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Preferred by 800,000+ Families Worldwide
The Science–Driven Gummy Vitamin That's Redefining Kids' Nutrition
Packed with 12 superfoods and 9 essential vitamins, our kids' multi helps fill critical nutrient gaps to support balanced behavior, stable moods, healthy sleep and optimal development.*
5,000+ Reviews
45 Day Money-Back Guarantee¹
“My son was a picky eater and finding a way to get his nutrients was a struggle. He would act out and have difficulty listening. Now, not only has his attitude changed, but he is also eating better!”
The First Day Impact
The First Day Impact
Target 6 Symptoms of Nutrient Deficiencies
with Just 2 Daily Gummies
Target 6 Symptoms of Nutrient Deficiencies with Just 2 Daily Gummies
Unstable Moods
Vitamin B6 and Vitamin B1 play a key role in brain health and emotional balance, helping to stabilize moods and reduce irritability in kids.*
Difficulty Concentrating
With Vitamin B2 for focus support and Vitamin B1 for brain health, these gummies help kids stay focused and attentive, supporting cognitive function and clarity.*
Sugar Cravings
Vitamin C and Vitamin B6 contribute to balanced energy levels, which can help reduce the body’s cravings for quick energy sources like sugar.*
Weakened Immune System
Vitamin C and Vitamin D3 are essential for a strong immune system, providing the nutrients kids need to defend against common colds and other illnesses.*
Poor Sleep Habits
Vitamin B6 supports natural energy regulation, promoting healthier sleep patterns and making it easier for kids to get restful sleep.*
Picky Eating
Vitamin A and Vitamin B9 support cell growth and development, helping to fill in nutritional gaps that picky eaters may have and ensuring they get the nutrients they need.*
45 Day Money-Back Guarantee¹
Kids' Daily Enrichment
The Most Advanced Multivitamin for Growing Kids
Many kids' multivitamins rely on outdated formulas filled with sugar and synthetic fillers without addressing key nutrient gaps in most modern diets.
Our science-backed formula delivers 9 essential vitamins to target brain health, immunity, sleep, behavior, and overall well-being.*
Learn About the Hidden Hunger Crisis
and Vanishing Nutrients
Hidden Hunger: the health crisis affecting MILLIONS of kids, even in the US...
This hidden problem is tied to (not so hidden) symptoms. Deficiencies are often linked to challenges around behavior, immunity, mental health, and sleep.
Our solution makes it easy—no more mealtime battles or endless coaxing to eat vegetables. Just two delicious daily gummies, jam packed with essential nutrients, help address common symptoms of nutrient gaps that can impact your child's well-being.
Vanishing Nutrients: the reason why even kids with balanced diets might not get the nutrients they need...
Studies are revealing shocking declines in nutrient levels across crops. Scientists are calling this worldwide crisis Vanishing Nutrients.
From soil depletion to global warming, our food is losing its nutritional punch. In fact, a recent study from Scientific American revealed that one would need to eat EIGHT oranges today to get the same amount of nutrition that our grandparents would have gotten from ONE.
To make up for nutrient gaps, we need to consider more than just "good food". We need to feel confident our kids are always getting a consistent support of good health.
Raising the Bar on Kids' Nutrition
Unstable Moods
Vitamin B6 and Vitamin B1 play a key role in brain health and emotional balance, helping to stabilize moods and reduce irritability in kids.*
Difficulty Concentrating
With Vitamin B2 for focus support and Vitamin B1 for brain health, these gummies help kids stay focused and attentive, supporting cognitive function and clarity.*
Sugar Cravings
Vitamin C and Vitamin B6 contribute to balanced energy levels, which can help reduce the body’s cravings for quick energy sources like sugar.*
Weakened Immune System
Vitamin C and Vitamin D3 are essential for a strong immune system, providing the nutrients kids need to defend against common colds and other illnesses.*
Poor Sleep Habits
Vitamin B6 supports natural energy regulation, promoting healthier sleep patterns and making it easier for kids to get restful sleep.*
Picky Eating
Vitamin A and Vitamin B9 support cell growth and development, helping to fill in nutritional gaps that picky eaters may have and ensuring they get the nutrients they need.*
45 Day Money-Back Guarantee¹
Approved by Pediatricians,
Backed by Science.
We’ve created a formula that has been genuinely shown to make a difference when it comes to improving mood, sleep, digestion, and overall behavior.¹
Parents and doctors agree—our vitamins make a real difference in kids' health.
"When I choose vitamins, I consider their quality and safety records, ingredients, dosage, and testing protocol. First Day has created an excellent supplement for children."
- Leann Poston M.D, M.Ed, MBA, Pediatrician and Medical Educator
82%
of customers saw an improvement in their child's overall moodiness, irritability & sleep.¹
97%
of customers Prefer First Day over other vitamin brands.¹
88%
of customers saw improved digestion from their child taking the Kids' Multivitamin and Probiotic together¹
82%
of customers saw an improvement in their child's overall behavior.¹
Over 800,000 Parents Are Helping Their Kids Reach Their Full Potential
Scientifically designed to fight nutrient deficiencies that can lead to behavioral problems and picky eating.*
Formulated with Purpose
Experts Love Us!
Our scientific mentors are leading doctors, scientists, and most importantly parents. They help guide First Day's mission to build a better future for families everywhere.
Dr. Ed Giovannucci, MD, MPH, ScD
Harvard University
In 1984, Dr. Giovannucci graduated with his medical degree from the University of Pittsburgh. He then spent the next 8 years at Harvard, working for his Doctor of Science Degree. Since then, he has climbed to the top of his field.
Yale University
In 1997, he graduated with his Medical Degree from New York University. He spent his time at the Yale School of Medicine, as well as the Yale-New Haven Children's Hospital. He also graduated with a Masters of Health Science from the Yale School of Medicine in 2010.
"I truly believe in our mission of bringing better health to families."
"After learning about the massive amounts of sugar that were in typical kids multivitamins, I built a list of 198 Harvard and Yale nutritionists, pediatricians, and professors. From there, two of the top researchers at Harvard and Yale agreed to help!
I explained my story to them, how I wanted to help parents, and what I found about the vitamin industry. And they were a huge help in creating this breakthrough in kids nutrition.
That's why we’re so confident First Day will help you get the results you want. If within the first 45 days you find yourself not completely satisfied, we’ll give you your money back - no questions asked.**"
**We offer a 45-day satisfaction guarantee for returns. It covers 45 days starting from the day that you place an order and includes only the very first purchase of any product so that families can try our gummies - for any reason you aren't happy with your vitamins. Please note that we will refund up to $100 so that you can try up to 3 bottles of our gummies risk free. If you would like to order more than 3 bottles in your first order, we recommend that you ordering less so that your family can try them first. Thanks so much for your understanding!
1. Based on a survey of First Day customers
*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.
