DoNotAge · Ca-AKG · Physician-reviewed · #1 Ca-AKG pick
DoNotAge Ca-AKG Review — 400 mg Capsules, Human Evidence and Verdict
What stands out
- 400 mg of Ca-AKG per capsule in a simple plant-based capsule with no fillers, binders or unnecessary additives.
- DoNotAge states that every batch is independently tested and that its ingredients are verified to a 99.8% purity standard.
- Manufactured under GMP and ISO9001-certified systems, with climate-controlled storage and global fulfilment.
- Practical dosing: 400 mg per capsule, 800 mg/day standard use, with a 1,600 mg/day annual subscription option for users who intentionally choose a higher intake.
- Strong overall value for a specialist longevity product, with a $49 starting price and BB10 reader discount on eligible standalone purchases.
Things to know first
- Standard-release DoNotAge Ca-AKG is not the proprietary delayed-release Rejuvant formulation used in the best-known DNA-methylation-age studies.
- The exact retail DoNotAge capsule has not been tested as a finished product in a randomized longevity trial; its evidence chain comes from Ca-AKG research plus product-quality documentation.
Key takeaways
- DoNotAge Ca-AKG is our #1 overall Ca-AKG recommendation for 2026 because it combines a clean single-ingredient formula, stated independent batch testing, practical dosing and strong value.
- Each capsule contains 400 mg Ca-AKG; the standard recommendation is two capsules daily for 800 mg/day.
- Human Ca-AKG evidence is strongest for oral metabolic exposure, bone-related outcomes and historical clinical use; the biological-age signal remains observational and formulation-specific.
- DoNotAge states every batch is independently tested and its ingredients are verified to a 99.8% purity standard, with GMP and ISO9001 manufacturing.
- The 60-capsule bottle lasts 30 days at 800 mg/day; annual subscriptions use 366-capsule containers and are dispatched as a single annual shipment.
Bottom line
Our verdict
DoNotAge Ca-AKG — via DoNotAge
- 14-day money-back guarantee
- 30-day supply per bottle
- Subscribe & save available
- Fast shipping from DoNotAge
DoNotAge handles pricing, fulfilment, and customer support for this product. Biohack Blueprint may earn a commission from purchases made through links on this page, at no extra cost to you. This does not affect our evidence grading or editorial verdict.
Who this is for
Good fit if you're...
Longevity-focused adults
Best suited to adults who want a simple daily Ca-AKG product from a specialist longevity brand.
Clean-label buyers
A strong fit if you prefer a single active ingredient, plant-based capsule and no unnecessary fillers.
Existing DoNotAge users
Easy to add to a DoNotAge-focused stack, with BB10 available on eligible standalone purchases.
Evidence-conscious supplement users
A good fit if you value human Ca-AKG pharmacology and bone evidence but accept that longevity outcomes remain under study.
Probably not for you if...
Buyers who require the exact Rejuvant study formulation
Choose the studied controlled-release Rejuvant formulation if exact formulation matching to those observational biological-age papers is your overriding priority.
People with complex calcium-sensitive medication timing
Discuss with a clinician or pharmacist first if your medicines are known to interact with oral calcium.
Key facts & composition
| Per capsule | 400 mg Ca-AKG Calcium alpha-ketoglutarate salt mass |
|---|---|
| Recommended daily serving | 800 mg/day 2 capsules daily |
| Retail bottle | 60 capsules 30 days at the standard serving |
| Current starting price | From $49 Price checked September 21, 2026 |
| Quality testing | Independent batch testing stated DoNotAge also states a 99.8% ingredient purity standard |
| Money-back guarantee | 14 days Full refund unopened; partial refund terms apply to opened products |
Composition
| Ingredient | Amount | Form | Source |
|---|---|---|---|
| Calcium alpha-ketoglutarate (Ca-AKG) | 800 mg/day (2 × 400 mg capsules) | Standard-release calcium alpha-ketoglutarate | DoNotAge single-ingredient capsule |
How it works
TCA-cycle metabolism and cellular energy
AKG-dependent enzymes and epigenetic regulation
Nutrient, immune and senescence signaling
The evidence
Oral AKG reaches human metabolic circulation and changes measurable metabolic markers
Tier 2
Ca-AKG may be associated with lower DNA-methylation biological age
Tier 2
Oleksandr Demidenko et al. 2021, Kamil Pabis et al. 2026, Elena Sandalova et al. 2023, Lim ZM et al. 2025
Ca-AKG extends lifespan
Tier 3
Azar Asadi Shahmirzadi et al. 2020, Miller RA et al. 2024, Korstanje R et al. 2026
Ca-AKG reduces age-related inflammatory or senescence signaling
Tier 3
Azar Asadi Shahmirzadi et al. 2020, Liu PS et al. 2017, Akakura S et al. 2025
Ca-AKG improves muscle function, frailty or sarcopenia in aging humans
Tier 3
Zhang Y et al. 2025, Ciuffoli V et al. 2024, Miaomiao Xu et al. 2024
How it compares
| DoNotAge Ca-AKG | Renue By Science CaAKG | Rejuvant LifeAKG | |
|---|---|---|---|
| Standard daily serving | 800 mg/day | Renue: label-dependent CaAKG serving | Rejuvant: ~1,000 mg/day controlled release |
| Release / delivery | Standard capsule | Renue: liposomal capsule | Rejuvant: controlled release |
| Formula simplicity | Single-ingredient Ca-AKG; no fillers/additives stated | Single CaAKG product with liposomal delivery system | Ca-AKG plus sex-specific vitamins |
| Testing transparency | Independent testing + stated 99.8% purity standard | Strong public batch-number testing archive | Third-party testing stated |
| Match to biological-age studies | Standard Ca-AKG; not the Rejuvant formulation | Different liposomal formulation | Closest formulation match |
| Current starting price | From $49 | About $48.95 | About $99.95 / 30 days |
| Biohack Blueprint position | #1 overall Ca-AKG pick | Best for granular public batch documentation | Best for exact Rejuvant-study formulation match |
Clinical pharmacology
Dose tiers
| Tier | Dose | Frequency | Duration | Notes |
|---|---|---|---|---|
| DoNotAge standard serving | 800 mg/day | Daily | Ongoing label use | |
| Modern aging-trial anchor | 1,000 mg/day | Daily | 6 months | |
| DoNotAge higher subscription option | 1,600 mg/day | Daily | Annual subscription supply |
From bench to bedside
| Pathway | Preclinical finding | Human translation | Confidence |
|---|---|---|---|
| TET / epigenetic dioxygenases | AKG availability can influence TET-dependent DNA demethylation and senescence-state plasticity. | Human biological-age associations exist, but they are observational and formulation-specific rather than randomized proof of epigenetic rejuvenation. | Moderate mechanism / low-to-moderate clinical translation |
| mTOR / AMPK nutrient signaling | AKG can alter ATP synthase, TOR/mTOR and AMPK-related signaling in several experimental models. | No human trial has shown that oral Ca-AKG improves longevity by clinically suppressing mTOR or activating AMPK. | Moderate preclinical / low clinical |
| Senescence-associated secretory phenotype (SASP) | Ca-AKG reduced selected SASP/inflammatory signals in the foundational mouse-aging program without establishing senescent-cell clearance. | Useful as a mechanistic rationale, but no randomized human Ca-AKG trial has yet demonstrated a senomorphic clinical outcome. | Moderate preclinical / low clinical |
Drug interactions
Levothyroxine and other calcium-sensitive oral medicines
The product is a calcium salt; oral calcium can reduce absorption of some medicines, although DoNotAge does not state the product's elemental calcium amount.
Recommendation:
Quinolone antibiotics
Calcium can chelate some quinolone antibiotics and reduce their absorption.
Recommendation:
Dolutegravir / HIV integrase inhibitors
Calcium-containing supplements can reduce dolutegravir exposure through chelation under fasting conditions.
Recommendation:
Bioavailability tips
Special populations
| Population | Recommendation | Rationale |
|---|---|---|
| Pregnancy or breastfeeding | Avoid routine use unless specifically approved by your clinician | |
| Kidney disease, dialysis or abnormal calcium/phosphate balance | Use only with clinician supervision | |
| Children and adolescents | Not intended for routine longevity use | |
| Active cancer treatment | Discuss with the oncology team before use |
Therapeutic positioning
Renue By Science CaAKG
Rejuvant LifeAKG
Toniiq Calcium AKG 1500
About buying through us
Is 800 mg too low compared with the 1,000 mg used in modern Ca-AKG studies?
Why choose DoNotAge instead of Rejuvant?
Would liposomal Ca-AKG be better absorbed?
Should I use the 1,600 mg/day subscription option?
Has the exact DoNotAge Ca-AKG product been clinically tested?
Reader questions
Is DoNotAge Ca-AKG a good supplement?
How much Ca-AKG is in DoNotAge?
Is DoNotAge Ca-AKG third-party tested?
Does DoNotAge Ca-AKG reverse biological age?
Is DoNotAge Ca-AKG delayed release?
When should I take DoNotAge Ca-AKG?
Can I take DoNotAge Ca-AKG with medication?
Does BB10 work on DoNotAge Ca-AKG?
Related reading
Calcium alpha-ketoglutarate: benefits, dose and evidence
Shahmirzadi 2020 Ca-AKG study: what it found and what replication changed
What is Ca-AKG supplement? A plain-English guide
How does Ca-AKG work? Mechanisms explained
Ca-AKG vs AAKG: which one, and why they're different
Ca-AKG vs AKG: does the calcium binding really matter?
AKG forms explained: Ca-AKG, AAKG, OAKG, and the rest
Ca-AKG dosage: what the trial data actually supports
When to take Ca-AKG: what actually matters (and what doesn't)
Ca-AKG and autophagy: what the evidence actually shows
Ca-AKG stacking: pairing with NMN, fisetin and other longevity supplements
Ca-AKG and biological age: the Rejuvant story, the ABLE trial, and what we actually know
Ca-AKG for bone health: the postmenopausal osteopenia evidence
Ca-AKG and grey hair: what the mouse study actually showed
Ca-AKG for muscle, frailty and sarcopenia
Ca-AKG and inflammation: the SASP, cytokines and inflammaging picture
Ca-AKG for weight loss and fatty liver: what the metabolic data supports
Ca-AKG side effects and safety profile
Ca-AKG dietary sources: foods that contain alpha-ketoglutarate
Ca-AKG and cancer: the honest evidence check
Ca-AKG and fisetin: pairing a Krebs cycle metabolite with a senolytic
Ca-AKG vs NMN: mechanisms and human evidence compared
Ca-AKG vs Urolithin A: human evidence and mechanisms compared
Best Ca-AKG supplement: a clinician's buying guide
- Alpha-Ketoglutarate dietary supplementation to improve health in humans Read on our Data CenterView on PubMed DOI
- Radiolabeling and dose fixation study of oral alpha-ketoglutarate as a cyanide antidote in healthy human volunteers Read on our Data CenterView on PubMed DOI
- Action of ornithine alpha-ketoglutarate, ornithine hydrochloride, and calcium alpha-ketoglutarate on plasma amino acid and hormonal patterns in healthy subjects Read on our Data CenterView on PubMed DOI
- Alpha-Ketoglutarate Decreases Serum Levels of C-terminal Cross-Linking Telopeptide of Type I Collagen (CTX) in Postmenopausal Women with Osteopenia: Six-Month Study Read on our Data CenterView on PubMed DOI
- 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 Read on our Data CenterView on PubMed View on PMC DOI
- Supplements and Drugs Are Associated With Biological Age in a Cohort of Exceptionally Healthy Individuals Read on our Data CenterView on PubMed View on PMC DOI
- Alpha-ketoglutarate supplementation and BiologicaL agE in middle-aged adults (ABLE)—intervention study protocol Read on our Data CenterView on PubMed View on PMC DOI Clinical Trial
- Recruitment evaluation of a gerotherapeutic randomized controlled trial testing alpha-ketoglutarate in biologically older, middle-aged adults (ABLE) Read on our Data CenterView on PubMed DOI Clinical Trial
- Alpha-Ketoglutarate, an Endogenous Metabolite, Extends Lifespan and Compresses Morbidity in Aging Mice Read on our Data CenterView on PubMed View on PMC DOI
- Lifespan effects in male UM-HET3 mice treated with sodium thiosulfate, 16-hydroxyestradiol, and late-start canagliflozin Read on our Data CenterView on PubMed View on PMC DOI
- Astaxanthin, meclizine, mitoglitazone, pioglitazone, alpha-ketoglutarate, mifepristone, methotrexate, and atorvastatin-telmisartan do not increase lifespan in UM-HET3 mice Read on our Data CenterView on PubMed View on PMC DOI
- Calcium alpha-ketoglutarate administration to malnourished hemodialysis patients improves plasma arginine concentrations Read on our Data CenterView on PubMed
- Long-term treatment with calcium-alpha-ketoglutarate corrects secondary hyperparathyroidism Read on our Data CenterView on PubMed
- Randomized crossover study comparing the phosphate-binding efficacy of calcium ketoglutarate versus calcium carbonate in patients on chronic hemodialysis Read on our Data CenterView on PubMed DOI
- Calcium ketoglutarate versus calcium acetate for treatment of hyperphosphataemia in patients on maintenance haemodialysis: a cross-over study Read on our Data CenterView on PubMed DOI
- Toxicity of alpha-ketoglutarate following 14-days repeated oral administration in Wistar rats Read on our Data CenterView on PubMed DOI
- α-ketoglutarate orchestrates macrophage activation through metabolic and epigenetic reprogramming Read on our Data CenterView on PubMed DOI
- AKG-TET axis is central to senescence plasticity Read on our Data CenterView on PubMed View on PMC DOI
- α-Ketoglutarate Ameliorates Sarcopenia in D-Galactose-Induced Aging Mice by Modulating Protein Homeostasis and Optimizing Mitochondrial Function Read on our Data CenterView on PubMed View on PMC DOI
- Psat1-generated α-ketoglutarate and glutamine promote muscle stem cell activation and regeneration Read on our Data CenterView on PubMed View on PMC DOI
- Impact of Alpha-Ketoglutarate on Skeletal Muscle Health and Exercise Performance: A Narrative Review Read on our Data CenterView on PubMed View on PMC DOI
- Alpha-ketoglutarate extends Drosophila lifespan by inhibiting mTOR and activating AMPK Read on our Data CenterView on PubMed View on PMC DOI
- The metabolite alpha-ketoglutarate extends lifespan by inhibiting the ATP synthase and TOR Read on our Data CenterView on PubMed View on PMC DOI
- 21 Sep 2026 Initial publication. Product facts, dosing, safety and Ca-AKG evidence verified through September 21, 2026.
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