Why Ours Is the BEST.

As cold and flu season ramps up with schools in full swing,

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October 2, 2025 10:46am EDT

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Z-Family–

As cold and flu season ramps up with school in full swing, parents, grandparents and caregivers are reaching for immune-supporting supplements to give their children.

But when they flip the bottle and take a closer look at the label, they may (or may not!) notice that the necessary serving sizes and 'must have' ingredients...are MINIMAL or MISSING.

Yes! Parents across the USA are getting quite frankly, RIPPED OFF, with tiny servings of vitamin D. Almost no zinc. And zero quercetin—one of the most important nutrients for immune defense.

In fact, most kosher children’s gummies offer only a fraction of the immune-supporting nutrients found in Dr Zelenko's original Kids Z-Stack:

Up to 90% less vitamin D3
Up to 88% less zinc
Up to 90% less vitamin C
And none include a zinc ionophore like quercetin!

Dr Zelenko's common saying in his many interviews was, 'Zinc is the bullet. Quercetin is the gun'. This is because quercetin helps move zinc INTO the cells where it is needed most.

And Kids Z-Stack gummies are the only kosher-certified formula designed around the Zelenko Protocol—delivering high-potency vitamin C, vitamin D3, zinc, and quercetin.

This is why Kids Z-Stack gummies continue to be a top-selling kid-approved favorite with two serving sizes for ages 3 and 4+ in two delicious flavors: original pineapple and fruit punch.

It is also why Dr Zelenko's young children continue to take these daily!

Each serving includes:

200mg of vitamin C – Over 6x the amount found in many children’s gummies
50mcg (2000 IU) of vitamin D3 – 5 to 10 times more than typical children’s formulas
12mg of zinc – Over 2x to 8x higher than standard brands
200mg of quercetin – to help zinc reach where it’s needed most... inside the cells!

Kosher Certified. GMP Certified. Gluten-Free. And Made in the USA.

Get your Kids Z-Stack today!

VIEW DR ZELENKO'S COLLECTION

Look after yourself!

-Your Z-Family

Z-Products™ are Kosher Certified, GMP Certified, Gluten Free and Made in the USA. Free shipping within the USA. International shipping available. Thank you for your support in helping us to carry on Dr Zelenko's legacy.

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Need Help Placing Your Order? Have Questions? Call our Customer Service Team at: 1-800-ZELENKO (1-800-935-3656). Monday to Friday | 9:00am-5:00 pm EST.

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Why Ours Is the BEST.

As cold and flu season ramps up with schools in full swing,

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