Experienced and professional animal trainer provide their insights in answering this question :
A. Is she wormed regularly with a good quality worm treatment? If so It may be worth trying a different diet. I like the royal canin and the science diets. It may be that she has a medical problem such as hyperthyroidism so if it continues and she is loosing weight despite being ravenous then you need some blood work done.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

They have very small stomachs (only about the size of a ping pong ball). Your cat will start to get hungry about 5 hours after eating. If you`re going more than about 8 hours between meals, which many people are when they feed in the evening and not again until morning, your cat is starving by morning.
As cats age, their metabolism changes, and their bodies lose muscle mass. Your feline may be feeling hungrier to keep up with these changes. Your veterinarian can help determine the amount of fats, proteins, amino acids, and carbohydrates your cat should ingest daily to help lessen the cries for more food.
The mix is key: The right balance between dry and wet food

To meet your cat`s energy needs with wet and dry food, we recommend dividing the total feed by 3 and then feeding as follows: Give your cat 2/3 of the amount of food in the form of wet food and divide it into two rations (e.g. breakfast and dinner).

Why? Because raw or canned food`s higher moisture content plays a major role in a cat`s overall health and hydration.
You can feed your cat wet food any time of day. It`s important to remember, though, that canned food cannot sit out for more than a half hour to an hour or it will spoil. So, it`s best to feed at a time where you can clean up after your cat if they don`t eat it all.
If your cat is hungry all the time, it could be a sign of a serious health issue like hyperthyroidism, diabetes or cancer. This handy guide looks at possible causes of overeating, symptoms to look out for and what to do if you`re concerned about your cat`s feeding habits.
The bottom line.

While kittens should be fed up to three times a day, once a cat becomes an adult (at about one year of age) feeding once or twice a day is just fine, says the Cornell Feline Health Center. In fact, feeding just once a day should be acceptable for the majority of cats.

How Much to Feed a Senior Cat. Most senior cats will have about the same caloric needs as an adult cat—roughly 280 to 360 daily calories depending on the normal lean weight—as long as they are healthy. Some older cats will actually have an increase in energy requirements.
Cats can and should eat wet food every day because it agrees with the feline digestive system better than dry or semi-moist food. Wild cats hunt and eat bugs, rodents, and small birds. Their bodies are used to processing raw meat, which is high in protein and has almost zero carbs.
Most cats need 4-5 ounces of canned food per day, total. Pate-style varieties tend to be higher in calories per can than the varieties that more resemble people food with chunks and gravies- this can be useful when trying to fine-tune the number of calories per day being consumed.
While Mr Whiskers may like consistency in most areas of life, it is possible for your cat to feel bored of the same food. Part of this has to do with the innate nature of cats as apex predators.
Canned food is also highly palatable, and some cats will eat a canned diet over a dry diet, particularly if they are picky eaters.
There`s no strict window of time when your cat should eat breakfast, but earlier can definitely be better. “It`s typically best to feed them first thing, or they may start waking you up or bugging you until you do,” Dr. Bonk said. Regardless of when you give your cat his first meal of the day, Dr.
Instead, they have two options: wet food, or dry kibble. Unlike dry cat food, wet food has enough water in it to provide your cat with much of the hydration they need. You can then use a running source of water (like a pet fountain) to provide the rest of the hydration that they need.
How Long Can Wet Cat Food Sit Out? If your cat has only eaten a portion of its bowl of wet food, you are left wondering, “Can wet cat food sit out?” Ideally, wet cat food should never be left sitting in a dish for more than one to two hours.
Offer him several small meals during the day.

For your cat to be less hungry between meals, it is better to divide his daily portion of food into several small meals (3 to 5) during the day. This way, the level of nutrients and energy in his blood remains stable for longer than if he eats a lot at once.

Portioning out food can help with cat hunger

Spreading food out in treat puzzle toys, food dishes with dividers, or even a mini muffin pan can likewise help slow down your cat`s eating habits and give them more time to feel full. There`s also no reason to keep everything restricted to your cat`s usual eating space.

In recent years, feline ages and life-stages have been redefined, cats are considered to be elderly once they reach 11 years with senior cats defined as those aged between 11-14 years and super-senior cats 15 years and upwards.
How Often Should Cats Poop? Most cats poop about once a day, though it`s also normal for a cat to poop every 12-36 hours. Kittens may poop up to three times per day, while older cats are usually less often. If your cat poops more than 3 times per day or less than once per day, consult your veterinarian.
Most cats should drink about 4 ounces of water per 5 pounds of body weight in a day, give or take an ounce in either direction.
Ideal Weight for Cats

Most domestic cats should weigh about 10 pounds, though that can vary by breed and frame.

Pet Nutrition: Choose the Right Food for Your Cat

You can choose to feed your cat a diet that consists solely of canned cat food or wet food pouches, just make sure to know their caloric needs and not overfeed.

Wet food is more expensive and less easy to use but can be beneficial in cats prone to lower urinary tract disease, constipation and that are overweight. Dry food can be a very efficient way to provide calories in thin cats with food volume limitations and allows for the use of food puzzles and food toy dispensers.
Canned food is more expensive per energy calorie than kibble due to the high water content and the packaging. Another disadvantage to canned cat food is that for some cats, canned food may contribute to periodontal disease.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. My cats nose is stopped up on antibiotics. She has a loss of appetite, acting normal though. Is 3 ounces of can food enough in 24h? 9 pound cat
ANSWER : A. Cats with stopped up noses tend to eat much less, as you’ve noted, because they can’t smell their food as well. And the smell of food is pretty important to a cat’s appetite. You can start by warming up the food in a microwave – not too hot, test it yourself by putting your finger right in the center, as the temperature of microwave food can vary – as this will intensify the smell and hopefully make your cat more interested.

Saline nose drops, like those that are used on little kids, are safe to use on a cat to clean the discharge that is dried around and in the nose. There’s a brand called Little Noses that’s available in the U.S. That I like. You can put it on a q-tip and try to remove the debris. Humidifying the air with a humidifier can help as well, or you can put the cat in the bathroom and run the shower enough to generate steam. Don’t use “real” nose drops like Neo-synephrine or anything else like that – cats quickly build up resistance to them.

A 3 oz can of food is an OK amount in 24 hours, but do try the techniques above to help your cat get more interested in food. You might also try some baby food – no garlic or onions in the ingredients – as cats usually really like the taste of it.

Q. Why do cats meow?
ANSWER : A. Cat parents often wish they could better understand what their favorite feline friends want or desire. A cat’s meow can be interpreted in many different ways and can indicate an array of feelings and needs. Here are some of the most common reasons for your cat’s vocalizations:

1. Greeting- Many cats will meow as a greeting when you enter your home or walk into a room. Cats will also meow at another cat or animal in the household to extend a hello and acknowledge the other animal’s presence.

2. Attention – An exuberant meow followed by leg rubbing or another attention seeking behavior may indicate your cat is looking for some quality time spent together. Some petting or rubbing behind the ears may be in order.

3. Hunger – A meowing cat is often a hungry cat. This is one of the most common reasons for a cat to vocalize to their owners. A cat will meow to get your attention at feeding times or even when they want extra food.

4. Sickness – A sick or hurt cat may begin to meow excessively, warranting a visit to the veterinarian. There are numerous reasons for a cat in distress to meow—whether it is related to an upset stomach, an injured leg or a urinary blockage. These meows should be carefully investigated.

5. Entering or leaving – Most cats will vocalize when they want to be let in or out of a room. You may notice when you are in the bathroom or behind the closed door of a room that your cat begins to meow, scratches at the door, and often reaches its paw under the door. This is a clear indication that the cat wants to be where you are.

6. Angry – An agitated cat may meow to warn their owner or another household pet that they are upset and would like to be left alone. This angry meow may increase in sound volume as the cat becomes more stressed or agitated. Often a cat will exhibit this type of meow at the veterinary office when they are unhappy with their examination or restraint.

Each feline is different and so are their vocalizations. Learn to understand the variety of meows your cat uses on a daily basis. This will help you develop a better relationship with your cat and help them live a more trusting and happier life.

Q. Cat was vomiting for a few days. Took to vet, received anti-nausea medicine 2 days ago. Drinks and no longer vomits, but won’t eat. I’m worried
ANSWER : A. If your cat has been feeling nauseated, it is possible that the nausea, or just general illness is making him want to eat less. However, you can try enticing him to eat with a few tricks geared to cats.

Warming up wet foods or even bland people foods such as plain chicken or boiled hamburger can make food more interesting to cats. Cats tend to go for aromatic rather than flavorful foods, so making the food as “smelly” as possible may encourage your cat to take a bite. Bland foods are also good for helping to soothe upset stomachs, which may still be happening if your cat had recently had a vomiting episode.

However, if enticing your cat to eat does not work, or he continues to refuse to eat any food, it is best to contact your local veterinarian for more care and testing. Cats can become very ill if they refuse to eat for more than a few days, and finding the underlying cause can help your cat feel better.

Q. My cat can only eat strained baby food consistency food. What do I add to strained meat to give her what she needs? She is a torti Persian 5 lbs
ANSWER : A. You should be offering her some wet cat food. Any brand is okay, but you could find a high quality food if you look hard. Cats prefer getting their water from their food, so it’s important to use wet food for a cat instead of just dry food. It’s okay to feed her white meat chicken, and things like that if you want, but you should definitely be feeding some sort of CAT FOOD.. and I bet wet food would be appealing to her considering it’s very moist, like baby food. You can even mash it up further, and look for a food that is really liquidy.

Q. My cat is one year old. He has diarrhea, not eating last for one day. This problem is too with my other 2 cats and one is died.
ANSWER : A. His not eating is the most concerning for me. They cannot go more than a few days without eating or they risk liver damage. Your cat needs to be seen by your vet for an exam and bloodwork to determine the cause for your cat’s loss of appetite. Based on the findings, your vet will be able to give you a clearer picture of what is going on with your cat and be able to offer you treatment options.

Try enticing your pet to eat with beef or chicken baby food that does not contain onion or garlic powder. Onion and garlic causes anemia. Warm it in the microwave for a few seconds. Stir it with your finger first to make sure there are no hot spots and that it isn’t too hot. This makes it more aromatic and appealing to your pet. Wetting dry food or mixing wet food with low sodium chicken broth, also warmed, might entice your pet to eat. Some cats like to be petted while they eat, some want to be left alone. You’ll know your cat’s habits and be able to act accordingly.

Q. Cat’s been vomiting a lot and has become very common. The vomit used to be tubular, but is now liquid. Now she’s not eating, weak, and sleeping more
ANSWER : A. Your cat’s symptoms are very concerning. Cats cannot go more than a few days without eating or they risk liver damage. Your cat needs to be seen by your vet for an exam and bloodwork to determine the cause for your cat’s loss of appetite. Based on the findings, your vet will be able to give you a clearer picture of what is going on with your cat and be able to offer you treatment options.

Try enticing your pet to eat with beef or chicken baby food that does not contain onion or garlic powder. Onion and garlic causes anemia. Warm it in the microwave for a few seconds. Stir it with your finger first to make sure there are no hot spots and that it isn’t too hot. This makes it more aromatic and appealing to your pet. Wetting dry food or mixing wet food with low sodium chicken broth, also warmed, might entice your pet to eat. Some cats like to be petted while they eat, some want to be left alone. You’ll know your cat’s habits and be able to act accordingly.

Q. Why should I buy cat food according to my cat’s life stage?
ANSWER : A. The nutritional needs for your cat vary depending on their life stage. Kittens should follow a diet that is higher in protein and calories to meet their growth requirements (without consuming excess). For adult cats, it’s important to remember that an “all life stage” cat food may seem like a good idea, but may have an adverse effect for some adult and senior cats due to excess nutrients. If you’re tempted to feed your kitten an “all life stage” food this may result in health concerns as well. “All life stage” cat food must meet or exceed requirements needed for growth and when fed to a kitten the food may have a harmful effect on their health and weight. As always, it’s best to consult a veterinarian so he or she can help you make an educated decision about what type of food is best for your cat’s individual needs.

Q. How much dry kitten food should my 16 week old kitten be eating?
ANSWER : A. It would actually be better to feed your kitten canned food, as dry food has a lot of carbohydrates. Cats are obligatory carnivores, and not carb-eaters. In order to give you an amount to feed for dry food I would need to know which food you are feeding as they are all different. I suggest you check on the cat food bag. If the bag does not give you an amount, I would not trust it to be a complete food. You should then get a food from a reputable company such as Hill’s Science diet, or similar. As for wet food feed three times daily around 2oz each time, best to feed the pate style food.