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.
A close relative of maltose is a molecule known as isomaltose (typically found in items such as beer and honey). The biggest difference between maltose and isomaltose is that isomaltose is joined together by an α-1,6 chemical bond, rather than an α-1,4 chemical bond. Scientists suspected that by adding a certain enzyme (transglucosidase) to high maltose syrup, they could change the bonds from α-1,4 to α-1,6, thereby making it more resistant to being broken down by the enzymes, as described above, when compared to maltose. Again, while this sounds excellent in theory, it is not necessarily what happens in our bodies. In fact, isomaltose (and thus, IMO syrups used in some of these products) is broken down by certain enzymes on the brush border of the small intestine.[2] Though the α-1,6 bond breaks down slower compared to the α-1,4 bond, these IMO syrups, which often use a blend of di-and oligosaccharides, ultimately metabolize into small amounts of glucose and maltose[2] and thus should be viewed as a slow digesting carbohydrate rather than a true fiber.
To figure out the correct amount of fiber for your body, try experimenting. If you’re on the keto diet, start with 15-20 grams of total dietary fiber per day from a mix of soluble and insoluble fiber for several weeks, then consider adding 3-5 grams at a time as needed to see how you feel. Remember that some people actually feel worse when they boost their fiber intake[*][*][*].
In contrast insoluble fiber, which does not dissolve in water, is inert to digestive enzymes in your upper gastrointestinal tract. While some forms of insoluble fiber (like resistant starch) can ferment in your colon, most insoluble fiber moves through your digestive system relatively unchanged, absorbing water as it goes, eventually adding bulk to your stool and easing your bowel movements.
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.
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. 

I still crave eggnog as we get closer to Christmas. Luckily, it’s pretty easy to make a keto, sugar free version of eggnog. Keto eggnog is a combination of cream, and/or nut milk, egg yolks and your favorite sweetener. The hardest part is heating iy on the oven slowly to make sure the egg yolks don’t curdle. Even if you do curdle, you can strain them out and you will be left with creamy low carb eggnog.


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.

Even so, keto followers may experience a rise in LDL cholesterol, sometimes called “bad” cholesterol because too much of it can lead to a buildup of plaque in the arteries, which can increase the risk of heart disease. And that’s where fiber can help. However, many high-fiber foods, like beans, fruits, vegetables, nuts, seeds, and whole grains, are also high in carbs, so they're limited on the keto diet.

This recipe has been highly requested as of late, so we figured we should have our go at it so you can enjoy the holidays to their full extent this year! Our Keto Eggnog is not only easy to make, but replicates the eggnog you use to drink pre-keto to a tee. I’ll be honest, I’ve never had eggnog, but Matt used to drink it every year and couldn’t stop raving about how exact our keto version tastes. Matt isn’t quick to give a compliment so I think it’s safe to assume we have a winner with this recipe!
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.

7. Bouhnik, Y., Raskine, L., Simoneau, G., Vicaut, E., Neut, C., Flourié, B., … & Bornet, F. R. (2004). The capacity of nondigestible carbohydrates to stimulate fecal bifidobacteria in healthy humans: a double-blind, randomized, placebo-controlled, parallel-group, dose-response relation study. The American journal of clinical nutrition, 80(6), 1658-1664.
"Once you have a kitchen, you have control over what you purchase and what you eat," Addison Johnson wrote on Dietingwell. "An added benefit of this style of travel, other than the fact that you can stick to your keto diet effectively, is that you get to experience the local side of life. Going to grocery stores, choosing from local ingredients, and cooking for yourself will help make you feel like you’re a part of the culture, instead of only a visitor."
Eggnog is delicious all year round, but far from keto friendly. However, I found a simple way to mimic the milk that is normally found in eggnog, so that you can’t even tell the difference! If you use heavy whipping cream as the majority of the base and lighten it up with some flax, almond or cashew milk you’ll get the perfect thickness for your eggnog. Aside from the milk the rest is perfectly suited for a low carb diet, including the optional whiskey you add *wink face*.
I’ve been on the Keto zone diet for over 2 months and finally feel energy and a sense of fullness. I have logged purposely the meals you suggested in your book however when I test to see how I’m fairing in fat burning with the ketones sticks I come up in the middle. I tried to adjust here and there to see if my percentages are aligning to the 70-15-15 as you suggest but it still comes up in the middle. In other words I’m average in the fat burning process. Is this just stubbornness on my body’s part?I’m slowly loosing weight but slowly. I exercise but that hasn’t changed anything. Thanks for your help!
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. 
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.”

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary, and testimonials are not claimed to represent typical results. All testimonials are by real people, and may not reflect the typical purchaser’s experience, and are not intended to represent or guarantee that anyone will achieve the same or similar results.
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.”
This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Dr. Axe nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program.
If you can, try to stay at a hotel or hostel that has a kitchen which guests are allowed to use. You can also elect to find home-share style lodgings, as people often rent out their homes during peak vacation times for tourists to use. Once you have a kitchen, you have control over what you purchase and what you eat. An added benefit of this style of travel, other than the fact that you can stick to your Keto Diet effectively, is that you get to experience the local side of life. Going to grocery stores, choosing from local ingredients, and cooking for yourself will help make you feel like you’re a part of the culture, instead of only a visitor.
I’ve been on the Keto zone diet for over 2 months and finally feel energy and a sense of fullness. I have logged purposely the meals you suggested in your book however when I test to see how I’m fairing in fat burning with the ketones sticks I come up in the middle. I tried to adjust here and there to see if my percentages are aligning to the 70-15-15 as you suggest but it still comes up in the middle. In other words I’m average in the fat burning process. Is this just stubbornness on my body’s part?I’m slowly loosing weight but slowly. I exercise but that hasn’t changed anything. Thanks for your help!
Not all the extra ingredients are keto friendly. Some of the dressing mixes are high in carbs as well as some of the extra ingredients such as tortilla strips and croutons. Depending upon how many carbs you eat in a day you may want to avoid those mixes, or at least remove some of the ingredients, and stick with the mixes that only contain salad greens.

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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. 
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