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Clinically Studied Formula

Human Strain Vitalis

Clinical-grade prebiotic & bioactive vitamin blend in pomegranate grape daily packets. A 30-day supply designed to support normal gut barrier function, the microbiome, and digestive resilience.

What’s inside

  • 3,834 mg Vital Gut BlendOat bran, acacia gum, L-tryptophan, and R-lipoic acid.
  • Fiber + targeted nutrientsIncludes vitamin K and B vitamins.
  • Targeted daily supportDesigned to support normal gut barrier function, the microbiome, and digestive resilience.
  • Clear daily packet formatOne packet daily, as directed on the label.
  • 30-day supply30 packets per container.
$69.99

How subscription works

  • Delivered on your selected schedule
  • Save 10% on recurring orders
  • Manage or cancel anytime

One-time order

A single shipment, with no recurring delivery.

Select the option that fits your routine.

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Supplement facts

Serving size: 1 packet (approx. 5.7 g) · Servings per container: 30

Dietary fiber: 1 g. Vital Gut Blend Four: 3,834 mg of Avena sativa bran and INAVEA® (acacia gum, L-tryptophan, and R-lipoic acid).

Vitamins and nutrients: vitamin K, thiamin, niacin, vitamin B6, folate, biotin, pantothenic acid, and sodium.

† Daily Value not established for the Vital Gut Blend Four.

Ingredients & allergy advice
Vitalis contains Avena sativa bran, acacia gum, L-tryptophan, R-lipoic acid, vitamins, and other ingredients including natural flavor, malic acid, citric acid, stevia leaf extract, silica, and grape skin extract for color. This formula contains vitamin K; if you take warfarin or another vitamin K-antagonist anticoagulant, consult your healthcare professional before use. Review the product label before use if you have questions about ingredients or allergens.
How to take
Open one packet daily in 8–10 oz of water. Use consistently for 2+ months for best results.
What to expect
Human Strain products are designed for everyday routine support. Individual experiences vary; consistency and following the label directions matter.
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Formula design

A clear formula for a consistent routine.

Every Human Strain product is designed as a straightforward daily routine, with its ingredients and format presented clearly.

We make it easy to understand the formula, use it as directed, and decide whether it fits your routine.

Human-strain foundation.

Formula design begins with carefully selected Bifidobacterium strains and an ingredient rationale that is easy to review.

Formula transparency.

Product pages and labels present the ingredients, product format, and support information without unnecessary noise.

Built for a daily routine.

Use as directed on the label as part of a consistent daily routine that works for you.

Give your routine a stronger foundation.

A prebiotic formula designed to pair naturally with a consistent daily microbiome routine.

  • Prebiotic ingredients in one daily formula.
  • Fiber and vitamins presented clearly on the label.
  • Easy to include alongside your routine.
Human Strain Vitalis
Hand holding one daily prebiotic packet

Your daily format

As easy as 1 daily packet.

Mix one packet as directed and make it part of the daily routine that works for you.

For serving details and ingredients, refer to the product label.

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