blocker supplements : no substitute for keto done right


There are a myriad of supplements that will help your keto lifestyle no matter your goal, be it weight loss, general health, diabetes management, or to help control epileptic seizures. When the ketogenic diet is done right it can be enhanced with nutritional add-ons that work with keto to help further the effects of the diet: MCT oil, Apple Cider Vinegar, daily multi vitamins, fish oil, and ketone complexes have all been shown to assist the ketogenic process.

However, there is a new group of supplements that have ketoers far and wide looking up from their tracking apps and carefully followed recipes to see if they offer true value to the keto way of life. These newer supplements are blockers. Carb, Sugar, and Fat blockers that promise to inhibit a large portion of digestible carbohydrates, sugars and fats. The idea being that you can now eat the carbs and sugars that keto forbids, because these miracle supplements will cancel them out, rendering them ineffective against your daily carb and sugar count and thereby keeping you in keto.

First, use your logical brain here. Do blockers sound too good to be true? Then they probably are. But let’s take a more in depth look at blockers so we understand why they aren’t keto-friendly miracle drugs.


Some less than reputable sources claim that carbs can be blocked and cancelled out of the human body after being ingested. These snake-oil sellers have hit on a wonderful new market for their false dreams with the rise of the keto diet and its extremely low carb goals. Many of these supplements claim you can eat all of the carb-heavy treats you enjoyed before beginning the keto diet, “have bread, corn on the cob, and mashed potatoes with dinner again as long as you take our carb blocker pill.” These pills are marketed as weight loss supplements but have no FDA approvals, no clinical testing, and no peer reviewed studies to back up any of their claims; as a matter of fact, it’s quite the opposite.

Here is how carb blockers work and why they aren’t ideal for keto.

Carb blockers are more commonly referred to as Starch Blockers but have been re-branded to use the word Carb to appeal to low carb dieters like those on keto. Starches and complex carbs are broken down in your gut with the help of a digestive enzyme called Amylase. Amylase is the only way to separate the starches you eat for distribution into your body as calories. Starch blockers essential block the production of amylase which in turn leave starches and complex carbs you’ve eaten un-digested and unable to be absorbed into the body. Instead, they are deposited as waste and leave the body with no benefit to your system. Now, there are actual prescription versions of starch blockers such as Precose and Glyset but they are used for very specific purposes in people with type 2 diabetes or those who cannot control blood sugar spikes on their own any more. Anything blocker not prescribed by a doctor is considered a supplement and many supplements claiming to block carbs have unlisted ingredients such as stimulants which can be harmful to people with diabetes and can increase the appetite of your average ketoer. Nice little trick, huh? Take our supplement so your carbs are nullified (but not really) then rely more on our supplement because it makes you hungrier.


Blocking sugar is a huge part of keto. Only ketoers block sugars in the most natural way possible, when sugar is in the area we say, “no thank you” and turn around. Block sugar by not eating it. Simple. In 30 days or so the cravings are gone and wanting to eat sweets with no nutritional value will be a distant memory. Sugar blocking pills are especially damaging to keto and the ketogenic mindset because they’re delaying and hindering a major benefit of keto, which is your breaking of the hold sugar has had on you your whole life. Not to be too dramatic here, but for the sake of analogy, would you want to take a Heroin blocker pill that likely doesn’t work or at best has minimal effect in negating heroin’s terrible side effects? Or would you rather just kick heroin once and for all? Stopping sugar’s harmful effects is better than keeping a steady stream in your blood with the potential to negate a few grams here and there (if these sugar blockers actually worked).

The theory, and at this point it is only a theory since none of this sugar blocking supplementation stuff has been shown to work, is that there are two minerals that will help your cells in absorbing blood sugar. Chromium and Gymnema Sylvestre are thought to be able to aid in this absorption which minimizes cravings. Gymnema Sylvestre is thought to closely replicate glucose in your system and it’s theorized that it will bind to cell receptors rather than the sugar.

At best these blockers limit the amount of sugar you receive, at worst they are overpriced placebos. Either way, they won’t unnaturally eliminate sugar from your system. You can’t eat a bowl of ice cream, pop a magic pill, and expect to see the results that keto offers. The only way to block sugar is not to eat it.


There is 1 fat blocker that has passed FDA testing and has shown some success in very overweight individuals who can’t exercise. All other fat blockers try to ride the clinical success of this single approved medication by claiming similar ingredients and results. But when closely examined, these imitators have no real success and actually act more like a laxative than anything else.

So should you take fat blockers? This one should be a no-brainer. Keto runs on fat. Anyone who has done any research on how the keto diet works knows by now that we are replacing glucose as a fuel with ketones. Ketones are a byproduct of fat. Eat more fat, moderate protein, and very low carbs, these are the tent poles of keto. We don’t want to block fat, we love fat, we live off of fat. If you block fat while on the keto diet you are missing the point entirely. Why fat blockers are being hocked as dietary supplements to ketoers is beyond comprehension. It’s as if the marketers no nothing about keto and how it works. It’s almost like they’re just trying to make a quick buck by attacking anything with the word “diet” in it. Don’t be fooled, they don’t have your best interests in mind. Don’t block fat, it’s your fuel!


A lot of people out there make a lot of money marketing dietary supplements to those of us eager to lose weight or maintain a healthy lifestyle. The temptation to cut corners in order to speed the weight loss process along is always there, but there is not magic pill. The closest thing to magic in the diet world is keto. It’s not as easy as taking pharmaceuticals, but -when done correctly- keto will show results faster and leave you in a healthier, stronger state.

Do your research before committing to any supplements. See what has worked well for others and read the cautionary tales people have published about faux supplements or designer dietary drugs that make big promises and show little by way of results.

And remember, anything claiming to do what these blockers do, which is to drastically alter your body’s natural processes and chemistry, should come from a trained medical professional.

For a list of the best supplements to aid you in your keto journey, visit us at We carry all of the best nutritional supplements for the keto way of life.