Fluid is lost from the body by breathing/panting (insensible), normal urination or polyuria, (urinary), and normal bowel movements or diarrhea (fecal). They're called sensible losses because they can be easily detected and measured. Vomiting fits into the sensible category and when it's severe, dehydration can take place, as well as with diarrhea and polyuria.
Diarrhea can be a symptom of many different conditions, and if it persists, should be diagnosed by a vet. Home remedies are not recommended until a vet has definitively diagnosed the problem.
Some possibilities include food sensitivity and Inflammatory Bowel Disease.
When diarrhea is a problem, the possibilities for both dehydration [1] and hypoglycemia increase. [2][3][4] The insulin dose you give depends partly on the meal being digested at a normal rate. When the food passing through the system speeds up in this manner, the insulin is still being absorbed at its usual rate. [5] It could mean that there's not enough food to match the insulin dose and a hypo could occur. You and your vet may want to temporarily decrease the insulin dose until you are both satisfied the diarrhea is under control. 
References[]
- ↑ Fluid Loss From Diarrhea. Washington State University.
- ↑ Hanas, Ragnar (2006). Vomiting/Diarrhea. Children With Diabetes.
- ↑ Hanas, Ragnar (2006). Insulin Requirements Decrease With Diarrhea/Vomiting. Children With Diabetes.
- ↑ Hypoglycemia. Intervet UK.
- ↑ Other Medical Problems. Drugs.com.
More Information[]
- Acute Diarrhea in Dogs Petplace.com
- Chronic Diarrhea in Dogs Petplace.com
- Gastrointestinal Signs in Endocrine Diseases-Dogs & Cats Provet UK
- Chronic Diarrhea Steiner, Jörg, 2001, WSAVA
- Diagnosis and Management of Refractory Diarrhea Burrows, Colin F., 2004, WSAVA
- Diagnosis and Management of Refractory Diarrhea Burrows, Colin F., 2003, WSAVA
- Drugs Used in Treatment of Diarrhea Merck Veterinary Manual
- Antidiarrheal Drugs Merck Veterinary Manual
- Fiber in Pet Foods Pet Education.com-Drs. Foster & Smith
- Sodium & Chloride Deficiency in Diarrhea Pet Education.com-Drs. Foster & Smith
- Potassium Deficiency & Diarrhea Pet Education.com-Drs. Foster & Smith
- Diarrhea-Dietary Management in Dogs PetsHealth
- Digestive Disturbances in Dogs PetsHealth
- Chronic Diarrhea Simpson, Kenneth W., October 2000, District of Columbia Academy of Veterinary Medicine
- Fluid therapy in vomiting and diarrhea Brown AJ, Otto CM., 2008, Veterinary Clinics of North America-Small Animal Practice
- Dog Diarrhea: When is it Serious? New Hope Animal Hospital
- Diarrhea Washington State University
- Nutritional Management of the Most Common Digestive Diseases in Dogs and CatsAulus Cavalieri Carciofi, Márcio Antonio Brunetto, 2009, WSAVA
- Probiotics, Prebiotics, and Synbiotics. What Are They and When Should They Be Implemented?Marks, Stanley L., 2009, WSAVA
- Adverse Reactions to Food: Chronic Adverse Immunological Responses to Dietary Antigens Cave, Nick, 2010, WSAVA
- Dietary Approach to Gastrointestinal Disorders--Acute Gastroenteritis Cave, Nick, 2010, WSAVA
- How I Treat--Small Intestinal Dysbacteriosis Steiner, Jörg M., 2010, WSAVA
- Diarrhea Caused by Giardia and Clostridium Perfringens Enterotoxicosis Tams, Todd R., 2001, Atlantic Coast Veterinary Conference
- Diagnosis and Management of Large Intestinal Disorders in Dogs Tams, Todd R., 2001, Atlantic Coast Veterinary Conference