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Iron Facts

Iron is an essential mineral central to hemoglobin (blood) and myoglobin (muscle) for oxygen transport and storage. It also supports cellular energy production and immune function. Dietary iron is heme (animal) and non-heme (plant/fortified foods); absorption differs by form and meal composition.

Key Benefits of Iron:

  • Supports energy and stamina by helping deliver oxygen to muscles and tissues.
  • Supports oxygen delivery to the brain, which is essential for normal cognitive function.
  • Maintains immune resilience through its role in white blood cell function.

Why it Matters:

Even mild deficiency without anemia can impair cognitive and physical performance Ā¹.

Citations:

1. Castelo-Blanco C, Quintas L. Iron deficiency and cognitive impairment: clinical review. Eur J Obstet Gynecol Reprod Biol. 2022;271:212-218. doi:10.1016/j.ejogrb.2022.02.026

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* 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.

Information on this site is provided for informational purposes only. It is not meant to substitute for medical advice from your physician or other medical professional. You should not use the information contained herein for diagnosing or treating a health problem or disease, or prescribing any medication. Carefully read all product documentation. If you have or suspect that you have a medical problem, promptly contact your regular health care provider.

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ā—ŠAccording to IQVIA Pro Voice Survey of 248 primary care physicians in December 2025.

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  1. In a triple-blind, randomized, placebo-controlled parallel-designed clinical trial evaluating nutrient biomarkers and microbiome shifts in 105 healthy adults ages 20-59 over the course of 12 weeks using the AG1 Next Gen formula.
  2. In a double-blind, randomized, placebo-controlled 2-week crossover clinical trial assessing nutrient gaps and microbiome shifts in 20 active adults ages 19-37 using the AG1 Next Gen formula.
  3. In a double-blind, randomized, placebo-controlled 2-week crossover clinical trial assessing nutrient gaps and microbiome assessments of 40 healthy adults with occasional GI distress ages 26-59 over the course of 4 weeks using the AG1 Next Gen formula.
  4. In a double-blind, randomized, placebo-controlled crossover clinical trial assessing nutrient gaps and bioavailability in 16 healthy adults ages 18-42 over the course of 8 hours using the AG1 Next Gen formula.
  5. In a third-party, single-arm, closed label interventional study of 104 healthy adults ages 25-59 assessing self-perceived efficacy of AG1 Next Gen over 3 months.

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