Keto Diet Pills and Supplements May Hurt Your Health and Waste Your Money
January resolutions are in full swing, so you’ve probably heard of the ketogenic diet, the trendy eating plan that calls for getting more than 70% of your total calories from fat, about 20% from protein, and 10% or less from carbs. The whole idea is to enter a metabolic state known as ketosis, when your body burns fat for fuel.
You may have also heard about a Keto 30 Challenge, a month-long diet program marketed by KetoLogic that involves a whole slew of special supplements. Honest Keto Diet, a company recently featured on Shark Tank, sells similar weight-loss pills. Pricey keto supplements include ingredients like ketones designed to suppress appetite, electrolytes for the dehydrating effects of the diet, certain vitamins and minerals, and even caffeine.
The packaging claims are abundant too: They allege they’ll help you achieve ketosis within “three days,” “fuel performance,” and “clear brain fog,” among other benefits. The problem is that these powders and pills come at a hefty financial cost, and could have some unintended, undesirable consequences for your health.
While the keto diet gives me pause for a number of reasons (and you can read all about them here), these keto supplements worry me even more. Here’s what you need to know before you spend $150 on a 30-day “challenge.”
Keto supplements may mess with your metabolism.
When you’re in a starvation state, your body uses ketones for energy in a similar way to how they’re used on a ketogenic diet — for fuel — and converts them into glucose. In this state, all those ketones also stimulate an increase in leptin (the hormone that makes you feel full) and a decrease in ghrelin (the hormone that stimulates your appetite). The higher your blood concentration of ketones, the less hungry you feel. Why? Because in the history of human evolution, periods of famine forced our bodies to adjust so that you would be less likely to eat something poisonous if there was no food available to you. Here in the 21st century: Taking supplemental ketones to help enhance this biological process will likely decrease appetite by raising blood levels of ketone bodies.
What’s the catch? The ketogenic state has been linked to increasing satiety hormones and decreasing hunger hormones — well-researched during the initial phase. But once you’re off the keto diet after 30 days, the appetite-suppressing hormones will increase significantly from your baseline. Meaning that you’re likely to feel physically hungrier than you did