r/dechonkers Jun 05 '26

Dechonkin The Big Fat Guide to Dechonking!

63 Upvotes

Hi all! I’m a vet nurse that is passionate about weight in animals. I run my own weight loss program for my patients in my clinic and thought I would spread the love by sharing my dechonking guide to help all of you hardworking pawrents!

**BEFORE DECHONKING it is advised that you have a general health check with your veterinarian to rule out any health issues and to ensure that your pet is healthy enough to undergo a dechonking program*\*

**This dechonk guide is not a replacement for veterinary care or advice *\*

What is an Ideal Weight in Animals?

The most accurate way to ascertain an ideal weight is by use of a Body Condition Score (BCS) chart.

At ideal weight your dog or cat should look like an hourglass when viewed from the top. Their abdomen should tuck into their legs when viewed from the side. You should be able to feel their ribs - the way that this feels is like the back of your hand.

You should make a note of your animal's BCS and their number weight before starting a weight loss program.

How to Dechonk Your Chonker

The key to weight loss in animals is diet. Exercise counts for very little in weight loss, much like in humans.

Step One: Use a Calorie Calculator to calculate your animal’s daily caloric allowance.

You will need to know their BCS and their weight to use the calculator. You can ask your local vet to weigh and assess your animal if you are unsure.

Step Two: Calculate the calorie content of ALL the foods you are feeding your animal.

You then need to find out the calorie content of everything you are feeding your animal. Calorie counts can typically be found on the back of the package of commercial foods. If you cannot find the calorie content, a calorie content calculator can help you work it out.

If feeding raw or homemade, you will have to input/search the ingredients for their calorie content much like you would if you were on a human diet!

Step Three: Make a Meal/Diet Plan based on the calorie allowance

You then need to calculate how much to feed based on the calorie content of the food you are feeding. If you are feeding a mixed diet (eg commercial dry and commercial wet food) you'll need to think about what ratios you would like to feed your animal and calculate appropriately.

When your animal reaches ideal weight, it is a good idea to plug in their stats again so you can get a calorie count for maintenance and not for loss. I also recommend a weigh in every two weeks and then monthly to assess progress, and to monitor their body for any changes against the BCS chart as they progress!

Example: Garfield is an 8kg/17lb cat with a BCS of 8/9. His estimated ideal weight is 5.6kg/12lb and his calorie allowance is 201 calories per day to achieve this.

He is fed dry food (Taste of the Wild) and wet food (Fancy Feast).

Taste of the Wild is 3741 kcal/kg therefore 3.7 kcal/g.

One tin of Fancy Feast is 71 calories.

We can feed one tin of Fancy Feast (71 cal) and 35 grams (130 kcal) of Taste of the Wild daily.

When he reaches ideal weight, the calculator suggests that he can maintain on 255 calories, so he will need a reassessment of his diet when he reaches ideal body condition and weight.

Strategies to Help with Dechonking

Dietary & Feeding Recommendations

  • Prescription 'diet' or 'metabolic' food can be helpful for weight loss but is not a strict necessity. Prescription (dry) food tends to be calorically lower than regular commercial dry foods (which in and of themselves are extremely calorie dense) which means you can feed a larger volume-to-calorie ratio. BUT you DO need to be careful that you still adhere to a calorie allowance and measure the food out every time.
    • I would take a pass on diet/metabolic WET foods as commercial wet food is already quite low in calories and shouldn’t make a significant difference in terms of weight management or volume for calorie ratio.
    • If you don't have systems in place to control the intake of food, your pet will still get fat on metabolic food. Metabolic food is expensive and if it doesn't make a difference then you might as well go back to your regular food. Simply getting a low calorie food but sticking to the same old habits is not enough. Learning to properly portion food, limiting access to situations where your animal could gorge, controlling and mitigating for begging, providing enrichment and teaching the animal a ‘new normal’ of an appropriate volume of food are the foundations of good weight loss and weight management.
  • Commercial dry food is MUCH higher in calories than wet food. Feeding more wet food and reducing dry food can assist in weight loss and keep your animal satiated.
  • Invest in an automatic feeder for cats. An automatic feeder (set somewhere away from you/your bedroom!) can do wonders as the cats will bother the feeder for food, and not you.
  • Keep cats indoors. Outdoor cats tend to get fed by well meaning strangers! If unable to keep your cat indoors, invest in a (breakaway) collar with a tag that specifies they're on a special diet/not to be fed.
  • Healthy low calorie treats for DOGS are veggies such as carrot & zucchini. You can replace their normal treats with pieces of carrot or zucchini or other safe, low calorie fruit and vegetables.
  • Healthy low calorie treats for CATS are wet food puree type treats in a tube. Inaba Churu treats are 6 calories per tube. Fancy Feast Puree Kiss treats are 4 calories per tube. Applaws Puree Treats are 2 calories per tube.

Mental Stimulation & Enrichment

  • Invest in puzzle toys, slow feeders, food dispensing toys to moderate feeding. This will keep your pet enriched, mentally stimulated and busy while slowing down their rate of eating, which is good for pets that guzzle their food then ask for more. Frozen wet food in a Kong or Toppl is one of the best low-calorie ways you can use food for dogs to promote mental enrichment and weight loss. You can even just freeze wet food and kibble in their bowl and it will provide more stimulation than just feeding them out of it.
  • Invest in enrichment as a reward for your animal, not food. This can be playtime, pats, or trick training to keep them occupied and to redirect begging!
  • Redirect & replace begging behaviour by trick training. Most begging behaviours have been inadvertantly reinforced by you - if you have always given your cat food when it screamed at you, that's what you have trained your cat to do. Food motivated dogs can be easily trained to work for food, and yes cats can be trained too!

Multi Pet Households


r/dechonkers 4h ago

Dechonkin Beginning his journey

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58 Upvotes

Doctor said -600 grams. Time for a diet!!


r/dechonkers 1d ago

10 months dechonked (1 pound to go!)

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2.4k Upvotes

Steven (5 years old) weighed 16 pounds last November. He is down to 13 pounds and still has a pound to go. I wanted to share his progress. I am so proud of my son 🥺


r/dechonkers 2d ago

Is he starting to become a chonk or is this just belly rolls?

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979 Upvotes

I feed him the recommended portion but the dogs bring him their food. (I'm not joking I think they're "scared" of him 🤣)


r/dechonkers 1d ago

Is she getting too chonky??

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182 Upvotes

Say hi to Beatrix! She's 3 yrs old and she has a big ol' primordial pouch since she had a litter before she was adopted. However, I feel like she's getting chonkier recently and I'm worried she's getting toooo chonky :c


r/dechonkers 20h ago

Dechonkin Automatic feeder dispenses too much

2 Upvotes

Working on trying to dechonk one of my cats. I already have a PetLibro automatic feeder, but can only do 2 servings because it dispenses way too much. I want to be able to do 4 very small servings throughout the day.

Has anyone found a way to make it do less? It’s already on the smallest portion but it’s still too much


r/dechonkers 2d ago

Healthy Lad Just over a year after adoption, Queenie has gone from 13+ pounds to 10.6 pounds

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329 Upvotes

She just had a weigh-in at the dermatologist (she's had some allergy issues, which made fine-tuning her diet extra fun) and was certified dechonk. Photos are from adoption day, July of last year, and July of this year, when she was kind enough to strike the exact same pose for a comparison photo.


r/dechonkers 1d ago

Advice for dechonking one cat when you have 2 casual eaters

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31 Upvotes

Hey there! I have two lovely boy cats and one is very healthy while the other is very much a chonk. They have an auto feeder that dispenses 1/2 cup of dry food into two bowls and I feed them a full can of wet food in two feedings. They will run excitedly when I prepare the food, but often will waltz away and come back to eat. The small cat eats very minimal at a time but will come back to eat more at another time.

It is very hard to feed them separately wheny small cat won't eat his food in one sitting. I usually have to leave food out to ensure small cat gets enough food. Advice appreciated!

I have considered the microchip feeders but unfortunately cannot afford their large price tag right now. If there are any other ideas I would love to hear them!


r/dechonkers 2d ago

Discussion Is it normal for cat's metabolism to slow down around 7 or because of a diet?

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68 Upvotes

My guy has been on a diet for about a year and a half, he lost some weight at first, then stopped so I lowered his portions more. The past few months have been hectic so I wasn't paying attention to weighing him, but he's looking quite chubby again, eating less than he ever has.

Is this worth a vet visit, or just the result of middle age/ dieting slowing his metabolism?


r/dechonkers 2d ago

Discussion How many times does a cat need to eat?

10 Upvotes

Trying to dechonk my senior cat she usually eats 3 times a day (got her some senior purina food) but I’m sure it’s not a good amount. I’ve tried an automatic feeder in the past and it didn’t work, is there a scoop somewhere for a proper portion servings too? Thanks


r/dechonkers 2d ago

Discussion I love my selfish entitled baby

9 Upvotes

He had his yearly check up and everything is fine except hes overweight.

My selfish entitled baby boy would eat all his food, then push the other cats away to eat their food. He got overweight. So now im feeding the other 2 in a separate room, and the selfish baby boy is pooping on the floor when he NEVER did that before.

Hes on the diet. Its happening. But he is NOT happy about it.

How can i stop this???


r/dechonkers 3d ago

Progress We gave our Ragdoll (boy- 3 yrs) metabolic catfood and he got heavier. Why??

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700 Upvotes

Before he got put on diet he weighed 7.6 kg and a couple weeks later he weighed 7.7 kg and he gets 42 grams of dry food a day and 85 grams off wet food daily (half a can in the morning and the rest in the evening). The food was recommended by our vet


r/dechonkers 2d ago

Tootsie ate nothing while I was at work

5 Upvotes

Tried giving her like 4 kinds of wet food. She would nibble at bit and then walk away.

Spent the most time with Turkey baby food. I added water and she lapped up most of the water but left the solid matter.

She even turned away from.the Friskies she was eagerly consuming before I left for work around 2.

Got home around 1030 to 11. She touched none of the dry or the treats either.

Shes going into that leave me alone mode.

Should i be worried.

Her weight dropped from 11.1 to 10.75.

I feel so helpless.


r/dechonkers 2d ago

Alfie, part 2! My boy is just over 23lbs. (Ben and Jerry's for scale) His weight indicates chonker, is dechonking needed?

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82 Upvotes

r/dechonkers 2d ago

Meet my boy, Aflie. He's got some chonk in him

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88 Upvotes

r/dechonkers 2d ago

Does my cat need dechonking? He is a 11 months old and plays a lot, but not allowed to go outside.

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27 Upvotes

r/dechonkers 3d ago

Dechonkin Anyone else on the rollercoaster?

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45 Upvotes

Ripley started his dechonk 10 months ago. He dropped 1 1/2 pounds in 6 months (with a lot of up and down), then bounced up a half pound and is now back to his lowest point at 15.25 pounds. Vet is okay with him at 15-15.5, as he is naturally a very big boi. I’m keeping him around 175 calories a day on Royal Canin Satiety Support wet food and treats. I just don’t understand why his weight bounces around so much. He gets no hard food, except for the diet treats, because he is a kibble junkie. All meals have to be supervised, because he will inhale his food and try to shove his sister away from hers before she’s done. Clearly he thinks he is skin and bones right now.


r/dechonkers 3d ago

Dechonkin Too much chonk?

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357 Upvotes

My girl weighs 12 lbs and turned 12 this summer. I can’t tell if she’s actually overweight or just built like a fluffy throw pillow. Overall she’s a very happy cat and is so cuddly, just loves food lol. She moves around easily and has been about this size her whole life, but I want her to stay healthy and live as long as possible while still being happy. Would a dechonking journey be worth discussing with her vet?


r/dechonkers 4d ago

Progress Still in progress but the difference is noticeable!

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1.1k Upvotes

The first picture is from October, when Yoda was I think around 15 lbs. I took his weight a few weeks ago (around when the second picture was taken) and he measured out to 11.5 lbs!

The steps I took were 1) Getting him an auto feeder, 2) gradually over months reducing the portion sizes, now at 50g daily. and 3) leash training him, and taking him for daily walks around the hallways of our apartment complex.

I'm so proud of him (and me!).


r/dechonkers 4d ago

Discussion Does he need to dechonk?

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51 Upvotes

Hey y’all! This is my cat August- he’s around 3 or 4 and is 16 lbs.. I got him from a humane society, but I’m pretty sure he’s a Russian blue? Anyways- I’m wondering if he needs to go on a diet. I think he does, but it’s kinda difficult because I have a 3 to 5 kitty household.. (1 strictly in an attic apt, 3 on my floor, and 1 downstairs that sometimes comes to the second floor).
Meal time can be challenging because I have my two older cats, October and August, share one bowl of food at 9am, 7pm, and a half a bowl at around 12pmish. I switched to them eating from a single bowl bc August would always finish his bowl and go to push her away from hers and eat it too. She doesn’t eat nearly as much, but I feel like since switching to a single bowl he leaves some for her & she also takes turns with him when they’re both eating. - I also have a new kitten and we haven’t quite got feeding down for all of em because my October tries to eat his kitten food sometimes.
Do y’all have any suggestions that could maybe help me out? I really want microchip feeders, but can’t afford them atm, and can’t really supervise mealtime because of my work schedule. I also try to play with them all, but August gets pretty tired out quickly/isn’t nearly as interested in playing. I do have a vet apt upcoming and was also wondering if there’s any tests I should specifically ask for just in case he has something health related as to why he is a bit chonky!
Thank you for any advice & enjoy some pictures of him! He’s funky!


r/dechonkers 4d ago

Dechonkin help with calorie calculation?

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40 Upvotes

I apologize if this is redundant- (Ive read the pinned post many times!) but Im really having trouble coming up with a number. Every calculator gives slightly different numbers based on the same data. My big boy squid weighed in at 17.4lbs and 7/8 bcs at the vet and was recommended 15lb as a starting weight goal, but I was given very little information on how to get him there (I was basically told read the side of the food bag.) He currently eats ~300cal per day between wet & dry (setting up a timed feeder as we speak for more accurate portioning!) I was planning to reduce him to 275, but some sites recommend as low as 230. Any advice would be greatly appreciated, I just want to do right by my boy!!


r/dechonkers 5d ago

Discussion Question :(

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487 Upvotes

hey… so i need some tips on how can I put him on a diet? I dont want him to end up like those big huge cats that can’t walk or clean themsleves anymore :(

we had been trying and trying and trying and he just WONT LISTEN. anyone have any advice?

This is Milo. He is 30 pounds. And he is 5 and already running the house. He never shuts up. Follows me to the bathroom. And everything.

also. stop calling me an abuser. my mom is the one who is doing this shit.


r/dechonkers 4d ago

Dechonkin how to help my cat lose weight ?

1 Upvotes

one of my cats is overweight and we have tried everything to help her lose it but she constantly just eats from our others cats bowl. does anyone have any tips on how to put a cat on a diet or stop her from stealing from the other cat?
i was thinking of keeping their bowls in separate rooms but im afraid she might just keep going back and forth


r/dechonkers 4d ago

Dechonkin My cat is getting FAT

2 Upvotes

My 2 yr old kitty is getting fat! She has hip dysplasia so i want to make sure she’s a healthier weight! But she has such a sensitive tummy and gets backed up really easy. I’ve been feeding her purina sensitive skin and stomach and wet blue buffalo food and those have seemed to work well for her. But i’m not sure if i should try a diet food? Or would measuring her food more precisely help? because i could accidentally be over feeding her, she’s not super lazy.


r/dechonkers 5d ago

Dechonkin my chonk cat before and after dieting

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395 Upvotes