“Intermittent fasting can be really challenging if you have an ever-changing schedule,” adds Hultin. “If you're traveling and crossing time zones, it could be very difficult to follow. It might be best for people with more stability in their lives.” Intermittent fasting isn’t safe for people with type 2 diabetes, children, pregnant or lactating women, or anyone with a history of an eating disorder.
In nature, historically, there were very few ways to store carbs – which were available only for a short time seasonally. The solution to this is that when eating the available fruit in the autumn the sugars switch off the fat burning system and then use insulin to store the sugars as body fat. Carbs signal our body to go into fat storage mode. When the carbs run out then slowly the fat burning more resumes – first of all feeding ketones to the brain and other vital organs and then eventually to the muscles.
Wouldn’t it be great if life came with a magic remote control that made the bad parts speed up and the good parts slow down? You could hit FF at the beginning of every workday, and RWD at the end of awesome date. All the vacations, holidays and parties could move at the pace of a Kenny G song, and all the endless conference calls could spin by faster than Nicki Minaj’s hairstyles.
What the diet guru says: According to David Zinczenko, author of The 8-hour Diet, eating all your meals within a set window is the key to burning fat. ‘By carving out an eight-hour window in which to eat to your heart's content, you'll burn your body's fat stores effortlessly. The science is actually simple: for several years, researchers have been producing remarkable weight loss results in people using "intermittent fasting". In this case, fasting is about eating whatever you want, but staying within a sensible eight-hour window. This gives your body the chance to burn away your fat stores for the energy it needs.’
However, the meta-analysis was riddled with confounding variables — one of which being their lackadaisical definition of a low-carb diet. The researchers identified a low-carb diet as a diet where less than 45% of its calories come from carbs. With such a lax criterion for low-carb, it is difficult to tell if a true low-carb diet (i.e., fewer than 26% of calories coming from carbs) is genuinely the best dietary option for type 2 diabetics.
The truth is though, her reaction is part of the problem. “I can’t believe your numbers improved so drastically without taking the medication.” THAT is the main problem with our medical community. They have been taught, and most have bought into the lie, that everything is better with medication. Medication is the go to. That is why we have so many health issues in this country. Let’s eat a crappy diet because our government/medical community recommends it…and then when that diet leads to medical complications…let’s throw drugs/medication at it. Many, if not the majority, of the medical issues we have could be done away with if we actually ate as we should. But no…we want cake.
Mike, that’s exactly right! With T2, we no longer have the option of eating carbs, sugar and all the good stuff. Why can’t dieticians and the ADA recognize that and quit trying to shove all those carbs down our throats? I don’t get it… I seriously don’t. And I think the author of this article would do an about face is she actually had diabetes. It’s amazing the amount of people who claim to be experts that seriously don’t get it!! It I had Celiac Disease, I couldn’t eat gluten… at all. Why is the same not recognized for diabetics? Our meters show us when we are eating too many carbs. Its VERY clear as the number goes very high. What do the professionals not get about that? It’s been the most amazing thing about this whole process for me and I just can’t believe how biased people are against a very low carb diet for managing diabetes. You think that because people can’t maintain that kind of diet for long term makes it OK to go ahead and be against it? Did it ever occur to any of the professionals that by recommending a low carb diet it might actually encourage people to maintain it? Instead, you are giving them excuses and reasons to eat way too many carbs!! Last August 2016 I was diagnosed with T2, with an A1C of 12.7. My last blood test showed an A1C of 6.2 (July 2017) and I had reduced some of the meds I was originally on. I am still working on lowering my numbers. The whole process has been a slow progression to keto and I had to stumble on the whole thing myself through my own research. I tried vegan at first and quickly realized that I was eating too many carbs. Then I went low carb but knew I could do better. When I tried the Keto diet, my numbers went much lower. You get over the sweet addictions. You get over the bread addictions and you find suitable substitutions. You do what you have to do. But by not recommending an ultra low carb diet simply because you don’t think people can do it is ridiculous! It is basically telling people that they can’t possibly manage their own lives… they can’t possibly make their own, good choices. And then, because you are the authority, you are giving them reasons to not even try. You defeat them before they even begin. It just amazes me!
By restricting carbs to the degree that the keto diet recommends, you will stimulate the production of ketones and eventually enter nutritional ketosis. As a result, you will start burning more ketones for fuel. Ketones have also been found to help increase weight loss, lower glucose and insulin levels, decrease insulin resistance, and improve energy efficiency.  
I read the book while sitting by the pool that Sunday afternoon and informed my girlfriend that we were going to be starting a new diet on Monday. “Oh really,” she asked. “What is so good about this diet?” I told her about the salads, fresh fruit and vegetable dishes, and her favorite part, how we would be replacing steak night with chicken and much more fish. “This is the perfect diet for summer!”
Recently, four studies have re-examined the effect of carbohydrate restriction on type 2 diabetes. One outpatient study enrolled 54 participants with type 2 diabetes (out of 132 total participants) and found that hemoglobin A1c improved to a greater degree over one year with a low-carbohydrate diet compared with a low-fat, calorie-restricted diet [5,6]. Another study enrolled 8 men with type 2 diabetes in a 5-week crossover outpatient feeding study that tested similar diets . The participants had greater improvement in glycohemoglobin while on the low-carbohydrate diet than when on a eucaloric low-fat diet. The third study was an inpatient feeding study in 10 participants with type 2 diabetes . After only 14 days, hemoglobin A1c improved from 7.3% to 6.8%. In the fourth study, 16 participants with type 2 diabetes who followed a 20% carbohydrate diet had improvement of hemoglobin A1c from 8.0% to 6.6% over 24 weeks . Only these latter three studies targeted glycemic control as a goal, and two of these were intensely-monitored efficacy studies in which all food was provided to participants for the duration of the study [7,8]. Three of the studies [6,8,9] mentioned that diabetic medications were adjusted but only one of them provided detailed information regarding these adjustments . This information is critical for patients on medication for diabetes who initiate a low-carbohydrate diet because of the potential for adverse effects resulting from hypoglycemia.
Other down sides: There’s an initial period where your body is adjusting to its new carb-free existence, and many people experience symptoms like fatigue, brain fog and nausea for a few weeks. You also end up deficient in important micronutrients, like folate, calcium and potassium, which is why most ketogenic devotees recommend taking multivitamins. Personally, I recommend my clients follow a diet that in its ideal state provides all of the nutrients you need through real, whole foods.
The only books based on the most recent updated Mediterranean and DASH research, include the brand new, high flavor and high impact The DASH Diet Mediterranean Solution and the previous best seller The DASH Diet Weight Loss Solution, both of which can help you harness the health benefits of the DASH diet for weight loss. The DASH Diet Younger You, is pumped up on plants to help you become and look younger from the inside out. It fully supports both vegetarians and meat eaters (as does the Med-DASH book), with meal plans and recipes, and are based on real, unprocessed, and additive-free foods. The essential companion, The Everyday DASH Diet Cookbook will make a great addition to your kitchen collection. These books stand alongside the top DASH diet resource, The DASH Diet Action Plan, to give you a fresh start to healthy eating.
“A healthy diet should be a sustainable eating plan that provides adequate nutrition to support optimal health,” Taylor says. “For many people with diabetes, a low-carb diet is a temporary tool that can be used to support short-term weight loss and improved blood sugar control. However, I typically don't recommend sticking with a low-carb diet permanently, as many micronutrient deficiencies can result from an unbalanced eating plan. I like to think of low-carb diets as a possible ‘stepping stone,’ not a ‘forever diet.’”
As a Certified Diabetes Educator, I was taught to educate my gestational diabetes and pregnant patients with diabetes to avoid fruits and dairy before noon. I know this is hard! That’s when you all are craving that glass of orange juice, but that’s the whole point here. We need you to give up that orange juice for the next six or so months for the sake of your baby. Instead, you can have a real orange with lunch; try it with a spinach salad with tuna salad and whole wheat pita. The nutritional value is pumped up by all those vitamins and the spike on your blood glucose will be reduced dramatically by the fiber in the real fruit combined with the protein you had in your lunch. You can even have a glass of milk; you’ve included all of your necessary food groups, and you are still only at 45 carbohydrates for the whole meal!
Several comprehensive studies and meta-analyses have demonstrated that after a few months or even a year of a low carb diet versus a moderate/high carb diet, there are no significant differences in the amount of weight lost (2,3,4,5). I will say, however, most of these diets are NOT keto and are simply lower carb (i.e. 20%). Also, long-term effects (beyond 1 year) are not often studied due to budgetary constraints, so interpret results as you wish.
Though we singled out quinoa above, whole grains in general (we’re talking cereal, rice, pasta, and more) are conducive to weight loss, especially when they’re used in place of refined—white—grains. In fact, a study published in the American Journal of Clinical Nutrition found that substituting whole grains for refined grains in the diet increases calorie loss by reducing calories retained during digestion and speeding up metabolism. Unlike refined grains, whole grains are packed with satiating, heart-healthy fiber.
Bueno NB, de Melo ISV, de Oliveira SL, da Rocha Ataide T; “Very-low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: a meta-analysis of randomized controlled trials” (2013) British Journal of Nutrition 110(7): 1178-1187. Accessed 4/23/2018 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/6FD9F975BAFF1D46F84C8BA9CE860783/S0007114513000548a.pdf/verylowcarbohydrate_ketogenic_diet_v_lowfat_diet_for_longterm_weight_loss_a_metaanalysis_of_randomised_controlled_trials.pdf
You say keto is a highly controversial topic. For those of us following a keto diet, there is no controversy whatsoever because the diet proves itself efficacious very quickly. I think the real controversy comes in because the ADA has been recommending dangerous levels of carbs for decades now, and they would lose face if they had to change their recommendation and admit they’ve been wrong for so long. You say there are not many studies on the keto diet, and I disagree with you. You’ll find the evidence if you look for it. Eric Westman, Steve Phinney, Jeff Volek and many other researchers have written volumes about this.
Due to the highly restrictive nature of the keto diet, it is not safe for certain populations, including pregnant or postpartum women, children or growing teenagers, or individuals with certain diseases. If you are considering this diet, it is important that you speak with your primary care physician first and work with a Registered Dietitian Nutritionist to make sure you are getting all of the essential nutrients your body needs to thrive.
“We do not recommend the diet,” he says. “It works for weight loss, and the liver insulin resistance we observe might be transient. But the diet is simply not necessary and probably not the best choice for weight loss,” he says. “Ketogenic diets are often very low in fiber, which may have bad effects on gut health and overall health, especially over a long term. Diets high in fiber and low in fat work equally well or better than low-carb plans, in many studies, to achieve weight loss and lower glucose intolerance.”
There are three instances where there’s research to back up a ketogenic diet, including to help control type 2 diabetes, as part of epilepsy treatment, or for weight loss, says Mattinson. “In terms of diabetes, there is some promising research showing that the ketogenic diet may improve glycemic control. It may cause a reduction in A1C — a key test for diabetes that measures a person’s average blood sugar control over two to three months — something that may help you reduce medication use,” she says.