Can feeding human food make my dog aggressive and unhealthy?

This is a difficult situation. Basically you cannot do anything other than suggest that they feed a complete dogfood to their dogs. You can tell them that they do not eat dog food, so why should a dog eat human food? Unfortunately you will not be able to do anything about it should they not listen to you.

Yes that is very unhealthy, and the high fat content could lead to GI upset or worse down the line. If you are trying to feed home cooked, you will need to make sure there is a balanced variety of foods such as some grain, vegetables, etc in addition to meat. Dogs are like people, in that they will prefer "junk" foods over their "healthy" foods (IE people food he is currently getting). It would be best to stop all treats and people foods and only offer his current diet. You'll want to set it down 15 minutes, and whatever is not eaten gets picked up and fed again a few hours later. Eventually, Bailey should be curious enough to try out his food again.

Ideally you would feed your dog consistently the same dry dog food. Some dogs have a sensitive stomach and switching up food/offering table food can cause stomach upset (vomiting, diarrhea), or can lead to a picky eater. Also some human foods can be toxic to dogs (raisins, grapes, and garlic and onion are not recommended). I would try to stick to a consistent dry dog food for your dog, which will also provide a more complete and balanced source of nutrition.

No, I would not make part of your pet's diet human food. Animals do not need human food, and their pet food will provide all the nutrients they need. Giving them human food too often can lead to obesity, which then can lead to health problems such as diabetes, heart disease, and joint problems. I would feed your pet their animal formulated food only.

Feeding from the table can make your puppy fat, and also there are several human foods that are toxic to dogs. Some dogs fed from the table begun to refuse to eat their regular dog food, which is nutritionally balanced for them (while table food is not). I would suggest following the advice of your vet for the best outcome for your puppy.

A poor balanced diet can decrease their life span and lead to secondary health problems such as poor dental disease and GI upset A well balanced commercial diet is best as it is balanced appropriately. You can give plain boiled chicken or cooked salmon in small quantities as something special and this will not harm her

This is a great question! It is possible to cook balanced meals for Phoebe, but it does take a little work. Please visit balanceit.com and https://www.aspca.org/pet-care/animal-poison-control for information on balanced diets for dogs and what is safe for them to eat. Raw diets are not recommended by the AVMA due to the risk of transmission of food borne diseases to both pets and humans. Please see the following link for more information about this https://www.avma.org/KB/Policies/Pages/Raw-or-Undercooked-Animal-Source-Protein-in-Cat-and-Dog-Diets.aspx.