NOW Foods Vitamin A & D
vs
Metagenics Bone Builder® Prime
Supplement Comparison

  • Vitamin D: Metagenics Bone Builder® Prime has 50% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 9 nutrients compared
Bar chart: per-serving label amounts and listed forms for NOW Foods Vitamin A & D vs Metagenics Bone Builder® Prime.

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Frequently asked questions

Which active ingredients does NOW Foods Vitamin A & D have?

  • Vitamin A appears as Retinyl Palmitate
  • Vitamin D appears as Cholecalciferol (D3)

Which active ingredients does Metagenics Bone Builder® Prime have?

  • Vitamin D appears as Cholecalciferol (D3)
  • Calcium appears as Calcium (MCHC, dicalcium phosphate)
  • Phosphorus appears as Phosphorus (MCHC, dicalcium phosphate)
  • Microcrystalline Hydroxyapatite Concentrate (MCHC)
  • Ipriflavone

Which categories do NOW Foods Vitamin A & D and Metagenics Bone Builder® Prime belong to?

  • Single Vitamin
  • Joint Formula

What health concerns do NOW Foods Vitamin A & D and Metagenics Bone Builder® Prime address?

  • Eye Health
  • General Health
  • Immune System Support
  • Joint & Bone Health

Which product has a higher amount of Vitamin D per serving?

  • Metagenics Bone Builder® Prime has the highest total amount of Vitamin D: 600 IU per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • NOW Foods Vitamin A & D: 1 softgel
    • Metagenics Bone Builder® Prime: 3 tablets
  • Vitamin A
    • This supplement has 3000 mcg RAE
    • Recommended Dietary Allowance in men: 900 mcg RAE
    • Recommended Dietary Allowance in women: 700 mcg RAE
    • Tolerable Upper Intake Level: 3000 mcg RAE
  • Vitamin D
    • This supplement has 400 IU
    • Recommended Dietary Allowance in men: 600 IU
    • Recommended Dietary Allowance in women: 600 IU
    • Tolerable Upper Intake Level: 4000 IU
  • Vitamin D
    • This supplement has 600 IU
    • Recommended Dietary Allowance in men: 600 IU
    • Recommended Dietary Allowance in women: 600 IU
    • Tolerable Upper Intake Level: 4000 IU
  • Calcium
    • This supplement has 660 mg
    • Recommended Dietary Allowance in men: 1000 mg
    • Recommended Dietary Allowance in women: 1000 mg
    • Tolerable Upper Intake Level: 2500 mg
  • Phosphorus
    • This supplement has 380 mg
    • Recommended Dietary Allowance in men: 700 mg
    • Recommended Dietary Allowance in women: 700 mg
    • Tolerable Upper Intake Level: 4000 mg

Last updated: February 13, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team