Probiotic Supplement (90 chews each)

Size Guide
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Keep your dog regular and support their digestive health with Natural Dog Company’s canine Probiotic supplement chew. The Probiotic is a delicious soft treat made with a high-quality blend of prebiotics and probiotics, vitamins and natural nutrients to keep dogs’ digestive tracts healthy. Our unique formula is made with the prebiotic fructooligosaccharides (FOS) which can aid in the absorption of dietary calcium, iron, and other important minerals — along with a blend of probiotics that helps improve the digestibility of particularly tough foods.

  • Contains Fructoologosaccharides (FOS), a prebiotic, Probiotic Blend, Pumpkin, Vitamin C, Vitamin E
  • Pup-approved chicken and pumpkin flavor designed for your dog’s palate
  • Pumpkin is a good source of protein, carbs and fiber that slows digestion, may support vision health, prevents constipation and slows aging with antioxidant, beta-carotene
  • Aids in absorption of key vitamins and minerals beneficial to a mature dog’s health
  • Can help dogs with weak stomachs, bloating and flatulence issues
  • Vet-approved formula
  • Grain-free
  • GMP (Good Manufacturing Processes) Certified
  • Manufactured in the USA in FDA-certified facilities


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Size Chart

These are general sizing guidelines, all designers size differently, just like human designers.  Please review each products sizing charts to choose the correct size.

SizeBody Length (inches)Chest (inches)Neck (inches)
XXS 6-7 9.5-11 7-8.5
XS 7-7.5 11-12.5 8.5-9.5
S 8-9 12.5-14 9.5-10.5
M 9.5-10.5 14-15.5 10.5-11.5
L 11.5-12.5 15.5-17 11.5-12.5
XL 12.5-13.5 17.5-19.5 13.5-15
XXL 14-15 21-23 15-16.5

Large dog breed dog size section (40-60lbs)

SizeBody Length (inches)Chest (inches)Neck (inches)
L-S 16.5-17.5 25-26 18.5-19.5
L-M 19-20 28-29 19.75-20.5
L-L 22.5-23.5 32-33 20.5-21.5

Dachshund dog size section (long body breed)

SizeBody Length (inches)Chest (inches)Neck (inches)
D-S 11.5-12.5 15-16 9.5-10.5
D-M 13.5-14.5 16-17 10.5-11
D-L 15.5-16.5 17.5-18.5 11.5-12

How to measure

1.) The Broadest part of the chest (shown as Chest on the illustration above) For chest measurement, measure the chest at its widest point, which is typically right behind the front legs. If the dog has a large girth, going up a size in the top line measurement is always a smart choice, since some additional fabric will be used up.

2.) The Length of the backbone (shown as Back Length on the illustration above) Measuring should be done along the dog's backbone from the base of the head to the base of the tail. This is from the base of where the collar rests to where the tail is attached. The measurements you see on all our apparel indicate this top line measurement. However, it's important that the dog's girth be taken into account as well as the top line measurement.

3.) The Circumstances of the neck (shown as Neck on the illustration above) The neck size determine whether the dog will be comfortable wearing clothing. If the neck is too tight, the dog would be hard to breath. There are different sizing ranges for different types of garments, due to how binding or flexible the material used is. The most important is the chest size, so if the chest size is ok the other will not matter.