teach the prevention of disease.

That’s why I became an animal naturopath, and I will fight for our recognition and work to educate all pet owners about the value of what we have to share. All I want is for people to listen, then they can decide. Naturopaths never tell anyone what to do. We are happy to share what we have seen working and consult you on the implementation. I look at a Naturopath as one who shares the knowledge that will benefit your animal and never hurt it. “Do no harm” is one of our laws.

In most veterinarians’ opinion, I’m a quack. I will honestly be a quack rather than someone who does not understand the power of nature and what it can do to protect and restore the health of an animal without drugs and medication that often poison the body and compromise the immune system.  If we need to apply anything to help the healing process, naturopaths use what nature provides. This has been done for thousands of years with great success. These modalities and strategies would not survive if they did not work. Think Chinese and Ayurvedic medicine.  Research supports the benefits of many of these herbs.

I take a lot of heat for my approach, but I’m always encouraged by this quote by Albert Einstein, which is one that also hangs in my office:

“Great spirits have always encountered violent opposition from mediocre minds. The mediocre mind is incapable of understanding the man who refuses to bow blindly to conventional prejudices and chooses instead to express his opinions courageously and honestly.”

There are movements towards integrated medicine, which tells me some vets believe natural medicine exists and can be helpful. More vets are becoming concerned about the side effects of drugs. In integrated medicine, some drugs are replaced with natural medicine. I like to go even further and replace them all. Another encouraging trend I’m seeing is using energy healing like red light therapies. I am a huge believer in this since it stimulates the mitochondria to produce more ATP. I currently use this on my older pets and myself. If you are interested in learning more about red light therapy, please feel free to contact me, I will share what I know.

My recommendation, if you want to protect your pet from dis-ease, is to find an animal naturopath and hear them out. If you have a pet with a chronic disease, seek your veterinarian for a diagnosis, then meet with a holistic vet or naturopath. If you have a pet severely injured, always see a veterinarian first.  Veterinarians are highly educated and trained to deal with trauma and most are very good at it. When your pet is stable and ready for recovery, it is a good time to consult with holistic resources and get their opinion.

What I found is that most Animal Naturopaths have no ego, they are in it for the welfare and love for animals. Many do not make a lot of money and often do things at no cost. We all need to make a living but we do not take advantage of owners that have pets in distress. We don’t drive a BMW or Mercedes, we are down to earth people that are willing to share.

Every animal naturopath I know entered this profession because of their unconditional love for animals and their strong desire to not let them suffer due to lack of knowledge. We are all on a mission to share what we know with anyone that wants to listen. We may be quacks in western medicine’s view, but what we share has a much longer history than what the western medicine practise.  It is up to you to decide the best strategy for your beloved pet.

A naturopath does NOT examine, diagnose, treat or offer to treat or cure or attempt to cure any medical or mental diseases, disorder or illness, or any physical deformity or injury, and Thomas Sandberg does not recommend or prescribe or recommend changing the dosage or discontinuing any prescription, medication or pharmaceutical drugs.


Thomas Sandberg’s Current Projects 

If you feed any type of raw food (not vegan) to your pets (dog or cat any age or breed), please join this study. We are aiming for 10K dogs and 5K cats participating.

Please help support the Long Living Pets Rescue and Research Center. We will rescue sick pets from shelters and restore their health using natural modalities.  

I started Long Living Pets Research Academy to create a safe and private place where we can share the many natural modalities that benefit our pets. 

I wrote this book for beginner raw feeders but anyone will benefit from reading it. The proceeds go to Long Living Pets Rescue and Research Center.

join long living pets research projects

This is the World’s Longest and Largest Observational Study into raw fed dogs and cats. Thousands of dogs and cats are participating. We will follow these dogs for their entire life and report and document their lifespan and health.

If you feed a raw food diet you are welcome to participate in the study.

More here

Long Living Pets Rescue and Rehab CenterLong Living Pets Rescue and Rehab Center adopt pets that are scheduled for euthanasia and heal them holistically.

If you want to learn more and help share this project with others…

More here