Exogenous ketones - The big test, do they work?

Many people take exogenous ketone supplements to enhance their keto diet. But do they really provide the benefits that they claim to? How did ketone supplements perform when we put them to the test? Do they work? And if so, which brand should you choose? Watch this video to find out!

Write up with all details and charts:

Watch part 1 of the experiment here:

[Betsemes]

I was expecting these results. If I've understood keto correctly, its whole intent is to adapt to burn ketones instead of carbs. No supplement will do that. Sticking to a low carb high fat, moderate to low protein diet will do that which is what keeps insulin levels low, promoting using fat as fuel and up-regulating mitochondrial function.

[dalestanley]

exogenous ketones can help when first transitioning over to fat burning/ketosis and to get back on track quickly after a cheat day or meal but should not be used long term and certainly not daily.

[stephanblake_]

I'm all natural with my keto-making, I keep all my ketones in house ;) haha

[fredsmit]

Great test! Some exogenous ketones are available in salts without a sweet taste. Maybe you should try the test again?

[balagtas]

Were the participants doing keto diet the first place????

[carolynbosley]

I for one know that Pruvit hasn't only found the science behind ketones and better health but does exactly what it says it does. I went from tired and over weight to happy and energetic in my everyday life. And yes i've lost weight

[mangravy]

Were all of these subjects in ketosis before this testing began?

[Raven]

In theory since the diet is supposed to have somewhat of an adaptation period, shouldn't any experiment with supplements cover at least that amount of time? Most places say two to six weeks for the adjustment period.
I can't help but think this test should have been about 4x as long.
*Edit* To be clear I'm not siding with the supplements. I'm just curious if this is truly a good representation because I was curious about what, if anything, these do.

[russellbaker]

Unless you're fat-adapted (in keto) your body will metabolize glucose in preference to the exogenous ketones anyway. Expecting guinea pigs to be able to manifest changes in a day is somewhat optimistic too. The control should taste similar (not sweet), look the same (opaque beaker) and the person preparing the samples should not know which is which - ie. double blind

[Jenson]

Yeah, but where does someone get a Dietdoctor bag??

[laured.]

That was an interesting subject :) i was wondering about this actually even though i'm not spending money on it. Special thanks to Erik that had a solar energy and smile that warmed up my day :)

[dannypope]

Might have been better to have a varied group of test subjects. These are all skinny fat 30 year olds. They all look like you found them at Portland Starbucks.

[littlevoice_]

Please do a similar experiment on the electrolyte supplements designed for keto and intermittent fasting

[scaramouche]

No keto physiques were seen in this video. Are these people keto adapted? if so how long?

[MarmaladeINFP]

In one informal study, ketone esters were more effective than ketone salts. They drove ketone levels higher and maintained them longer. But ketone esters supposedly taste disgusting.

[ItsLoriK]

Supplements aren't tested regularly or at all in the US & Canada. If that's not scary enough, "natural flavors" & "artificial flavors" can be anything & those ingredients (like anything that has a concentration of.05% or less) are not required to be disclosed. Since you can eat crap & still get into & stay in ketosis I don't get why anyone would want something like this. You don't even need a ketone meter!

[greendeane]

The background music is not in the background. Next time don't use a deaf editor.

[genobrappbrapbates]

Awesome to know cause i have lots of friends in the pruvit community that keep telling me i can enjoy sweets with there supplements and not worry. Sounded crazy to me. And just cant trust those pyramid scams... this vid just saved me money. Ill just stick to my keto lifestyle

[josac]

Were they on a carb restriction diet during the experiment?

There is no need for this stuff. I have been in ketosis for six months now. There are days in which I am really not hungry. I have been burning accumulated fat in this period with no need of this liquids...