Calcium Alpha-Ketoglutarate (CaAKG): Why It's in Your HOP Box
The Longevity Molecule That May Turn Back Your Biological Clock
Calcium alpha-ketoglutarate (CaAKG) is a naturally occurring compound in your body. It is an intermediate in the TCA cycle (Krebs cycle), the central metabolic pathway that generates cellular energy. Like many critical molecules, CaAKG levels decline significantly with age.
What makes CaAKG unique in the longevity space is the striking human data showing that supplementation may actually reduce biological age, as measured by DNA methylation clocks, some of the most accurate biomarkers of aging science currently has.
CaAKG is part of the Hourglass Tipper blend in HOP Box, working alongside NR and spermidine to target the fundamental mechanisms of cellular aging.
What the Research Shows
Biological age reduction in humans
The most compelling CaAKG study in humans comes from the Rejuvant trial, which measured biological age using the TruAge DNA methylation clock.
Key study: A retrospective analysis of 42 adults taking CaAKG (Rejuvant) for an average of 7 months found a mean reduction of 8 years in biological age as measured by DNA methylation analysis. The effect was more pronounced in older participants and those with higher baseline biological ages.
Demidenko O, Barber D, Kang SHL, et al. "Rejuvant, a potential life-extending compound formulation with alpha-ketoglutarate and vitamins, conferred an average 8 year reduction in biological aging, after an average of 7 months of use, in the TruAge DNA methylation test." Aging. 2021;13(22):24485-24499.
Bone health
CaAKG provides calcium in a highly bioavailable form, and alpha-ketoglutarate itself has been studied for its effects on bone metabolism, which is especially relevant for women losing bone density after menopause.
Key study: A randomized, double-blind, placebo-controlled trial of postmenopausal women with osteopenia found that calcium alpha-ketoglutarate supplementation significantly reduced bone mineral density loss and decreased markers of bone turnover compared to calcium carbonate alone.
Filip RS, Pierzynowski SG, Lindegard B, et al. "Alpha-ketoglutarate decreases serum levels of C-terminal cross-linking telopeptide of type I collagen (CTX) in postmenopausal women with osteopenia: six-month study." International Journal of Vitamin and Nutrition Research. 2007;77(2):89-97.
Metabolic and energy pathways
As a key intermediate in the TCA cycle, CaAKG directly supports cellular energy production and metabolic function.
Key study: Research has shown that alpha-ketoglutarate supplementation can modulate the mTOR and AMPK pathways in humans, both of which are central regulators of aging and metabolism. These are the same pathways targeted by caloric restriction and rapamycin, two of the most established longevity interventions.
Chin RM, Fu X, Pai MY, et al. "The metabolite alpha-ketoglutarate extends lifespan by inhibiting ATP synthase and TOR." Nature. 2014;510(7505):397-401.
Why It's in HOP Box
Dr. Amy Killen included CaAKG in HOP Box because of the remarkable human data on biological age reduction. An average 8-year reduction in biological age after just 7 months of supplementation is one of the most striking findings in the longevity supplement space to date.
Beyond the headline number, CaAKG supports energy production at the most fundamental cellular level and provides bone-protective calcium in a highly absorbable form, addressing two of the biggest health concerns for women over 40.
The HOP Box Difference
- Combined with NR and spermidine in the Hourglass Tipper blend for multi-pathway longevity support
- Bone-protective calcium in a bioavailable form
- Targets the same aging pathways as caloric restriction
- Doctor-formulated by Amy Killen, MD, a longevity medicine specialist
- Convenient daily packs for consistent daily use
Ready to support your cellular health and potentially reduce your biological age?
This page is for educational purposes only and is not medical advice. Always consult your healthcare provider before starting any supplement regimen.
Sources cited are peer-reviewed human clinical studies. HOP Box is formulated by Amy Killen, MD.
