Alex is editor in chief of Bodyketosis, an author, low-carb enthusiast and a recovering chubby guy who reclaimed his health using the ketogenic lifestyle. The need for the keto life began after his aunt and cousin were diagnosed with type 2 diabetes and he was next in line. Through personal experience and extensive scientific research, Alex offers insightful tips for everything keto.
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One of the first studies to examine IMO syrups had six subjects consume 25 grams of IMO syrup. These researchers found that glucose levels increased from 109 mg/dL pre-ingestion to a peak of 136 mg/dL 30 min post-ingestion. Additionally, insulin rose to nearly parallel levels with that of glucose from 4.8 μU/mL pre-ingestion to nearly 32 μU/mL at 30 min post-ingestion. These values clearly indicate that some digestion is occurring. Furthermore, these researchers found that IMO was about 83% as digestible as maltose under resting conditions and about 69% as digestible after the exercise period. Taken together, this suggests that a large majority of the carbohydrate in the IMO syrup was, in fact, digested, absorbed, and metabolized.
Lastly, one of the advertised benefits of IMO is possible prebiotic activity. Prebiotics are critical, as they feed the beneficial bacteria in our digestive system, specifically in the large intestine. These bacteria have several amazing functions, such as lowering body fat, improving insulin sensitivity, and lowering depression. Two “gold standard” prebiotics in the industry are inulin and fructooligosaccharides (FOS). Inulin and FOS are non-digestible carbohydrates that robustly increase beneficial bacteria. The challenge, however, is that both inulin and FOS, due to their rapid digestibility by intestinal bacteria, result in low gastric tolerance, and, ultimately, gastric distress. Additionally, inulin and FOS, when added to protein bars or other goods, may degrade over time into individual sugar units. Regardless, one study comparing inulin to IMOs, found that the prebiotic activity in inulin is 14 times greater than that of IMOs. This is logical because, as you recall from above, approximately 70% to 90% of IMOs are digested. As such, only a small portion of these prebiotic fibers make it to the large intestine, in which two out of three studies have demonstrated that this small portion may indeed have some prebiotic effects.
The increased awareness regarding the importance of fiber, in addition to its distinct metabolic effects, has resulted in a surge of companies switching to an alternative fiber known as soluble corn fiber (SCF). Interestingly, SCF has been available on the US market since 2007 and is used in foods and beverages across the Americas, Europe, and Southeast Asia. SCF is produced through an extensive process: corn syrup is exposed to a suite of enzymes for at least 48 hours, some of which are found in the brush border of your small intestine, as well as the pancreas. Notably, a large majority of the corn syrup contains easily digestible carbohydrates; however, a small portion is, in fact, not digestible. At the end of this enzymatic exposure, a stream of digestion-resistant carbohydrates remains and is subsequently filtered several times. The resulting product is a “true fiber” that contains a mixture of α-1,6, α-1,4, α-1,2, and α-1,3 glucosidic linkages, which, as mentioned above, contribute to its low digestibility.
Dr. Ryan P. Lowery is the CEO of Ketogenic.com, author of The Ketogenic Bible, President of the Applied Science and Performance Institute and KetoPhD™. His mission is to spread awareness around the Ketogenic Lifestyle and its’ many benefits beyond body composition. He earned his BS and MS in exercise physiology and exercise and nutrition science from the University of Tampa and completed his doctorate work at Concordia University in Health and Human Performance with a focus on “The Effects of a Well-Formulated Ketogenic Diet and Exogenous Ketone Supplementation on Various Markers of Health and Body Composition in Healthy and Diseased Populations.” Over his career, Ryan has published over 150 papers, abstracts, and book chapters on human performance and sports nutrition and has dedicated his life to educating the masses. In his free time, Ryan enjoys spending time with his best friend, Scoot the Keto Pup, jet skiing, and traveling around the world. The way to his heart is through a good glass of wine and Keto desserts.
i am an eggnog fangirl too! i like to separate the egg yolk from the whites, blend everything except the whites, whip the egg whites till stiff then fold into the nog for a frothier fuller experience. nutmeg ground on top, of course! i never tried whipping the cream first. might be a little too thick, but also could be fun! esp if you use this to top coffee w a little rum or keto kahlua!
Keto Diet practitioners who overeat a little on vacation shouldn’t chastise themselves too harshly. Life is about balance, and the Keto Diet helps practitioners regain control over their eating habits, but it shouldn’t be an overbearing burden. As long as you can get back to your diet plan after vacation, and you don’t use your holiday as an excuse to go back to your old way of eating, eating outside of what your Keto Diet plan recommends doesn’t have to be a huge problem.