Under the Weather Ready Cal Powder for Cats | High-Calorie Weight Gainer & Appetite Stimulant | Cat Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals | Chicken Flavor
$21.99





Price: $21.99
(as of Nov 07, 2025 14:34:56 UTC – Details)
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Product Dimensions : 3.57 x 3.65 x 4.24 inches; 7.37 ounces
Item model number : Under the Weather
Date First Available : February 10, 2025
Manufacturer : undertheweatherpet
ASIN : B0DWP3FNSJ
Best Sellers Rank: #4,671 in Pet Supplies (See Top 100 in Pet Supplies) #11 in Cat Multivitamins
Customer Reviews: 4.0 4.0 out of 5 stars 316 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
“BOOSTS HEALTHY WEIGHT GAIN Specially formulated to help cats with poor appetites regain essential calories. Whether your feline friend is recovering from illness, dealing with stress, or just needs extra support, this supplement helps prevent weight loss while encouraging healthy weight gain with only 1-2 scoops a day. Shelf life: 24 months from manufacturing date. EXP date printed on back of product label as EXP MM/YY.”
STIMULATES APPETITE: When your cat isn’t getting proper nutrition due to reasons such as illness or medical procedures, this nutritional supplement powder will help restore your kitty’s appetite to keep them healthy and strong for the years to come.
ENERGY BOOSTER: Packed with Essential Nutrients, each serving contains 20 calories, 9 essential vitamins, and 6 vital minerals to boost energy, strengthen immunity, and improve overall health. Its carefully crafted formula is designed to support underweight cats, seniors, and kittens alike.
THE BEST FOR YOUR CAT: Ready Cal for Cats is vet-formulated to provide the essential calories your cat needs daily to gain or maintain a healthy weight. With a savory rotisserie chicken flavor cats love to promote weight gain. Proudly manufactured in the USA without artificial flavors or dyes.
Customers say
Customers find the cat supplement helps with appetite and weight gain, with one noting it’s formulated specifically for feline nutrition. The product mixes well with food and customers like its taste, with one mentioning it provides iron and vitamins. While some customers report their cats eat it well, others say their cats won’t touch it, and opinions on value for money are mixed, with some finding it worth trying while others consider it a waste of money.
8 reviews for Under the Weather Ready Cal Powder for Cats | High-Calorie Weight Gainer & Appetite Stimulant | Cat Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals | Chicken Flavor
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$21.99


Cole S –
Effective and easy way to help my cat gain weight
I’ve been using this product for a few weeks now, and I’m really impressed with the results. My cat had been underweight and struggling to maintain a healthy weight, but since starting this supplement, I’ve noticed a steady, healthy increase in her weight. She seems more energetic, playful, and overall healthier.The product itself is easy to use — it mixes well with food, and my cat doesn’t mind the taste at all. I appreciate that it’s formulated specifically for feline nutrition, so I feel confident giving it to her daily. The instructions are clear, and the recommended serving sizes make it simple to monitor progress without overfeeding.Overall, this has been a game-changer for my cat. It’s helping her regain weight safely and steadily, and I feel good knowing I’m supporting her health in a manageable way. I highly recommend this to anyone whose cat needs a little help gaining weight or improving overall nutrition.
Stephanie N –
Great addition to your pet’s food!
I got this for a 7 month old kitten who seemed to lack interest in food and wasn’t at a healthy weight. I tried all kinds of food, treats, supplements, etc. but he just wasn’t interested. He was healthy, vet checked, and playful just skinny. I finally saw this and decided it was worth a try and amazingly, he LOVED it mixed with his canned food! Within a couple of days he was cleaning his dish after every meal and by the end of the month he was up to a good weight, his coat was getting shiny, and he just looked ‘brighter’. I’ve been adding some to the wet food of a couple young females and their coats are already looking so much better. I hadn’t thought they looked bad before but they look gorgeous now.
HonestlyHonestChic –
My elderly dog likes this flavor and eats it well but…
My elderly dog really likes this flavor. I feel like it has boosted his appetite substantially, but it really hasn’t helped him gain any weight. I’m doing the recommended scoops a day and I haven’t really seen a significant weight gain at all, but it encourages him to eat so I guess it’s a win. He’s a 17-year-old pitbull.
Kimberly Baum –
No seal to break
There was no kind of seal on this container when I got it . I expected to take lid off and then their be a seal and there was none . I don’t trust even giving it to my cat now
ShineWithJoy –
Good cat supplement!!
I have an elderly cat with hyperthyroidism that is extremely thin despite high quality canned and dry cat food . I give him chicken baby food because it is easy for him to eat, however the baby food doesn’t have all the vitamins he needs, so I mix one scoop of this into it! I love that it provides iron and vitamins. He really loves it! And it’s helping him maintain weight!
Customer B –
Good ingredients, but I have finicky cats.
Looks good, but my finicky cats won’t eat it, so…that’s just us.
Pam Glatczak –
Good product for older cats or sick cats who need to eat.
I used this for a cat who was losing weight. She really liked it. Unfortunately she has passed away, but it helped get food into her. The other cats were always wanting to eat it!
ParamedTX –
My cat is addicted to it!
My cat had to have all of his teeth pulled due to stomatitis. He just couldn’t eat enough wet food to keep up his weight. This powder was a miracle! He loves the taste and most importantly he’s back up to his healthy weight. He eats better now, but he still insists I sprinkle a little of this over his food for flavor. 😆