Nobody wakes up one morning and decides their cat's digestion is off. It's not like my dog Juno limping after a long trail walk. With my cat Pepper, the changes came in the litter box and at the food bowl, small enough that I told myself it was just her mood. Then I started counting the signs: three soft stools in a row, a bowl she sniffed and left, the sound of her stomach gurgling from across the room.

I did not go straight to a supplement. I called our vet, the small practice about twenty minutes from home, and she asked me to describe what I had been scooping. Then she said probiotic. She recommended Purina Pro Plan FortiFlora because it mixes into wet food without changing the taste much, so we might actually get Pepper to eat it. That was my first clue I was not dealing with a cat who would swallow a pill.

If You're Seeing Even Two of These Signs, Start Here

I keep a packet of Purina Pro Plan FortiFlora in the pantry next to Pepper's food. It is the supplement our vet told me to try first, and the one that made the biggest difference in her digestion.

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The 10 Signs I Now Watch For

1

Soft Stools That Last More Than a Day

I used to shrug off one soft pile because every cat has an off day. When Pepper had three in a row and the texture changed from firm logs to something that barely held its shape, I stopped shrugging. A daily probiotic like Purina Pro Plan FortiFlora is not medicine. It simply helps restore the balance of good bacteria in the digestive tract, which stress, a new food, or a course of antibiotics can upset. In our house, it took about ten days of one packet per day before the litter box went back to normal.

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A hand sprinkling powder from a small packet over wet food in a ceramic dish
2

More Hairballs Than the Season Explains

Pepper is a shorthair, and she still gets hairballs. What bothered me last fall was that she was coughing them up every few days even though she was not shedding much. When the digestive tract slows down, hair can sit in the stomach longer and turn into those wet clumps on the rug. I started adding Purina Pro Plan FortiFlora to her wet food while we worked through other causes with our vet. It did not stop hairballs completely, no supplement will, but it cut the frequency down to something normal.

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3

Gas With an Odor That Lingers

Cats pass gas. It happens. But when Pepper produced something that cleared the whole room several evenings a week, I decided it was not normal. Gas that smells strongly and regularly can be a sign that food is not digesting well, leaving more fermentation going on in the gut. I added half a packet of Purina Pro Plan FortiFlora to dinner. The change was not overnight. Over two or three weeks, the odor backed off, and, more importantly, her other digestive signs started to calm down too.

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4

The Sniff-And-Walk-Away Bowl

Pepper has always been a little food snob, but there is a difference between turning up her nose at a new flavor and ignoring the food she used to love. When she started walking away from canned food she normally ate within minutes, I wondered if her stomach was off. I tried warming the food and topping it with Purina Pro Plan FortiFlora. She still walked away twice, and then, after about a week of regular meals, she started cleaning her bowl again. If your cat sniffs and walks more than two meals in a row, take note of whatever else is going on.

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5

Multiple Litter Box Trips in a Single Hour

A healthy cat will use the litter box several times a day, not several times in one hour. When Pepper started going in and out three times within sixty minutes and producing only small amounts on those later trips, I started counting. Frequent trips without much output can point to a digestive system that is moving food through too quickly or not absorbing what it should. I mentioned the pattern to our vet and began a trial of Purina Pro Plan FortiFlora. It is not something to use in place of a vet visit, but it did settle Pepper's digestion enough that the hourly trips stopped.

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A relaxed adult cat resting on a couch cushion with eyes half closed
6

A Dull Coat With Visible Dandruff

I noticed this before I understood what it meant. Pepper's gray coat looked dusty, and when I brushed her, small white flakes came out onto the brush. When food is not digested well, the body may not pull the nutrients it needs from that food, and coat and skin often show the trouble first. Our vet suggested trying Purina Pro Plan FortiFlora while we looked at her diet, so I gave it every evening for a month. After about four weeks, her coat looked brighter and the flakes were much rarer. I cannot prove the probiotic did it, but the change happened while she was taking it.

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7

Stomach Noises You Can Hear Across the Room

Pepper is not a loud cat, but her stomach could be. I would be standing at the kitchen counter and hear a low gurgle coming from her spot on the sunroom rug. At first I laughed about it. Then I noticed it happened after meals and sometimes in the middle of the night, and I started to wonder if she was uncomfortable. A probiotic is not a sedative, and it does not silence a digestive system. But after about three weeks of daily FortiFlora, the rumbling became much less regular. It never vanished completely, and I did not expect it to.

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8

Accidents Right Next To the Litter Box

This is one that made me frustrated until I understood it. Pepper was not avoiding her box, she was going on the mat just outside it, as if she could not hold it long enough. I cleaned the box more often and she still chose the mat when things were loose. Digestive upset can make the box feel like an emergency and turn a clean litter box into a place she did not want to sit down. While our vet worked through the usual causes, I started FortiFlora. The accidents stopped within a couple of weeks, but a probiotic is not the first place I would go for every accident.

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9

Sleeping Curled Up In a Tight Ball Instead of Stretched Out

Cats curl up for warmth and comfort, and I do not read deep meaning into every position. But Pepper usually sleeps stretched out on her side on the back deck. When she spent a week in a tight ball, tail wrapped around her nose and paws tucked in, I began to think her stomach was aching. I talked to our vet along with the stool issue, and we added Purina Pro Plan FortiFlora to her routine. The tight ball did not disappear, but she started sprawling again on an old quilt on the couch. To me, that shift was a clue that her body was more comfortable.

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10

Hiding More Than Her Normal Alone Time

Cats hide when they are scared, tired, or simply in a mood. Pepper spends time under the bed, especially when my dog Juno walks through the hall. There is a difference between an occasional retreat and a cat who stays under the bed all afternoon and comes out only for food and the litter box. Lower energy and wanting to be left alone can pair with a stomach that is not comfortable. I did not drag her out. I gave her space, switched to a gentle feeding routine, and added FortiFlora. Within about two weeks she was back on the back deck supervising the birds.

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What I'd Skip

I want to be straight with you: a probiotic is not a cure for every cat problem. I would skip Purina Pro Plan FortiFlora entirely if your cat is vomiting repeatedly, has blood in the stool, has not eaten for more than a day, or seems genuinely painful. Those need a vet visit first, not a supplement. I would also skip it if you are not ready to give it daily for at least two weeks; a one-off packet here and there will not tell you whether it works. What I would not skip is keeping a simple log of the signs above so that you can hand your vet real information instead of a vague feeling that something is off.

For Pepper, the turning point came about three weeks in, when she stopped waking me at 4 a.m. with that rolling stomach noise and started sleeping through the night.

If This Sounds Like Your Cat, FortiFlora Is a Good Place to Start

Give it a full two weeks and jot down any change in stools, energy, and litter box trips. Your vet can help you decide if it fits your cat's bigger picture. When you are ready, the current price for Purina Pro Plan FortiFlora on Amazon is an easy way to find out.

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