There is scientific evidence that supports the use of a ketogenic diet to help manage certain neurologic conditions. There are also medical, nutrition, and fitness professionals that recommend the eating program for patients and clients who have other health goals. But just because the program works for some, doesn't mean that it's the best diet for you.
Long-term use of the ketogenic diet in children increases the risk of slowed or stunted growth, bone fractures and kidney stones. The diet reduces levels of insulin-like growth factor 1, which is important for childhood growth. Like many anticonvulsant drugs, the ketogenic diet has an adverse effect on bone health. Many factors may be involved such as acidosis and suppressed growth hormone. About 1 in 20 children on the ketogenic diet will develop kidney stones (compared with one in several thousand for the general population). A class of anticonvulsants known as carbonic anhydrase inhibitors (topiramate, zonisamide) are known to increase the risk of kidney stones, but the combination of these anticonvulsants and the ketogenic diet does not appear to elevate the risk above that of the diet alone. The stones are treatable and do not justify discontinuation of the diet. Johns Hopkins Hospital now gives oral potassium citrate supplements to all ketogenic diet patients, resulting in a sevenfold decrease in the incidence of kidney stones. However, this empiric usage has not been tested in a prospective controlled trial. Kidney stone formation (nephrolithiasis) is associated with the diet for four reasons:
Low Carb Bars — There are a plethora of “keto-friendly” on-the-go bars that have hit the store online and on the shelves. Before you fall for their marketing scheme, check the ingredients and calculate the net carbs per bar. Make sure the bar will fit within your calorie and net carb limits for the day. The two most common bars that can be eaten on keto, albeit sparingly, are Quest Bars and NuGo Smarte Carb Bars. Use these as a last resort if you have no other keto snacks available.
Switching to a ketogenic diet plan can be uncomfortable at first because your body metabolism is refitting itself to burn fat instead of relying on glucose. However, you can avoid most of the symptoms. Here's a list of all of the common side effects that will happen the first week or so of starting a ketogenic diet. Knowing about them allows you to take steps to minimize them, and save yourself some carb withdrawal misery. Dr. Mike Eades has a great analogy for this process in this blog post. I highly recommend you read it.
Lunch: pat dry chicken and cut into cubes. Lightly (!) salt and pepper. Heat a skillet over medium heat, once hot add coconut oil and fry chicken cubes until brown from all sides. Remove chicken, and add crushed garlic, curry paste and fish sauce to pan. Stir until fragrant and remaining oil in pan and curry paste are well combined. Then add coconut milk and whisk until well combined. Simmer and reduce sauce until desired consistency (1-3 minutes). Pour sauce over chicken and sprinkle with sesame seeds. Serve with baby spinach.
So why is social media blowing up with all things #keto, all the time? Well, most of us eat too many carbs to begin with. About half of our calories should come from carbs, according to the USDA Dietary Guidelines for Americans. That's about 250 grams per day for a 2,000 calorie diet. When you consider all of the grain-based foods and sneaky sources of added sugar, it's easy eat a lot more than the recommended amount.
Your glycogen stores can still be refilled while on a ketogenic diet. A keto diet is an excellent way to build muscle, but protein intake is crucial here. It’s suggested that if you are looking to gain mass, you should be taking in about 1.0 – 1.2g protein per lean pound of body mass. Putting muscle on may be slower on a ketogenic diet, but that’s because your total body fat is not increasing as much.5Note that in the beginning of a ketogenic diet, both endurance athletes and obese individuals see a physical performance for the first week of transition.