Over 70% of Americans have suboptimal vitamin D levels, even in sunny states like Florida and California. Most families are taking only 400 IU daily when research shows we need 2,000-5,000 IU for optimal immune function, brain development, and disease prevention. But here’s what almost nobody talks about: taking vitamin D3 without magnesium, K2, and zinc means your body can’t actually use it properly.
This video breaks down why vitamin D2 supplements don’t work, why the RDA is dangerously low, and the three essential cofactors that determine whether your vitamin D actually supports your family’s health. You’ll learn the optimal blood levels to target (hint: it’s not what your doctor probably told you), how much vitamin D your kids actually need based on body weight, and why testing twice yearly is the only way to know if your supplementation strategy is working. Whether you’re dealing with frequent infections, low energy, or just want to optimize your family’s wellness naturally, understanding vitamin D is non-negotiable.
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0:00 Intro
1:10 Why this matters
4:20 Which you need most
6:00 Essential cofactors for best results
7:50 How much you need
10:05 Sunshine isn’t enough anymore
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🔎 Obligatory Disclaimer
This video is for educational purposes and not a substitute for professional medical advice. The views and opinions expressed are just that: opinions. Always consult a healthcare provider for personalized guidance.
🤓 SELECTED RESOURCES 📑
Holick MF. Vitamin D: importance in the prevention of cancers, type 1 diabetes, heart disease, and osteoporosis. Am J Clin Nutr. 2004;79(3):362–371. doi:10.1093/ajcn/79.3.362.
Tripkovic L, Lambert H, Hart K, et al. Comparison of vitamin D2 and D3 supplementation in raising serum 25(OH)D concentrations: systematic review and meta-analysis. Am J Clin Nutr. 2012;95(6):1357–1364. doi:10.3945/ajcn.111.031070.
Martineau AR, Jolliffe DA, Hooper RL, et al. Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and individual participant data meta-analysis. BMJ. 2017;356:i6583. doi:10.1136/bmj.i6583.
Jolliffe DA, Camargo CA, Sluyter JD, et al. Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of randomized controlled trials. Lancet Diabetes Endocrinol. 2021;9(5):276–292. doi:10.1016/S2213-8587(21)00051-6.
Aghajafari F, Nagulesapillai T, Ronksley PE, et al. Maternal serum 25-hydroxyvitamin D level and pregnancy and neonatal outcomes: systematic review and meta-analysis. BMJ. 2013;346:f1169. doi:10.1136/bmj.f1169.
Roth DE, Leung M, Mesfin E, et al. Vitamin D supplementation during pregnancy: systematic review of randomized trials. BMJ. 2017;359:j5237. doi:10.1136/bmj.j5237.
Uwitonze AM, Razzaque MS. Role of magnesium in vitamin D activation and function. J Am Osteopath Assoc. 2018;118(3):181–189. doi:10.7556/jaoa.2018.043.
van Ballegooijen AJ, Beulens JWJ, van Schoor NM, et al. The synergistic interplay between vitamins D and K for bone and cardiovascular health. Clin Nutr. 2017;36(3):785–793. doi:10.1016/j.clnu.2016.05.013.
Keum N, Lee DH, Greenwood DC, et al. Vitamin D supplementation and total cancer incidence and mortality: meta-analysis of randomized controlled trials. Ann Oncol. 2019;30(5):733–743. doi:10.1093/annonc/mdz011.
Marcinowska-Suchowierska E, Kupiec T, et al. Vitamin D toxicity – a clinical perspective. Front Endocrinol (Lausanne). 2018;9:550. doi:10.3389/fendo.2018.00550.
#VitaminD #VitaminDDeficiency #VitaminD3 #VitaminDSupplement #MagnesiumBenefits #VitaminK2 #ImmuneSupport #NaturalHealth #FamilyWellness #HolisticHealth
Think of vitamin D kind of like a bank account. Most families are taking making tiny deposits through the day through food and occasional sun exposure, but then we have massive daily withdrawals because of stress and indoor living and basic metabolic needs. The math just doesn’t add up. Here’s the kicker. Your body can use upwards of 2 3 4 5,000 IUs of vitamin D daily just for basic functions when we’re super stressed. And that’s why the old RDA of 400 was never going to cut it. It’s like trying to run a household on $50 a month when your bills are 2,000.
