Symptoms of vitamin A deficiency in dogs

Symptoms of deficiency: anorexia, weight loss, pneumonia, kidney stones, urinary stones, night blindness, dry eye syndrome, easy fractures, respiratory infections, neurological disorders, corneal or conjunctival ulcers , and even lead to blindness.
Dangers of overdose: osteoporosis, dry skin and hair loss.

Symptoms of vitamin B deficiency in dogs

Signs of deficiency: indigestion, loss of appetite, neuritis, myocarditis.
Overdose is not harmful.
Note: Feeding a single food for a long time may lead to vitamin B1 deficiency.

Symptoms of vitamin B2 deficiency in dogs

Symptoms of deficiency: hair loss, excessive eye feces, rough coat, and mouth full of drool.
Niacin (belongs to the B vitamins)
Symptoms of deficiency: bad breath, oral ulcers.

Symptoms of vitamin C deficiency in dogs

Signs of deficiency: anemia, loss of appetite, dull coat color, and wounds that are difficult to heal.
Overdose is not harmful.
Note: Vitamin C can detoxify, resist oxidation, promote wound healing, and can be synthesized by itself.

Symptoms of vitamin D deficiency in dogs

Signs of deficiency: soft bones, rickets, difficulty moving, deformed limb joints, and lack of enamel on teeth.
Dangers of excess: uneven calcium accumulation in bones can even affect the kidneys and trachea, leading to uremia.
Note: Only vitamin D2 and vitamin D3 are beneficial to dogs, which can be obtained by sunbathing.

Symptoms of vitamin E deficiency in dogs

Symptoms of deficiency: Reduced reproductive capacity, which can easily cause dystocia for female dogs.
Overdose is not harmful.
Note: Vitamin E is a natural antioxidant and is important for dog fertility.

Symptoms of vitamin K deficiency in dogs

Manifestations of deficiency: subcutaneous, muscle, and intestinal bleeding.
Overdose is not harmful.
Note: Vitamin K is used to stop bleeding and can be synthesized by itself.