5 Reasons Pediatricians Insist on filling these Nutrient gaps in Teens

Note: Read this before you struggle with your kid's next dinner battle.
Kristin Arteminia

Kristin Arteminia

Sponsored
Updated 06/28/2026
REASON 1

Visible Results in Just a Few Weeks.

Most parents see real changes within the first month. The most common mistake is inconsistency, skipping days resets the progress. First Day is the vitamin kids ask for. No fighting, no spitting it out, no "do I have to." Just two precisely formulated gummies, every day, doing their job.

Day 7 — First Signs

Methylfolate and B6 begin supporting the neurotransmitters behind mood and motivation.

83% of parents report seeing a shift in their kid's mood within the first two weeks.*

Day 30 — Visible Changes

Methylfolate has fully replaced the folic acid most kids' bodies were struggling to convert. The 21 superfoods are filling in what their diet's been missing.

98% of parents say First Day supports their kid's overall health and nutrition.*

Day 90 — Full Impact

All 10 critical nutrients and the superfood blend are working together at the doses matched to your child's age.

75% of parents report visible improvement in skin health.*

*Based on a survey of First Day customers.

REASON 2

The Only Bio-Matched Multivitamin: 10 Critical Nutrients + 21 Superfood Blend

Formulated using over 35,000 scientific studies, every nutrient in First Day is in the form, and the dose, your child's body was actually designed to absorb, matched to their exact age and developmental stage. No guessing. No generic adult dose, shrunk down. Just what their biology actually needs, at the age they need it with no fillers, artificial sugars or colors.  

REASON 3

Built To Be Absorbed, Not Just Listed

Every nutrient in First Day exists because your child's body is already built to recognize it. Not the lab-made version that looks right on a label and passes right through. The version their biology was designed to absorb, in amounts matched to their age, paired so each one makes the others work harder.

REASON 4

9 Things Most Kids' Vitamins Skip. We Don't.

Most kids' vitamins are dosed once and sold to every age, using cheap forms the body struggles to absorb in the first place. First Day is Bio-Matched: the right form, the right dose for your child's exact age, and nutrients paired so they activate each other instead of canceling out. Formulated this way, two gummies daily can address the wide range of problems that show up when specific nutrients are missing 

✓ Mood Support
✓ Focus & Attention Support
✓ Immune Support
✓ Sleep Support
✓ Picky Eating Support
✓ Growth & Development Support
✓ Energy Support
✓ Skin Support
✓ Behavior Support

REASON 5

Built for Picky Eaters

Your picky eater won't touch a salad. Their body needs the vitamin C and A you can't get them to eat.

First Day's Kids' Multivitamin fills that gap with 21 organic superfoods. Not synthetic isolates. One packet. No negotiation. Kids ask for it every morning.

Why it works: Real food sources mean their body actually recognizes and uses what you're giving them. No artificial colors, no fillers, no melatonin trap (unlike most kids' brands).

The outcome: immune cells that respond to everyday germs. Vision that develops normally. Growth that doesn't stall while you wait for them to eat broccoli.

The "No Junk"™ Kids’ Multi

Deliciously nutritious daily multivitamin gummies packed with 21 organic superfoods and 9 essential vitamins.

Flavor: Strawberry & Orange

 Enhanced Nutrition & Immunity Enhanced Nutrition & Immunity
95%

of parents say First Day vitamins support their child's overall health & immunity.†

 Improved Behavior Improved Behavior
83%

of customers say First Day vitamins support their child's overall mood & behavior.†

 Better Sleep Routines Better Sleep Routines
82%

said these vitamins are improving their child's overall bedtime routines & sleep quality.†

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Ingredients

We are thoughtful about the ingredients we select, use REAL organic fruits & vegetables, and keep out long lists of ingredients that can't even be pronounced.

Organic Superfoods Blend: Apple, Kale, Broccoli, Spinach, Carrot, Parsley, Beet, Green Cabbage, Raspberry, Blueberry, Strawberry, Tomato, Aronia Berry, Chlorella, Maca, Moringa, Reishi Mushroom, Cordyceps Mushroom, Lion's Mane Mushroom, Turmeric, Ginger.


Other Ingredients: Tapioca Syrup‡, Cane Sugar‡, Water, Pectin, Citric Acid, Natural Flavors, Superfood Powdered Blend‡ (Apple‡, Kale‡, Broccoli‡, Spinach‡, Carrot‡, Parsley‡, Beet‡, Green Cabbage‡, Raspberry‡, Blueberry‡, Strawberry‡, Tomato‡, Aronia Berry‡, Chlorella‡, Maca‡, Moringa‡, Reishi Mushroom‡, Cordyceps Mushroom‡, Lion's Mane Mushroom‡, Turmeric‡, Ginger‡), Carrot and Blackcurrant and Red Bell Pepper Juice for Color.
‡Organic

Free From The Top 9 Allergens: We are dairy-free, soy-free, egg-free, gluten-free, peanut-free, tree nut-free, fish-free, shellfish-free, and sesame-free.

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Multivitamin gummy container with &
Nutrition, made easy. Take the stress out of mealtime and fill nutrition gaps with a routine so tasty, your kids will forget it&
In just 2 yummy gummies, give your kids the essential nutrients they desparately deserve today. Vitamin C, Vitamin D3, Vitamin B2, Vitamin B6, Vitamin A, Folate, Vitamin B1, Vitamin K2, Vitamin B12.
Nutrition never tasted so good with our blend of 21 organic superfood fruits and veggies and nine critical nutrients in just two gummies. No fake sugars and developed based on 35,000 scientific studies.
First day has sold 55 million gummies in 2024 because of it&
93% of kids don&
Trusted by over 800,000 parents. 97% of customer prefer First Day over other vitamin brands they&
Better health for the whole family. Featuring 3 customer reviews about how much the kids love the taste.
New packaging to better reflect what&
Kids Multivitamin Nutrition Label and Supplement Facts.

See Why Parents & Doctors Notice Immediate Health Changes

95%
of parents see

improved health & wellness

95%
82%
of kids ask for

their vitamins daily

82%
97%
customer

satisfaction rate

97%

1 in 3 Families Have A Nutrient Deficiency.

I created First Day to address the massive concerns with todays diet and it's negative effects on our families.

  • The Average Person Consumes 52 Credit Cards’ Worth Of Microplastics Every Year.
  • Artificial Food Additives Are Found In 59% Of Foods Today
  • Fresh Fruits & Veggies Have Lost Up To 73% Of Their Nutrients

After learning about the massive amounts of sugar that were in typical kids multivitamins I reached out to 2 of the top researchers at Harvard and Yale. I explained my story to them, how I wanted to revolutionize the vitamin industry. After consulting with these experts to help us carefully formulate our vitamins, we are now a best selling multivitamin nationwide.

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.

Try with 45 Day Money Back Guarantee
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I created First Day to address the massive concerns with todays diet and it's negative effects on our families.

  • The Average Person Consumes 52 Credit Cards’ Worth Of Microplastics Every Year.
  • Artificial Food Additives Are Found In 59% Of Foods Today
  • Fresh Fruits & Veggies Have Lost Up To 73% Of Their Nutrients

After learning about the massive amounts of sugar that were in typical kids multivitamins I reached out to 2 of the top researchers at Harvard and Yale. I explained my story to them, how I wanted to revolutionize the vitamin industry. After consulting with these experts to help us carefully formulate our vitamins, we are now a best selling multivitamin nationwide.

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.

Try with 45 Day Money Back Guarantee