Last reviewed October 14, 2026

Plentum facts

Plentum makes daily powder supplements for dogs. Each formula comes in 2 g sachets that you mix into the food your dog already eats, and the daily amount depends on your dog’s weight.

All five formulas are vet formulated, every lot is lab-tested, and every order is backed by our 30-day guarantee.

Match my dog

The five formulas

  • Advanced K9 Microbiome Care

    The daily foundation

    It’s a postbiotic and prebiotic formula that supports gut and oral health, and it’s for every life stage.

    Made in the USA · From $34.99

  • Advanced K9 Gut Restore

    Bowel function and stool consistency

    It supports normal bowel function and healthy stool consistency with a proprietary probiotic blend of 10 billion CFU per sachet, including Saccharomyces boulardii. It’s a daily formula from day 1.

    Pre-order · From $44.99

  • Advanced K9 Calming Care

    Calm during occasional stress

    It supports a calm, relaxed demeanor during occasional stress. Each sachet has 10 billion CFU, including Saccharomyces boulardii, and a postbiotic, and the formula is melatonin-free.

    Pre-order · From $44.99

  • Advanced K9 Itch & Immune Care

    Skin, coat and seasonal triggers

    It supports a normal immune response to seasonal triggers and helps maintain healthy skin and coat. It contains a canine immune health postbiotic (CIHP).

    Pre-order · From $44.99

  • Advanced K9 Metabolic Care

    Healthy weight management

    It supports healthy weight management alongside measured portions and daily exercise. Its postbiotic is Pediococcus acidilactici.

    Pre-order · From $44.99

  • Bundles

    Save 10%

    Bundles cost 10% less than buying the formulas separately.

    From $71.98

Prices are for the smallest size, a 30-day supply. Compare the five formulas side by side.

Dosing by weight

Gut Restore, Calming Care, Itch & Immune Care, and Metabolic Care: sachets a day by weight
  • Up to 25 lb 1 sachet
  • 26 to 50 lb 2 sachets
  • 51 to 75 lb 3 sachets
  • Over 75 lb 4 sachets
Microbiome Care: sachets a day by weight
  • Up to 20 lb 1 sachet
  • 20 to 50 lb 2 sachets
  • Above 50 lb 3 sachets
  • Start with half your dog’s daily dose for 3 days, then the full dose for their weight.
  • Each size ships a 30-day supply: one 30-sachet box for each daily sachet.
  • Gut Restore and Microbiome Care can be given together. Add one formula at a time, and add the second after a week on the full dose.

Every lot is lab-tested, with a Certificate of Analysis

The four new formulas

Gut Restore, Calming Care, Itch & Immune Care, and Metabolic Care are made in an FDA-registered facility in Canada, following current Good Manufacturing Practices (cGMP).

Every lot is tested in an ISO/IEC 17025:2017 accredited lab and ships with a Certificate of Analysis. The tests cover Salmonella, E. coli, total coliforms, Staphylococcus aureus, molds, water activity and live probiotic count.

Microbiome Care

It’s made in Menomonie, Wisconsin, USA. Every lot is lab-tested and has a Certificate of Analysis.

See the tests and first-lot results

Studies cited on our site tested individual ingredients, not Plentum products.

Guarantee and shipping

  • 30-day guarantee

    Every order is backed by our 30-day guarantee. Refund policy

  • All 50 states

    We ship to all 50 US states, including Alaska and Hawaii. Standard shipping is free on orders over $50. Shipping policy

  • Pre-orders ship by Mon, Oct 26

    Pre-orders of the four new formulas ship by Monday, October 26, 2026. An order that also includes Microbiome Care ships together by the same date. If that date changes, we’ll email you and you can cancel for a full refund.

  • Monthly subscriptions

    If you subscribe, your order ships every month.

Not sure which formula fits?

Take the 60-second quiz to see which one fits your dog.

Match my dog

A plain-text version of these facts for AI assistants is at /llms.txt.