Fruits that dogs can take and fruits that are bad for dogs...

Grapes and Raisins: Grapes and raisins can cause kidney failure in dogs. As little as a single serving of raisins can kill a dog

Onions: Onions destroy red blood cells and can cause anemia.

Chocolate: Chocolate can cause seizures, coma and death. Baker’s chocolate is the most dangerous. A dog can consume milk chocolate and appear to be fine because it is not as concentrated, but it is still dangerous.

Coffee, Coffee grounds, tea and tea bags: Drinks/foods containing caffeine cause many of the same symptoms chocolate causes

Macadamia Nuts: Macadamia nuts can cause weakness, muscle tremor and paralysis.

Animal fat and fried foods: Excessive fat can cause pancreatitis.

Bones: Bones can splinter and damage a dog’s internal organs.

Tomatoes: Tomatoes can cause tremors and heart arrhythmias. Tomatoe plants and the most toxic, but tomatoes themselves are also unsafe.

Avocados: The fruit, pit and plant are all toxic. They can cause difficulty breathing and fluid accumulation in the chest, abdomen and heart

Nutmeg: Nutmeg can cause tremors, seizures and death

Apples, Cherries, Peaches and similar fruit: The seeds of these fruits contain cyanide, which is poisonous to dogs as well as humans. Unlike humans, dogs do not know to stop eating at the core/pit and easily ingest them.

Raw eggs: Raw eggs can cause salmonella poisoning in dogs. Dogs have a shorter digestive tract than humans and are not as likely to suffer from food poisoning, but it is still possible.

Salt: Excessive salt intake can cause kidney problems.

Food that most dogs can eat:

Some “human” foods are good for dogs. Most of these are healthier than the boxed treats you buy in the grocery store. . This is just a small list of examples of foods dogs can eat, not a list of every food they should eat. Dogs won’t necessarily get all the nutrients they need if they eat these foods exclusively, so check with your veterinarian if you are interested in feeding your dog a home cooked diet.
Any food that causes stomach upsets or digestive problems in your dogs should be avoided. Like people, some dogs cannot tolerate certain foods even if they are considered "safe".

Meats:
Meats should be boneless and it’s best if the skin is removed. A raw meat is not considerable as a good idea because of the small risk of food poisoning and parasites.
Skinless, boneless chicken breast
Skinless, boneless turkey breast
Boneless fish
Beef Liver
Chicken Livers

Vegetables:
Dogs have shorter digestive tracts than humans and cannot digest most vegetables whole or in large chunks. It’s best to put them through a food processor before giving them to your dog
Carrots
Green Beans
Lettuce
Potatoes
Yams
Red and green bell peppers
Sweet Potata

Grains:
Grains should not be given in large amounts or make up a large part of a dog’s diet, but these foods are generally safe in small amounts
Rice
Bread
Oats

Dairy products
Use caution with dairy products as they are high in fat and can cause pancreatic, gas and diarrhea. Usually, nonfat plain yogurt is safe in small amounts