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How much glucosamine should I give my dog?

A 50 lb dog needs about 330 mg of glucosamine a day, and Cosequin Chewable Tablets with MSM gives 600 mg for $0.26 a day ($0.53 a day for the first 6 weeks).1 For the lowest cost with the NASC seal, PetNC Natural Care Hip & Joint Soft Chews gives 500 mg for $0.19 a day ($0.38 for the first 4 to 6 weeks).

Cosequin Chewable Tablets with MSM

Best for most dogs

Cosequin Chewable Tablets with MSM

600 mg glucosamine a day1 tablet a day for a 50 lb dog$0.26 a dayfirst 6 weeks: 2 tablets, $0.53 a day2

$34.91 on Amazon
PetNC Natural Care Hip & Joint Soft Chews

Lowest cost at the guide dose, with the NASC seal

PetNC Natural Care Hip & Joint Soft Chews

500 mg glucosamine a day2 chews a day for a 50 lb dog$0.19 a dayfirst 4 to 6 weeks: 4 chews, $0.38 a dayNASC seal3

$8.49 on Amazon
Yuma's Glucosamine Hip & Joint Chews, 240 ct

Most glucosamine for the money

Yuma's Glucosamine Hip & Joint Chews, 240 ct

750 mg glucosamine a day3 chews a day for a 50 lb dog$0.27 a day4

$21.59 on Amazon

Why these three: Cosequin Chewable Tablets with MSM gives 600 mg of glucosamine (180% of the 330 mg guide) with 300 mg of chondroitin in 1 tablet a day, the lowest cost of the chews that give 600 mg or more. PetNC Natural Care Hip & Joint Soft Chews is the lowest cost of the sealed chews that reach the guide. Yuma's Glucosamine Hip & Joint Chews, 240 ct gives the most glucosamine per dollar: 2,779 mg for each $1 a day. Prices on Amazon, October 28, 2026.1, 5, 6

A yellow Labrador leaping to catch a tennis ball

Glucosamine a day, by weight

500 mg per 75 lb, scaled

25 lb dogfirst 4 to 6 weeks: 330 mg170 mg
50 lb dogfirst 4 to 6 weeks: 670 mg330 mg
75 lb dogfirst 4 to 6 weeks: 1,000 mg500 mg
100 lb dogfirst 4 to 6 weeks: 1,330 mg670 mg

Glucosamine guide: Matt Brunke, DVM, via dvm360 (2017). Labels read October 2026.

Glucosamine dose by weight

For glucosamine hydrochloride, Matt Brunke, DVM, gives 500 to 1,000 mg a day for a 75 lb dog, about 15 mg per kg at the low end, and twice that for the first 4 to 6 weeks.1 The math: 500 mg ÷ 75 lb = 6.7 mg per pound, so a 50 lb dog gets 500 × 50 ÷ 75 = 330 mg. A second veterinary page, DogCancer.com, gives 15 to 30 mg per kg a day for the first month or so, then 7.5 to 15 mg per kg.7 At 50 lb (23 kg) that is 340 mg to 680 mg to start and 170 mg to 340 mg after. The two sources split it differently: DogCancer.com's starting dose is the same as Brunke's daily dose, and its later dose is half of it.

Read the glucosamine line on the label, not the total weight of the chew or the "joint blend". Chondroitin is dosed the same as glucosamine.1 The best chews for each size are on our pages for best joint supplements for dogs: large dogs, small dogs and senior dogs. For fish oil, see how much fish oil to give a dog.

Each day = 500 to 1,000 mg for a 75 lb dog (Brunke, dvm360), scaled by weight, rounded. First 4 to 6 weeks = twice that. DogCancer.com = 15 to 30 mg per kg a day to start, then 7.5 to 15 mg per kg. Cheapest = the lowest cost a day among chews whose label dose for that weight reaches the low end, at the Amazon price read October 28, 2026.

Glucosamine per day by dog weight and the cheapest product at the low-end dose
Dog's weightEach dayFirst 4 to 6 weeksDogCancer.comCheapest at the low end
10 lb (5 kg)70 mg to 130 mg130 mg to 270 mg70 mg to 140 mg, then 30 mg to 70 mgPetNC Natural Care Hip & Joint Soft Chews: 125 mg, $0.05 a day
25 lb (11 kg)170 mg to 330 mg330 mg to 670 mg170 mg to 340 mg, then 90 mg to 170 mgPetNC Natural Care Hip & Joint Soft Chews: 250 mg, $0.09 a day
50 lb (23 kg)330 mg to 670 mg670 mg to 1,330 mg340 mg to 680 mg, then 170 mg to 340 mgPetNC Natural Care Hip & Joint Soft Chews: 500 mg, $0.19 a day
75 lb (34 kg)500 mg to 1,000 mg1,000 mg to 2,000 mg510 mg to 1,020 mg, then 260 mg to 510 mgPetNC Natural Care Hip & Joint Soft Chews: 500 mg, $0.19 a day
100 lb (45 kg)670 mg to 1,330 mg1,330 mg to 2,670 mg680 mg to 1,360 mg, then 340 mg to 680 mgPetNC Natural Care Hip & Joint Soft Chews: 750 mg, $0.28 a day

Glucosamine calculator

Type your dog's weight. You get the daily amount, then every product made for a dog that size with its own label dose and what that costs a day.

Every glucosamine chew: what a 50 lb dog gets

The glucosamine in each serving, how many servings reach 330 mg a day, what the label gives a 50 lb dog, and what that costs. Cheapest first. 8 of the 20 reach it in one serving; the other 12 take two or more. 10 more are made only for smaller or larger dogs; the calculator above shows them at the weight they are made for.

Label gives a day = the servings the label says to give a 50 lb dog, times the glucosamine in each; where a label starts higher for 4 to 6 weeks, this is the dose after that. At the start = the label's starting dose for the first weeks, where it has one. Cost = the label dose after the start, at the Amazon price read October 28, 2026.

Glucosamine for dogs: per serving, servings to reach the guide dose, label dose and cost for a 50 lb dog
ProductGlucosamine per servingTo reach 330 mgLabel gives a dayAt the startCost
PetNC Natural Care Hip & Joint Soft Chews (NASC seal)250 mg per chew1.3 chews500 mg (150% of the guide)4 chews, $0.38 a day$0.19 a day
Cosequin Chewable Tablets with MSM600 mg per tablet1 tablet or less600 mg (180% of the guide)2 tablets, $0.53 a day$0.26 a day
Yuma's Glucosamine Hip & Joint Chews, 240 ct250 mg per chew1.3 chews750 mg (225% of the guide)same$0.27 a day
Vet Promise Hip & Joint Glucosamine Chews250 mg per chew1.3 chews750 mg (225% of the guide)same$0.28 a day
Petsology Glucosamine Hip + Joint Soft Chews250 mg per chew1.3 chews750 mg (225% of the guide)same$0.29 a day
Chew + Heal Essential Hip + Joint Soft Chews250 mg per chew1.3 chews500 mg (150% of the guide)same$0.30 a day
Yuma's Glucosamine Hip & Joint Chews, 170 ct250 mg per chew1.3 chews750 mg (225% of the guide)same$0.33 a day
Cosequin Skin & Coat Soft Chews600 mg per chew1 chew or less600 mg (180% of the guide)2 chews, $0.67 a day$0.33 a day
TTLXRL Hip + Joint Chews, Glucosamine Chondroitin MSM (Chicken), 200 ct300 mg per chew1.1 chews900 mg (270% of the guide)same$0.39 a day
Dasuquin with MSM Chewable Tablets, Small/Medium Dogs600 mg per tablet1 tablet or less600 mg (180% of the guide)2 tablets, $0.87 a day$0.43 a day
StrellaLab Advanced Glucosamine Hip & Joint Chews250 mg per chew1.3 chews750 mg (225% of the guide)same$0.45 a day
Cosequin Senior Soft Chews600 mg per chew1 chew or less600 mg (180% of the guide)2 chews, $0.90 a day$0.45 a day
Amazon Basics Hip & Joint Chews100 mg per chew3.3 chews200 mg (60% of the guide)4 chews, $1.00 a day$0.50 a day
Dasuquin with MSM Soft Chews, Small/Medium Dogs600 mg per chew1 chew or less600 mg (180% of the guide)2 chews, $1.19 a day$0.60 a day
Purina Pro Plan Veterinary Supplements Joint Care, Medium/Large Dogs (NASC seal)245 mg per chew1.4 chews245 mg (74% of the guide)same$0.67 a day
NaturVet Glucosamine DS Plus Level 2 Soft Chews (NASC seal)250 mg per chew1.3 chews750 mg (225% of the guide)6 chews, $1.43 a day$0.72 a day
Pet Honesty Hemp Hip + Joint Health Senior Soft Chews (Chicken) (NASC seal)400 mg per chew1 chew or less800 mg (240% of the guide)same$0.96 a day
Greenies Supplements Hip & Joint Soft Chews, Chicken Flavor (NASC seal)500 mg per chew1 chew or less1,000 mg (300% of the guide)same$1.13 a day
PetLab Co. Joint Care Chews (NASC seal)600 mg per chew1 chew or less600 mg (180% of the guide)same$1.20 a day
Chew + Heal Senior Hip + Joint Advanced Soft Chews200 mg per chew1.7 chews600 mg (180% of the guide)6 chews, $2.50 a day$1.25 a day

Source: Each brand's label; Amazon prices read October 28, 20261, 5

What the research says

One trial of 35 dogs with hip or elbow osteoarthritis found that glucosamine plus chondroitin improved pain scores, severity and weight-bearing by day 70.1 A 2022 review of arthritis trials in dogs and cats counted 9 trials of glucosamine and chondroitin products, 8 with no effect and one with improvement, and 20 omega-3 trials, with only 2 finding no benefit.8 For the omega-3 dose, see how much fish oil to give a dog.

Questions people ask

How much glucosamine should I give my dog by weight?
One vet's guide is 500 to 1,000 mg a day for a 75 lb dog. Using the low end and scaling by weight, that is about 170 mg for 25 lb, 330 mg for 50 lb, 500 mg for 75 lb and 670 mg for 100 lb, with twice that for the first 4 to 6 weeks.
How much glucosamine for dogs per pound?
About 6.7 mg per pound a day at the low end of the guide (13.3 mg per pound at the top), and twice that for the first 4 to 6 weeks.
How much glucosamine per kg for dogs?
The vet guide works out to about 15 mg per kg a day at the low end. DogCancer.com gives 15 to 30 mg per kg a day for the first month or so, then 7.5 to 15 mg per kg.
How much glucosamine for a small dog?
A 10 lb dog gets about 70 mg to 130 mg a day. See our page on small dogs.
How much glucosamine for a large dog?
A 100 lb dog gets about 670 mg to 1,330 mg a day. See our page on large dogs.
How much glucosamine and chondroitin for dogs?
Chondroitin is dosed the same as glucosamine, so a 50 lb dog gets about 330 mg of each a day. Cosequin Chewable Tablets with MSM gives 600 mg of glucosamine and 300 mg of chondroitin for $0.26 a day.

Notes and sources

  • Glucosamine per serving and the dose by weight come from each brand's label, read October 2026. See how we do the math.
  • The glucosamine amounts are for glucosamine hydrochloride, which is what the vet guide covers; labels that print sulfate or another form are shown as printed.
  • How we pick: Cosequin Chewable Tablets with MSM is the lowest cost of the chews that give 600 mg or more of glucosamine a day (the same rule as our joint supplement page); PetNC Natural Care Hip & Joint Soft Chews is the cheapest chew from a maker with the NASC Quality Seal that reaches the 330 mg guide; Yuma's Glucosamine Hip & Joint Chews, 240 ct gives the most glucosamine a day per dollar.
  • The NASC Quality Seal is from NASC's own member list.
  • Product photos come from Amazon.
  • Prices checked on Amazon October 28, 2026. Published .

Sources

  1. Wooten SJ (DVM), "Joint supplements for dogs: The helpful vs. the hype," dvm360, June 16, 2017 (from Matt Brunke, DVM: glucosamine hydrochloride maintenance 500 to 1,000 mg for a 75 lb dog, "about 15 mg/kg", and twice that for the first 4 to 6 weeks; a 35-dog glucosamine and chondroitin trial that improved by day 70), read October 28, 2026.
  2. Nutramax label: Cosequin Joint, Chewable Tablets, read October 2026.
  3. PetNC Natural Care label: Hip & Joint Soft Chews (Liver Flavor), read October 2026.
  4. Yuma's label: Glucosamine Hip & Joint Chews, read October 2026.
  5. Prices: Amazon product data, read October 28, 2026. Cost per serving = listing price divided by the servings in the container.
  6. National Animal Supplement Council, member list, read October 28, 2026.
  7. Carmine C (DVM), Miceli R (PhD), reviewed by Talesnick L (DVM) and Britton B (DVM, DACVIM), "Glucosamine for Dogs," DogCancer.com, January 24, 2024 (15 to 30 mg per kg a day to start, 7.5 to 15 mg per kg after about a month), read October 28, 2026.
  8. Barbeau-Grégoire M, Otis C, Cournoyer A, Moreau M, Lussier B, Troncy E, "A 2022 Systematic Review and Meta-Analysis of Enriched Therapeutic Diets and Nutraceuticals in Canine and Feline Osteoarthritis," International Journal of Molecular Sciences, 2022 (Université de Montréal), read October 28, 2026.

Labels for the products in the tables