The Giveaway
Got a question or an observation about the book, the GEM method, the author, or the tour? If not, just say, “Hello!” Comments at each stop earn entries in the Giveaway for a chance to win one of four signed print copies (If you live outside the U.S. a free digital copy will be substituted due to the high costs of international shipping.)
About A GEM for your Pre- or Type 2 Diabetes

Have you just been diagnosed with prediabetes or Type 2 diabetes and don’t know where to turn, or have you tried different weight-loss programs or medications that haven’t done enough?
GEM—Glucose Everyday Matters offers a practical, science-based approach to preventing and managing prediabetes and Type 2 diabetes by focusing on one powerful idea: reducing blood glucose spikes that can quietly damage health, energy, mood, and motivation.
Developed from decades of clinical research and real-world coaching, GEM helps readers understand why blood sugar rises—and how small, realistic choices can improve it. Rather than rigid diets or exhausting exercise plans, GEM teaches flexible strategies that fit everyday life: eating smarter, moving with purpose, understanding your body’s signals, and using glucose feedback as a tool for empowerment.
Inside this book, you will discover how to:
• Lower blood sugar naturally and sustainably
• Reduce cravings, fatigue, and energy crashes
• Lose weight without feeling deprived
• Improve motivation, confidence, and emotional well-being
• Use simple movement and meal strategies to reduce glucose spikes
• Personalize diabetes management to fit your lifestyle and goals
• Build lasting habits that support long-term health
Whether you are newly diagnosed, trying to avoid diabetes, struggling despite medications, or supporting a loved one, GEM provides a compassionate, evidence-based roadmap toward better health—one manageable step at a time.
This is not about being perfect.
It is about discovering what works for you and making meaningful changes.
To learn more about diet and blood glucose control, see A GEM for your Pre- and Type 2 Diabetes at your favorite retailer here: https://books2read.com/GEM
Becoming Aware of Choices
How Do Carbohydrates Really Affect Blood Glucose (BG)?
There are three classes of foods, called macronutrients: carbohydrates, proteins, and fats. These categories can be further divided into many subgroups. Of these three macronutrients, carbohydrates are the primary nutrient that significantly raises blood glucose (BG). Most foods contain a combination of all three macronutrients. See the examples in the table below.
Standard reference estimates are provided.
| Food / Beverage | Carbohydrates (g) | Fiber (g) | Protein (g) | Fat (g) |
| 6 oz grilled salmon | 0 | 0 | 34 | 18 |
| Red wine (5 oz) | 4 | 0 | 0 | 0 |
| Cabbage (1 cup, raw) | 5 | 2 | 1 | 0 |
| Peanut butter & jelly sandwich | 40 | 4 | 10 | 16 |
| Potato chips (1 oz) | 15 | 1 | 2 | 10 |
| Oatmeal with raisins (1 cup oats + 2 tbsp raisins) | 49 | 5 | 6 | 3 |
| Whole milk (8 oz) | 12 | 0 | 8 | 8 |
| Raisin bran with whole milk (1 cup cereal + 1 cup milk) | 58 | 7 | 13 | — |
This table illustrates an important point: not all foods are created equal when it comes to macronutrient composition.
Even more importantly, not all carbohydrates are the same. As shown on nutrition labels, some foods contain fiber, a form of carbohydrate that is not digested and therefore does not raise blood glucose. To estimate the carbohydrates that actually affect BG, you can calculate net carbohydrates by subtracting grams of fiber from total carbohydrates.
Some ketogenic and “low net carb” products also include sugar alcohols, which are carbohydrates that may be only partially absorbed, digested more slowly, or excreted before fully impacting blood glucose. For this reason, some products subtract both fiber and sugar alcohols to estimate net carbohydrates.
Why does “net carbohydrate” matter?
Researchers at the Joslin Diabetes Center have estimated that, on average, one gram of carbohydrate raises blood glucose by about 4 mg/dL (though individual responses vary).
Using the examples above, a meal of grilled salmon, cabbage, and red wine might raise blood glucose by approximately 28 mg/dL, while a peanut butter and jelly sandwich with a bag of chips and a glass of milk might be expected to raise it by approximately 248 mg/dL.
Understanding these differences highlights the powerful role that food choices can play in blood glucose management.
To learn more about diet and blood glucose control, see A GEM for your Pre- and Type 2 Diabetes at your favorite retailer.
If you have had type 2 diabetes (T2D) for 24 months or less and would like information about our ongoing NIH GEM study, contact Jacqueline Rodriguez at ZMT8XG@uvahealth.org or 434-422-2653.
Food Choices
About Daniel J. Cox

Daniel J. Cox (Dan) is a professor of Psychiatry, Internal Medicine and Ophthalmology at the University of Virginia Health Sciences Center and a member of the Center for Diabetes Technology. He is a longstanding investigator of behavioral diabetes- how behavior affects diabetes and how diabetes affects behavior. His research has been funded by the National Institutes of Health and industry (LifeScan, Abbott, DexCom, Lilly).
In 2010 he shifted his research focus from type 1 to type 2 diabetes (T2D) following his own diagnosis of T2D. He was not optimistic about losing weight and was not thrilled about a lifetime of medication, so he developed an alternative and effective way of managing T2D. Glucose Everyday Matters focuses on preventing high blood glucose (BG) by choosing foods that do not raise BG much and by lowering high BG with physical activity. Since an initial diagnostic A1c of 10.3 (reflecting a three-month BG average), GEM has put his diabetes in remission-lowered his A1c below 6.5 with no medication. This transformation was achieved with significant critique, support, and help from his wife Debbie.
Tour Schedule
Mon. 7/20: Short Trailer & “How Does GEM Work?” – Poetry by Mich: Hotel by Masticadores: Masticadores Philippines
Tues. 7/21: “Becoming Aware of Choices” & “Food Choices”– Roberta Writes
Wed. 7/22: “Dietician Monica Davis Interviews Daniel J. Cox” – Patty’s Worlds
Thurs. 7/23: “Bringing Down BG with Pysical Activity” & “Gem’s Research Findings” – Undawnted
Fri. 7/24: “Protecting and Extending Your Investment” – Writing to be Read
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It sounds like a helpful guide.
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I think so too. Thanks, Merril
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You’re welcome, Robbie!
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💗
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The publishing of this book is done with the intent of helping as many people as possible, so I do hope so. Thaks for Commenting, Merril. 🙂
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You’re welcome!
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I have a blood glucose monitor even though I don’t have diabetes. It helps me stick to a lower-carb diet, and I’ve DEFINITELY seen health benefits. Cox’s book sounds like a valuable resource.
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Hi Priscilla, I thought this book sounded very insightful. Thanks for visiting.
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It has a lot of research behind it, so hopefully. I think that’s smart, Priscilla, since early detection makes such a difference, and it never hurts to eat healthier. 🙂
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This sounds like an interesting guide to Type II Diabetes.
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Thanks, Kymber. I found this article very interesting.
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Thanks for commenting, Kymber. 🙂
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My pleasure. 🩷🌺
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Congratulations, Kymber! You’re a winner. Please contact me at KLBWordCrafter@gmail.com to claim your copy of “A GEM for your Pre- or Type 2 Diabetes”. 🙂
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Oh my goodness! Thank you!
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Please put “GEM winner” in the subject line.
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Sharing to help spread the word of Dr. Cox’s new book!
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Thank you, so much, Liz. 🙂
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You’re welcome, Kaye.
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💖
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Congratulations, Liz! You’re a winner. Please contact me at KLBWordCrafter@gmail.com to claim your copy of “A GEM for your Pre- or Type 2 Diabetes”. 🙂
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Please put “GEM winner” in the subject line.
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❤️
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🙂
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pvcann, you are a winner of a signed copy of “A GEM for your Pre- or Type 2 Diabetes”, if in the U.S.). Please contact me at KLBWordCrafter@gmail.com. 🙂
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Paul, I see you are in Australia, so you will receive a digital copy.
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Please put “GEM winner” in the subject line.
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Honoured – sadly not in the US, but many thanks.
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Paul, please contact me anyway. I have a digital copy for you.
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O wow!
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O – I did send a note 😀
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VERY helpful information, Robbie!
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I’m pleased you found it useful, Dave
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Hi Dave. Glad to know you found this helpful. The book is very easy to access and use. 🙂
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The information in this book sounds like it could be helpful for a person, Roberta. I’m glad you posted it.
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Thanks for your comment, Tim. It is an insightful method of managing your general health, as well as Diabetes. 🙂
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You’re welcome, Kaye. 😍 It might be good for this old guy to go over all of it.
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A lovely tour stop, Robbie. Thank you for hosting.
I’m afraid Dr. Cox is not a blogger and is having trouble responding on the tour sites. He has been unable to comment so far. He’s not sure how to sign in when asked and can’t seem to make his comments show up. He was hoping to make virtual appearances at each stop, but I think he’s a little lost in the blogo-sphere. 🙂
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Hi Kaye, no worries. I can manage the comments.
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Many thanks for the introduction, Robbie!!
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Hi Rebecca. Thanks for visiting. 🙂
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I always enjoy stopping by!! So many exciting ideas and connections!!
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I’m glad to know that 🤗
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🤗🤗🤗
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💛
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My pleasure, Rebecca
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Wow, the table is certainly enlightening. Raisin Bran – no wonder I gained so much weight during my RB craving period! LOL Great review, Robbie.
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Thanks, Marsha. This is an insightful and interesting book.
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It sounds helpful. Fortunately, I’ve never had to battle that disease. Yay! I missed one!
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Hi Marsha, Thanks for visiting. 🙂
I’m glad you don’t battle with diabetes. As you pointed out, the book can be helpful in just living a healthier lifestyle, as well.
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Yes. Vince is battling fatty liver that has nothing to do with drinking, but lots to do with sugar and fats. We are both trying to cut back on both, and cutting back on volume, too. Thanks for your comment. 🙂 xxx
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I’m glad you are talking the right steps to preserve your health. Marsha
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Thanks, Robbie!
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🤗
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💞
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This book may have some helpful suggestions which could be used to that end. It is filled with useful information. Lots of factrs about food which you may not know. 🙂
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🙏
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