5 Common Mistakes to Avoid in Ketogenic Diet
The ketogenic diet focuses on eating very low amounts of carbohydrate and high amounts of fat and has gained the public’s interest for its potential role in promoting weight loss and improving metabolic health.6–8 However, with its benefits closely tied to the stringent restriction on carbohydrate intake, the ketogenic diet can easily be rendered ineffective and difficult to follow through small deviations. Here are common mistakes to avoid while following the ketogenic diet to reap its full benefits.
- Eating Hidden Carbs
To successfully follow the ketogenic diet, carbohydrate intake must be limited to 5-10% of daily caloric intake.1 This is to ensure that a process called ketosis, the underlying mechanism behind ketogenic diet, occurs by limiting the availability of glucose reserves. During ketosis, the body uses fat reserves as the primary source of energy instead of glucose (ie, carbohydrate), leading to increased fat oxidation and weight loss.2–4 However, there are many hidden sources of carbohydrates in foods to be aware of, especially when eating out.5,6 Condiments like ketchup, mayonnaise, syrup, and salad dressings are one of the biggest hidden sources of sugar. Asking for them on the side can help you avoid consuming more carbs than you intend while on the ketogenic diet.
- Eating Too Much Protein
When following the ketogenic diet, simply restricting carbohydrate intake is not enough. Similar to the concern of eating too much carbohydrate, eating too much protein can also render the ketogenic diet ineffective.1 In a ketogenic diet, protein consumption is usually limited to 30-35% of intake, or to <1 gram per pound of body weight. When consumed in large quantities especially in low-carbohydrate diets such as the ketogenic diet, protein can be converted to glucose in the body through a process called gluconeogenesis and hinder the body from entering as well as maintaining ketosis.1,7 Although certain proteins like steak, salmon, and bacon are rich sources of both protein and fat, be aware of how much protein is being consumed along with fat.
- Not Drinking Enough Water
Drinking enough water is an important part of the ketogenic diet that some may miss.8 Ketogenic diet is known to promote urination and can possibly lead to hypotension (ie, low blood pressure) and dehydration if fluid and electrolytes are not sufficiently replaced. Additionally, some studies report that the ketogenic diet may be associated with increased risk of nephrolithiasis, also known as kidney stones.9 Although the ketogenic diet is not associated with chronic dehydration, adequate fluid intake can help reduce the risks of short-term dehydration as well as developing kidney stones.10
- Quitting Too Soon
Ketogenic diet is known for its effectiveness in promoting weight loss and improving metabolic health, but adherence is a key challenge.11 It is estimated that only half of the adults are able to adhere to a low-carbohydrate diet, substantially due to what is known as the “keto flu”. “Keto flu” is a conglomerate of short-term symptoms including fatigue, headache, dizziness, nausea, gastrointestinal discomfort, and decreased energy, and is commonly experienced during the initial period of adjustment.12,13 Not being prepared to experience short-term discomforts from keto flu and not ensuring adequate fluid, electrolyte, and nutritional intake during initial adjustment periods are common mistakes to avoid while on the ketogenic diet.
- Not Discussing With Your Doctor First
Embarking on the ketogenic diet without first consulting health care professionals can be a common and a potentially dangerous mistake.8 Because of the ketogenic diet’s harsh restriction on carbohydrate intake and prescription to high fat consumption, some medical conditions may not be compatible with the ketogenic diet. Studies typically warn that individuals with certain conditions, illnesses, or taking certain medications should either avoid or exercise extreme caution when starting the ketogenic diet. These conditions include liver failure, chronic kidney disease, type 1 diabetes mellitus, pregnancy or breastfeeding, certain cardiovascular (ie, heart disease) and cerebrovascular conditions (ie, stroke), cancer, use of sodium-glucose transport protein 2 inhibitors (ie, a type of diabetes medication), and more.
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The content of this article is intended to provide a general information and knowledge on the subject matter. The views expressed in newsletters, articles, and blogs in the i-SENS USA website are not necessarily those of i-SENS Incorporated, i-SENS USA Incorporated or our publishers. Medical or nutritional information on i-SENS USA website is not intended to replace professional medical advice – you should always consult a specialist with any questions about your specific circumstances.
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