Hiya has become one of the most recognized children's vitamin brands in the US. Over 1 million families subscribe. The glass bottle, the no-sugar formula, the pediatrician backing. The brand has built real trust.
So this review is not about whether Hiya is a good product. It is. The question is whether it is the right product for what you are specifically trying to do.
This breakdown covers every ingredient in the current Hiya formula, what the doses actually mean, what is not in the formula, and how it compares to a growth-focused supplement.
How we reviewed Hiya
We pulled ingredient data directly from hiyahealth.com/pages/ingredients, cross-referenced doses against NIH Office of Dietary Supplements RDA tables, and compared K2 dosing against published osteocalcin carboxylation research. Pricing verified June 2026. This review receives no compensation from Hiya Health.
Quick Verdict
Hiya is a well-formulated general daily multivitamin for kids ages 2 and up.
- Strong B-vitamin forms: active methylcobalamin (B12) and 5-MTHF (folate)
- Zero added sugar, no artificial dyes, no gelatin, pectin-free tablet
- K2 is included as MK-7 (the right form) at 8 mcg per tablet
- Calcium is 20 mcg per serving. The brand calls it "just a touch" by design
- No magnesium, DHA, ashwagandha, L-arginine, or L-glutamine
- Best fit: parents who want clean daily nutrition for toddlers ages 2 and up
- May not be enough for parents specifically focused on growth support
At a Glance: How Hiya Scores
Based on ingredient quality, dosing accuracy, transparency, and fit for growth-focused parents.
| Category | Score | Rating |
|---|---|---|
| Ingredient quality | 9 / 10 | Active B-vitamin forms, clean additives |
| Formulation transparency | 8 / 10 | Full dose disclosure, honest formula page |
| Growth support | 4 / 10 | Low calcium, underdosed K2, no Mg or DHA |
| Value for money | 8 / 10 | $1.00/day on subscription is competitive |
| Ages 5-16 growth fit | 3 / 10 | Not designed for growth window supplementation |
What Is Hiya Health?
Hiya is a direct-to-consumer children's vitamin brand founded in 2020. The flagship product is a chewable tablet (not a gummy), sweetened with mannitol and monk fruit instead of added sugar.
The subscription model delivers refill pouches monthly. The first order includes a refillable glass bottle. At $30 per month on subscription, the cost works out to $1 per day.
Hiya has built a strong reputation on three things: no added sugar, clean ingredients, and pediatrician involvement in the formula. Those claims hold up under inspection.
Full Hiya Ingredient Breakdown
Every nutrient in the current Hiya formula, with dose, form, and what it actually does.
| Nutrient | Dose | Form | What it does | Grade |
|---|---|---|---|---|
| Vitamin D | 25 mcg (1,000 IU) | Vegan D3 (cholecalciferol) | Bone formation, immune support | Strong |
| Vitamin K2 | 8 mcg | MK-7 (menaquinone-7) | Directs calcium to bone via osteocalcin | Low dose |
| Calcium | 20 mcg | Calcium carbonate | Bone mineral density | Minimal |
| Vitamin B12 | Not disclosed | Methylcobalamin (active) | Nerve health, energy metabolism | Best form |
| Folate (B9) | Not disclosed | 5-MTHF (active folate) | Cell division, neural development | Best form |
| Zinc | 3 mg | Zinc gluconate | Immune function, wound healing | Good |
| Iodine | 50 mcg | Potassium iodide | Thyroid function | Good |
| Selenium | 15 mcg | Selenium amino acid chelate | Thyroid health, antioxidant | Good |
| Manganese | 1.5 mcg | Manganese gluconate | Metabolism, inflammation | Good |
| Magnesium | Not included | Sleep, bone co-factor, muscle recovery | Missing | |
| Omega-3 DHA | Not included | Cognitive development, inflammation | Missing | |
| Fruit/veg blend | Trace amounts | 12 organic whole foods | Phytonutrients, antioxidants | Bonus |
The K2 Dose Problem: Right Form, Low Dose
This is the most important section for parents evaluating Hiya for bone or growth support.
Hiya uses K2 as MK-7. That is the correct form. K1 is cleared from the bloodstream in hours and does not reach bone tissue. MK-7 has a three-day half-life and activates osteocalcin, the bone protein that binds calcium into bone tissue.
The dose gap: Research on K2 and osteocalcin carboxylation in pediatric populations consistently uses doses of 45 mcg MK-7 and above. Hiya's formula contains 8 mcg. That is the correct form at roughly one-fifth of the studied dose.
K2 Dose Comparison: Hiya vs. Research vs. Tallori
| Source | K2 Form | K2 Dose | Context |
|---|---|---|---|
| Hiya multivitamin | MK-7 | 8 mcg | General daily multi |
| Bone-support research minimum | MK-7 | 45 mcg | Osteocalcin carboxylation studies |
| Tallori Growth Gummies | MK-7 | Growth-support dose | Purpose-built for ages 5-18 |
This is not a reason to dismiss Hiya. It is a reason to understand what the formula is and is not designed to do. Hiya is a general multivitamin. The K2 dose reflects that purpose.
Calcium: Intentionally Minimal
Hiya's formula page describes the 20 mcg of calcium as "just a touch." That is an honest description. The NIH-recommended daily intake for calcium is 1,000 mg for ages 4 through 8, and 1,300 mg for ages 9 through 18.
Hiya's position is that children should get calcium from food (dairy, broccoli, kale) and that a multivitamin is not the right delivery mechanism for meaningful calcium doses. That is a defensible philosophy. It means Hiya is not supplementing calcium in any meaningful way.
Calcium Dose in Context
| Source | Calcium per serving | % of RDA (ages 9-18) |
|---|---|---|
| Hiya multivitamin | 20 mcg | Under 1% |
| NIH RDA (ages 9-18) | 1,300 mg | 100% |
| Tallori Growth Gummies | 300 mg | 23% of RDA |
| 1 cup whole milk | 300 mg | 23% of RDA |
What Hiya Does Not Include
For parents evaluating Hiya specifically for growth support, these omissions matter.
There is no magnesium. The pediatric RDA is 130 mg (ages 4-8) and 240 mg (ages 9-13). Magnesium supports sleep quality, muscle recovery, and works alongside calcium in bone formation.
There is no omega-3 DHA. Picky eaters who avoid fish are most likely to be DHA-deficient, and they are exactly the children parents are most likely to be supplementing.
Hiya does not include ashwagandha, L-arginine, L-glutamine, or astragalus. These are ingredients found in supplements designed specifically to support the growth window. Their absence is by design. Hiya is not a growth-specific product.
Head-to-Head: Hiya vs. Tallori Growth Gummies
This comparison is useful for parents deciding between a general daily multivitamin and a growth-focused supplement.
| Category | Hiya | Tallori Growth Gummies |
|---|---|---|
| Format | Chewable tablet | Strawberry gummy (pectin-based) |
| Added sugar | 0g (monk fruit + mannitol) | 0g (monk fruit) |
| Ages | 2+ | 5-18 |
| Vitamin K2 form | MK-7 | MK-7 |
| Vitamin K2 dose | 8 mcg | Growth-support dose |
| Calcium per serving | 20 mcg | 300 mg |
| Magnesium | Not included | Included |
| Omega-3 DHA | Not included | Algae-sourced |
| Ashwagandha | Not included | Included |
| L-Arginine | Not included | Included |
| B12 form | Methylcobalamin (active) | Standard form |
| Folate form | 5-MTHF (active) | Standard form |
| Selenium | Included | Not included |
| Iodine | Included | Not included |
| Price per day | $1.00 (subscription) | $1.00-$1.42 depending on bundle |
| Money-back guarantee | Not prominently listed | 60-day |
| Vegan / gelatin-free | Yes | Yes (pectin) |
| Purpose | General daily multivitamin | Growth-focused (ages 5-18) |
Pricing
Hiya is sold on a subscription model at $30 per month ($1 per day). The first order is sometimes discounted to $15. There is no obvious one-time purchase option promoted on the website.
Tallori Growth Gummies start at $42.49 for a single pouch (60 gummies, 30-day supply). The 3-pouch bundle brings the daily cost to around $1.07. The 6-pouch bundle is $178.50, roughly $1.00 per day. That puts it on par with Hiya at higher bundle sizes.
Who Hiya Is Right For
Hiya makes strong sense for:
- Toddlers and young children ages 2 through 4 (Tallori starts at 5)
- Parents who want a clean daily multivitamin without growth-specific goals
- Families looking for active folate and B12 forms in a kids' product
- Parents who prefer a tablet over a gummy
- Households where the refillable glass bottle aligns with sustainability values
Who Might Need Something Different
Hiya may not be the best fit for:
- Parents specifically focused on supporting growth during ages 5 through 16
- Picky eaters who also avoid dairy. The 20 mcg of calcium in Hiya does not address a calcium gap
- Parents looking for the full growth-support stack: bone minerals, DHA, and growth-specific amino acids
- Families where the child dislikes tablet textures and prefers a gummy
The core distinction: Hiya is built to support daily health for kids. Tallori is built specifically to support growth during the years when growth plates are open. Those are different design goals, and the ingredient lists reflect that difference clearly.
Bottom Line
Hiya earns its reputation as one of the cleaner children's multivitamins on the market. The B-vitamin forms are genuinely better than most competitors. The no-sugar formula is honest. The ingredient list is transparent.
Where it falls short is in the specific context of growth support. Twenty micrograms of calcium is not a bone supplement. Eight micrograms of K2 is a starting dose, not a therapeutic one. The absence of magnesium, DHA, and the growth-specific amino acids leaves a gap for parents buying with growth in mind.
If your child is between 2 and 4, or you want a daily general vitamin with no other specific goals, Hiya is a solid pick. If your child is in the growth window (ages 5 through 16) and growth is the specific goal, the formula gap is worth factoring into your decision.
Use Hiya If
- Your child is under 5 (Hiya starts at age 2)
- You want clean daily nutrition without growth-specific goals
- You prefer active B-vitamin forms (5-MTHF, methylcobalamin)
- Your child prefers tablets over gummies
Consider Tallori If
- Your child is 5-16 and growth support is the primary goal
- You want 300 mg calcium per serving alongside K2 and magnesium
- Your child is a picky eater who avoids fish, dairy, or vegetables
- You want the full growth stack: K2 MK-7, DHA, ashwagandha, L-arginine
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your pediatrician before starting any supplement.