Anyone taking calcium alpha-ketoglutarate (AKG)?

I think I have some AKG on back order at the moment, but to be honest I have inteventions that I know work. On my list of things to try sits Urolithin A which seems to have a lot more potential than AKG.

I am not myself sure how AKG works, but it is one of the Krebs/TCA/Citric Acid metabolites and they all seem to have some interest although citrate seems to be the most significant (not surprising given that it is the citric acid cycle).

Malate and Citrate swap via the citrate carrier, but that still requires the function of the citrate carrier which is inhibited by IL-10 (via the Janus Kinase and NF kappa B).

2 Likes

To keep the number of supplements I take from getting completely out of hand and the fact that new “wonder” supplements appear daily, I take a new supplement for ~ 30 - 60 days, unless there are good studies that show benefits only after long use.
I took AKG for 30 days each morning before I went to the gym. I felt absolutely no subjective effects and decided to stop taking it. I still have a couple of bottles on the shelf.

4 Likes

I’m with you: fewer are better. Plus I want to add taurine with creatine midday before the gym (which I stopped but want to restart from all the benefits I keep reading about). And I’m still not on rapa although plan to, and thinking about Nattokinase (seasonally) and NMN (although reading about the lack of NMN in samples continues to prevent me from bothering).

3 Likes

Hi Eric, I also am preparing to start rapamycin but want to do a full set of testing first and beyond the standard blood tests that have been recommended here, I’m researching what other tests or biomarkers would best represent the positive changes that I expect to see from taking rapamycin. I’m putting together a list of relatively simple and inexpensive tests (all short of the epigenetic clock tests) to add to the standard blood tests and the Levine Phenotypic Age. They would include functional tests (like sit-to stand, grip strength), blood pressure, heart rate measures (resting heart rate, maximum heart rate, heart rate variation), maybe a mental acuity test (MoCA test?), maybe a sleep score, maybe eyesight, hearing, olfactory tests. But anyway as many factors that could possibly be improved by taking rapamycin.
And on AKG, I am taking it but my research says that it might be the closest OTC supplement to rapamycin (another Caloric restriction mimetic) so that there is probably a lot of overlap. So I may stop when I start rapamycin. Hard to say because Metformin (another Caloric restriction mimetic) shows some synergies when taken with rapamycin and AKG may also. Here’s a great recent article on AKG.
“As discussed above, aging is physiological changes that occur in the body, leading to senescence, the decline of biological functions, and reduction of the capacity for regulation of metabolic stress. It is very clear that the number and proportion of elderly people are increasing in all countries. In recent years, anti-aging related researches have become one of the most interesting and promising research fields focused on finding new or already existing medicines that could tackle aging. To this end, several compounds such as rapamycin, metformin and AKG have been proposed as anti-aging drug. It is important to note that AKG has some advantages over other drugs associated with longevity. First, AKG is a compound found naturally in the body. Second, AKG has a high solubility in aqueous solutions. Third, AKG is completely consumed by the organism; in other words, there is no excretion of it either in the form of urine or feces. Forth, AKG derivatives (e.g. Ca-AKG) have the capacity to cross the cell membrane.
Interestingly, AKG increases food intake, leading to an increase in muscle and bone growth in animal models. We still know little about the mechanisms involved in aging in human and AKG effects on it, but this multi-purpose metabolite might significantly improve longevity and healthspan in human.”

https://www.sciencedirect.com/science/article/pii/S053155652300075X

2 Likes

Where did you get potassium AKG?

Sorry, my mistake. I was going by my faulty memory. The potassium supplement I am taking:
Nutricost Potassium BHB Salts, Exogenous Ketone Supplement.

The AKG supplement I was taking was:
Double Wood AKG Supplement (Alpha Ketoglutaric Acid)

Both are from Amazon.

Drat! Thanks. (Post must be at least 20 characters )

Thanks for that. How long have you been taking AKG? Any noticeable effects, or just taking it because of your literature interpretation?

I’ve only been taking AKG for about 3 weeks and I take a number of other supplements so I can’t be sure of any changes. Be sure to get it from a reputable company with third party testing certification (for all supplements) or you may not be getting what you pay for. I do think (from my reading) that AKG is particularly valuable if you are not taking rapamycin. I’m trying to maximize my biomarkers of aging with non pharmaceutical supplements first and then add rapamycin and see what changes. The challenge is to set up the right testing protocol (not Bryan Johnson level) that can be done every 3 months so that you can add or drop an intervention (like AKG or rapamycin) and see if it makes a difference (shows a result in your tests). Often you might not feel anything subjectively but it may show up in a test (blood or otherwise).

4 Likes

“On the assumption that the average mouse weighs 30 gm and consumes 5 gm of food/day of food/day”

So 2% w/w on 5gm/day food = 0.1g/day CaAKG for mouse

Converting 0.1g/day consumption for a 30 g mouse to an equivalent consumption for a 70kg human = 0.1/30 * 70,000g = 233g/day of CaAKG

Someone please check, but is human supplementation ORDERS of magnitude lower?

100mg food/0.03kg weight=3,333mg/kg

Human equivalent dose conversion factor=12.3

(3,333/12.3)mg/kg=271mg/kg

271mg/kg*70kg=18,970mg CaAKG/day for a 70kg human.

Let’s call it 19grams, which is also about 3.75g supplemental calcium per day. That’s quite a bit of supplemental calcium, see for example below.

3 Likes

Just ordered CA-AKG from DoNotAge. It’s time for me to give it a go. I used the 10% off code BRAD.

3 Likes