A lot of people on the Keto diet take their vacation as a way to splurge and eat whatever you want. It’s important to realize that your body isn’t used to the old way of eating, it’s used to Keto. So, yes – you will most likely gain weight back, and gain it back very quickly. Just make sure you know that what you eat matters. If you are going to have treats, then it helps to make sure that 90-95% of what you are eating is Keto friendly and then include your treats in the other 10% of what you are eating. This will help with the getting to carried away eating non keto foods. 

After I had spent some time thinking about it and reading the labels on every brand of eggnog at Walmart, I decided to try my hand at making my homemade keto eggnog. I won’t lie, I am an eggnog snob, and I have tasted lots of different brands and homemade versions over the year. My favorite brand is Southern Comfort Eggnog, and I have never tasted homemade eggnog that I enjoyed. That’s why I decided not to get excited about this little experiment. I plan to make five different eggnog recipes, and this was my first attempt. I tasted this recipe immediately after making it, and I wasn’t very impressed. Like many eggnogs, I have tried in the past it was bland and didn’t taste like my favorite brand.

First off, there’s the taste. Consumers want to have their cake and eat it too. At the end of the day, if the sweet indulgence tastes more like a bar of chalk, then there is a high probability that consumers will not be running out to buy it. In my opinion, most companies have nailed this aspect down to some degree. The majority of bars, cookies, or other low-carb snacks that I have tried actually taste really good. However, even if a product can meet the consumer standards with respect to taste and quality, the true separation occurs at the level of fiber source. The buzz words “high-fiber” and “low net carbs” are exploding in today’s society. Thus, companies are attempting to find ways in which they can add fiber to their products, thereby boosting their nutritional profile and simultaneously decreasing the number of net carbs. This now prompts the question: are all fiber sources nutritionally the same, and if not, what does this mean for the consumer?
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Low in carbs and high in fiber, lupini beans (aka lupin beans) are perfect for those on keto who are looking for a high-protein, high-fiber snack. Never heard of them? This yellow legume is hot on the heels of the edamame and fava bean as an on-trend nibble for the health-conscious consumer.  One cup of cooked lupini beans contains 4.6 grams of fiber—about 19% of the recommended daily value. However, ready-to-eat branded lupini bean snacks often contain even more. “I've noticed that the amount of carbs/fiber can vary greatly between lupini bean brands,” says Yule. “To make sure that you are choosing a food that is keto-friendly, be sure to check the label.”
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.
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One of the first studies to examine IMO syrups[2] 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.[4] 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.
Breath Hydrogen is an assay that indicates in “real-time” whether or not a particular nutrient is being digested. Upon consumption of a standard carbohydrate (e.g., rice), you can see that it is broken down in the small intestine, and, subsequently, blood glucose rises. If the carbohydrate is not digested in the small intestine, it moves into the large intestine. This indicates that it is a “true fiber.” In the large intestine, bacteria digest the fiber through a process called “fermentation.” In doing so, the bacteria produce hydrogen ions (H+) that circulate into the bloodstream, through our lungs, and is then exhaled outward. We monitored a subject consuming either IMOs or SCF respectively and then tracked the variables listed above for 150 minutes following consumption.

One study compared the glycemic response of SCF to the glycemic response of glucose in 12 healthy adults during a randomized, controlled, crossover study.[6] The findings of this study revealed that SCF had a significantly lower incremental glucose and insulin response than that of the glucose control. Additionally, another study observed a significant lowering effect on postprandial (during or after food consumption) blood glucose and insulin (coinciding with an increase in fat oxidation) upon consumption of 55 grams of SCF in 18 overweight adults, compared to a full calorie control.
After I had spent some time thinking about it and reading the labels on every brand of eggnog at Walmart, I decided to try my hand at making my homemade keto eggnog. I won’t lie, I am an eggnog snob, and I have tasted lots of different brands and homemade versions over the year. My favorite brand is Southern Comfort Eggnog, and I have never tasted homemade eggnog that I enjoyed. That’s why I decided not to get excited about this little experiment. I plan to make five different eggnog recipes, and this was my first attempt. I tasted this recipe immediately after making it, and I wasn’t very impressed. Like many eggnogs, I have tried in the past it was bland and didn’t taste like my favorite brand.

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.[5] 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.

IMOs can be made in several ways, but they are primarily derived from a sugar called maltose. IMO is promoted as a prebiotic fiber with a light sweetness profile. Its functional properties (i.e., moisture retention, low viscosity) make it well-suited for nutrition bars, cookies, candies, and the like. In order to fully understand IMOs and how the body processes them, we first need to understand how starches are digested in the body. Starches, also known as polysaccharides, are long and sometimes branched chains of glucose molecules. Initially, starch digestion begins in the small intestine with an enzyme called α-amylase. A-amylase breaks these long glucose chains into much shorter chains, called oligosaccharides, which are composed of anywhere from two to approximately 10 glucose units. Following this, specific enzymes on the brush border of the small intestine break down these oligosaccharides even further, into individual glucose units (monosaccharides) which are then absorbed.

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