While little research has been done specifically around the diet's long-term effects, some studies suggest there are health benefits in following such a strict low-carbohydrate diet, such as its ability to improve type 2 diabetes and shrink some forms of brain cancer. However, more research on humans is needed and, as Professor Collins warns, this diet is used in medical nutrition therapy as a short-term test diet for specific medical conditions such as epilepsy and should only be used medically under the supervision of experts.
Under normal circumstances our body uses glucose from carbohydrate foods for energy. In the absence of glucose a process called ketosis occurs. This is a state in which the body burns fats instead of carbohydrates as its main fuel source. When we don’t eat carbs, the liver breaks down fat stores to produce energy. This energy is in the form of (and also creates) molecules called ‘ketones’. 

Hi Victoria, Beginning any new diet is a lot of work! There are a lot of rules to learn and foods to acclimate to. This is also the case with keto or low carb. Start by reading labels and learning how many carbs are in the foods you eat. If your goal is to get to 25g carbs or less a day, then work on that first. It will become easier as you go, please be patient and stick with it! Here is a Keto Food List Guide to help you learn which whole foods to add to your day.
I like a number of your recipes. I am cooking for my wife who is overweight. Not going into details. Although I have her on a keto diet, I don’t believe it is totally a keto diet. I can say that I am making her some keto recipes and low carb recipes. We were successful in having her lose weight twice, but she fought continuing. This time, she is on it no matter what, after a Dr visit. My wife was always a meat and potatoes girl, meaning she fights vegetables especially. But I am being successful in other ways to see that she eats her fruits and vegetables. Some of your recipes she will not eat. Me, I eat almost anything. So she is a challenge. I want to find or make through recipes foods that are close to what she was use to eating. I am making her tortillas for example. I found an acceptable recipe.
Long-term effects can include constipation, diarrhea, lack of energy, iron deficiency, vomiting, and kidney stones. Not to mention, eating such a high-fat diet like keto can also contribute to high triglyceride levels, which increase your risk of heart disease and stroke, as well as high cholesterol. Lastly, going keto can also contribute to a weakened immune system (since carbs help boost immunity) and chronic inflammation, says Zeitlin.
When you eat less than 50 grams of carbs a day, your body eventually runs out of fuel (blood sugar) it can use quickly. This typically takes 3 to 4 days. Then you’ll start to break down protein and fat for energy, which can make you lose weight. This is called ketosis. It's important to note that the ketogenic diet is a short term diet that's focussed on weight loss rather than the pursuit of health benefits. 
LDL-Cholesterol particles exist in different sizes. On one hand we have the large, fluffy, cotton-ball like molecules, and on the other hand the small dense molecules. Many recent studies have looked into the importance of LDL-particle size. Studies show that people whose LDL-C particles are predominantly small and dense have a threefold greater risk of coronary heart disease. Furthermore, the large and fluffy type of LDL-C  may actually be protective. Studies indicate carbohydrate restriction positively affects particle size by reducing the number of very small and small LDL particles.
My husband and I are following keto. We started January 1st. We recommend being under doctors care if you have any medical issues. We both have heart disease, needed to lose weight and my husband was diabetic type 2. I suffered from kidney issues. Our journey has brought us to lose (husband) 41 pounds (me) 74 pounds. My husband is off all medications (he was taking 7) down to one, with blood work being normal. His heart doctor of course can’t wrap his mind around this diet and even though the blood work is normal he wants to still have him on 3 medicines for preventative purposes. He is no longer on any diabetes medicine and has more energy than ever before. With me the kidneys were a big issue so getting levels every three weeks was not fun, but with keto you must drink at least eight glasses of water. I drink 12 glasses of water a day. We will definitely stay on keto and watch macros. We use 5% carbs, 70% fat and 20% protein.
1/4 cup oats soaked overnight with 1/4 cup almond milk and 1/4 cup unsweetened yogurt is good, oats are easy to digest and soaking releases the phytates lowering the effect of the carbs. Add fresh strawberries, and a wee sprinkle of sugar-free sweetener if you need it, or a pinch of salt is nice too! 1/4 cup oats is not going to raise your blood sugar, but gives you the nutrients you need as a nursing Mum.
Thank you for writing this post, it’s very helpful! I started low carbing a while back (probably more than a year ago) and ended up backsliding, as can often happen when trying to drastically change your eating habits. On Friday I had my annual physical and my doctor ordered blood work for glucose and insulin because previous results indicate I’m insulin resistant. The results from Friday indicate I still am, so now I’m a little worried and going back to low carb. One phone app (and website) I’ve found to be really helpful is Fat Secret. You can choose exactly which macro nutrients you want to see and it also shows percent of fat, carbs, and protein in a pie chart that I find helps me wrap my head around what I’ve consumed. It also helps that the app and website don’t seem to promote one eating plan over another.
Under normal circumstances our body uses glucose from carbohydrate foods for energy. In the absence of glucose a process called ketosis occurs. This is a state in which the body burns fats instead of carbohydrates as its main fuel source. When we don’t eat carbs, the liver breaks down fat stores to produce energy. This energy is in the form of (and also creates) molecules called ‘ketones’. 
I’m 68 yrs. old & was diagnosed as diabetic 6 mos. ago with an A1C of 6.8. My Dr. prescribed Metformin for me, but after seeing the side effects it could cause, I decided to not take it & try Low carbing instead. In 6 weeks, I lost 16 lbs. and lowered my A1C to 6.4. That was enough to convince my Dr. that I could forego the medicine and stick with my diet. 4 mos. later, I’d lost another 14 lbs. and my A1C was down to 5.9! My cholesterol ratio is in the middle of the recommended range, and my triglycerides (I have Fibromyalgia which is said to raise triglycerides) have dropped 100 pts. I’ve lost another 5 lbs. in the last 2 weeks. My Dr. And I are both thrilled, so I highly recommend a Low Carb diet for controlling your glucose level and cholesterol.

Under normal circumstances our body uses glucose from carbohydrate foods for energy. In the absence of glucose a process called ketosis occurs. This is a state in which the body burns fats instead of carbohydrates as its main fuel source. When we don’t eat carbs, the liver breaks down fat stores to produce energy. This energy is in the form of (and also creates) molecules called ‘ketones’. 

Doug. These numbers are not uncommon on a ketogenic diet. Some people respond with a very high LDL-cholesterol and high total cholesterol. However, we don’t know what this means in terms of risk. Although LDL-cholesterol is generally associated with increased risk of cardiovascular disease, we don’t know what it means in this particular metabolic situation. Your LDL particle number is most probably too high as well, although we really can’t tell much about particle size in your situation. However, a TG/HDL-C ratio less than 2 is to your benefit. If you want to lower your LDL-cholesterol you will probably have… Read more »
The keto diet has a pretty strict structure, where the person is to consume 70 percent of their daily calories from fat, 20 percent from protein, and 10 percent from carbohydrates. Ten percent of anything, especially carbs, is really not a lot. And some people even take it further, to a 70-percent fat, 25-percent protein, 5-percent carbs breakdown.
Blood sugars are often high in the morning (dawn phenomena). If you are only on 15-22 carbs per day I would check every label of everything you are eating to ensure carbs are not sneaking in somehow to still give you a reading of 200, or is your protein too high? Do you have insulin resistance? These are all factors which may be at play here. Healthy fats won’t raise BS at all.
I so want those results for the exact same reasons . I am not sure how to ensure I am in the right macros … frying using coconut oil (which I really don’t like preparing food in that way), don’t mind drizzling oil on food but so don’t get these macros. I don’t expend a lot of energy throughout the day so eat only twice a day (basically after bulletproof coffee not hungry til around 2/3:00 pm) and an early evening final meal. So basically I guess I’m doing I.F. but not losing like I think I should considering I’m 5’4″ at 305 lbs in the extremely obese IBM category. I am having real difficulty cause I don’t know what I’m doing wrong even though I’m trying to eat as healthy as possible. Any suggestions greatly appreciated.
Diabetics, especially, type 1 diabetics are at risk of complications if they attempt to follow a ketogenic diet. For this reason diabetics and anyone with a blood sugar management issue should discuss the potential implications with their GP and healthcare team before embarking on such a regime. Similarly anyone with kidney disease or a family history of such should consult their GP. 
The benefits of LCHF diets in sports are mainly seen in long-distance running and other endurance events. The body’s fat stores are huge and dwarf the minuscule glycogen stores. This means that once an athlete has transitioned to burning fat instead of carbohydrates, he or she will be able to perform for long periods of time without needing much (if any) additional food for energy.
Hi Mellisa, I still recommend eating a variety of vegetables on a keto diet! You can include low carb berries as well. That being said, a multivitamin usually can’t hurt anything, so you definitely can if you feel like you are missing something. As always, I’m not a doctor and recommend consulting with your doctor for ultimate recommendations on these types of questions.
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