In case you haven’t jumped on the keto train and are wondering what exactly all the hype is about, here you go: The diet is very high fat and (almost) no carb. The ratio of fat to carbs and protein is 4:1. The goal of the ketogenic diet is to burn fat for energy rather than carbohydrates, resulting in weight loss. And, advocates claim there are many benefits beyond the number on the scale going down.
Here are a few of the most common side effects that I come across when people first start keto. Frequently the issues relate to dehydration or lack of micronutrients (vitamins) in the body. Make sure that you’re drinking enough water (close to a gallon a day) and eating foods with good sources of micronutrients. To read more on micronutrients, click here >
In fact, patients with gastroesophageal reflux disease (GERD) have been shown to improve after eating very low carbohydrate diets.31, 32 Another study found increased carb-intake worsened GERD, while a high-fat, low-carbohydrate diet reduced symptoms.33 And two studies have linked esophageal diseases, including Barrett’s esophagus (BE)34 and GERD,35 to sugar and carbohydrate intake.
That doesn’t mean keto causes diabetes; it’s amazing for most diabetics. However, if your cells are great at processing fat, but suck at processing glucose or carbohydrates, you won’t be able to run at full power, and parts of your body that prefer glucose over fat — like the glial cells in your brain that handle immune function and synaptic pruning — don’t work as well over time.

Throughout this article, we looked at the data and the principles behind how low-carb dieting affect patients with diabetes, but we never addressed what you can do about it directly. If you’d like to learn about practical strategies that may help you reverse insulin resistance and improve your blood sugar and HbA1C levels, I recommend reading these articles:
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.
Of the 1,580 survey participants, more than half reported staying on a low-carb diet for at least one year, and 34% reported more than two years. Further, those on the diet for two years or more said that they had largely maintained their weight loss. This is a self-selected sample, with an obvious bias for people who are experiencing success (dieters are less inclined to report on their failures). However, this data does show that long-term adherence is possible.
A low carb diet plan is a way of eating that is high in fat, moderate in protein and low in carbohydrates. There are different variations of low carb, and the keto diet is a special type of low carb with added characteristics. The number of carbohydrates will vary depending on your insulin tolerance and activity level, but on average, these are the common numbers of carbs:
The results showed a 49%-62% decrease in diabetes risk in individuals who adhered to the diet on a medium to high basis, meaning they stuck to it as closely as possible. What’s even more interesting is that the research noted that the participants who benefited the most from the reduction were men with a waist circumference of 94 or more, and women with a waist circumference of 80 or more.
You have about 160,000 Kcals of fat available to burn – producing your own glucose in the process when needed (for anaerobic bursts). In contrast you only store around 400 to 500 Kcals of glucose/glycogen ready for use so if you are not adapted to burning fat then you are physically dependent and addicted to eating carbs. When you hear of a runner “hitting the wall” it’s only because of their unnatural carb addiction – an efficient fat burning athlete can run all day and will never have this problem. The human body is specifically designed to run long distance and can outrun almost every other animal on this planet – we can even run though intense heat because we sweat.
The benefits above are the most common ones. But there are others that are potentially even more surprising and – at least for some people – life changing. Did you know that a keto diet can help treat high blood pressure, may result in less acne, may help control migraine, might help with certain mental health issues and could have a few other potential benefits?
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