The classic ketogenic diet is a very low-carb diet plan that was originally designed in the 1920s for patients with epilepsy by researchers working at Johns Hopkins Medical Center. (1) Researchers found that fasting ” avoiding consumption of all foods for a brief period of time (such as with intermittent fasting), including those that provide carbohydrates ” helped reduce the amount of seizures patients suffered, in addition to having other positive effects on body fat, blood sugar, cholesterol and hunger levels. (2)

I have read your article and lots of other stuff on Keto, but I still don't understand why it has to be so high in fat? I am on a calorie controlled diet which should also be pushing me into ketosis (Optifast + veges) nutritionist suggestion to go hard for a month. But after that was looking at moving to a Ketogenic diet. I am just having a hard time with understanding why it has to be high fat. Can you help me understand? Also love your writing style (particularly referencing Ace Ventura).
If you're new to keto, watch out for hidden carbs. Generally, dairy products and nuts are a good way to meet your daily fat intake, but know that some of those items may contain more carbohydrates than you think. For example, yogurt topped with nuts may seem like a great keto-friendly snack, but a 5.3 ounce serving of plain yogurt has 12 grams of carbohydrates. Vanilla flavored yogurt has 24 grams of carbohydrates. Add an ounce of cashews, weighing in at nearly nine grams of carbs, and you're up to 21 to 33 grams of carbs for that snack, which could knock you out of ketosis. Be sure to read nutrition labels carefully and pay careful attention to serving sizes. Track foods using a keto-specific app like Senza or KetoDiet can help you stay within your recommended daily carb intake.
Just started the 100 pushup challenge with another group and that's likely going to help a bit as well. I'd been avoiding most of the exercise due to some feet issues, but the small success w/ the pushups has encouraged me to consider re-upping my weight training at the local rec center and get that going. As long as I don't hit the feet too hard, that can work. ðŸ'‚
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If you do try the diet outside of medical supervision, Kizer says it's important to test your urine with urinalysis ketone test strips to ensure your ketone levels don't become dangerously high. Ketone urine test strips are also used by people with diabetes to determine if they're at risk for ketoacidosis (DKA), a life-threatening complication that occurs when an individual doesn't have enough insulin in their body. (Healthy ketosis is considered 0.5 to 3.0 mM blood ketones.)
In the first week, many people report headaches, mental fogginess, dizziness, and aggravation. Most of the time, this is the result of your electrolytes being flushed out, as ketosis has a diuretic effect. Make sure you drink plenty of water and keep your sodium intake up.6One of the fathers of keto, Dr. Phinney, shows that electrolyte levels (especially sodium) can become unbalanced with low carb intake.
Alcohol also tends to interrupt ketosis, since your liver will burn it preferentially before anything else. Your body treats alcohol like a toxin and like a fuel source, so your body will use it before it uses foods or the calories stored in your fat cells. While it won't necessarily œknock you out of ketosis, it does pause it until the alcohol is cleared from your system.
Basically, fat within your blood travels as lipoproteins, along with cholesterol, proteins, and phospholipids. In order for an artery to be œclogged, there needs to be a small tear in its inner wall first. These tears can be due to stress, smoking, a highly-processed diet, etc. In order for the walls to be repaired and thus prevent œclogging, Vitamin E must be used. Vitamin E, being a fat-soluble vitamin, requires fat in order to be available for your body to use. Therefore, the consumption of fat can help your arteries self-heal and thus prevent œclogging.
Thanks for the very informative article. This was the push I needed to at least try it. Starting next weekend, my partner and I will be trying keto for 30 days. I'm all for small changes, in theory, but what I sometimes discover is that sweeping changes can have their place, too, if they produce positive results. Often, what will work for me is trying a big change, and even if I then throw out 80% of it, at least the remaining 20% sticks. By contrast, any backsliding from a small change can often mean just throwing it out entirely.

At the core of the classic ketogenic diet is severely restricting intake of all or most foods with sugar and starch (carbohydrates). These foods are broken down into sugar (insulin and glucose) in our blood once we eat them, and if these levels become too high, extra calories are much more easily stored as body fat and results in unwanted weight gain. However, when glucose levels are cut off due to low-carb dieting, the body starts to burn fat instead and produces ketones that can be measured in the blood (using urine strips, for example).


Each of the above methods is good for its own reason; however, we would suggest only one: the blood test. The urine strips are cheap, yet not accurate. The breath analyzer is expensive, difficult to find and has definite quirks. The blood tests, while somewhat expensive, are fully reliable and testing your blood - the most accurate place to measure your ketones.
Once ketone levels in the blood rise to a certain point, you officially enter into a state of ketosis. This state results in fairly rapid and consistent weight loss until you reach a healthier (and stable) body weight. Overall, people enter into ketosis at different rates, usually after 3“4 days of fasting or following a very low-carbohydrate diet (20 grams of net carbs or less) that forces the need for an alternative energy source. (3)

¢ Potassium: With the approved list of foods being so brief, you might not be getting in enough fruits and veggies on keto. One of the biggest impacts? A potassium deficiency”and all of the lovely constipation and muscle cramps that accompanies it. Aim to up your intake of foods like spinach, avocado, tomatoes, kale and mushrooms to get your potassium fix.

When you cut back on carbs or just haven't eaten in a while, your body looks for other sources of energy to fill the void. Fat is typically that source. When your blood sugar drops because you're not feeding your body carbs, fat is released from your cells and flood the liver. The liver turns the fat into ketone bodies, which your body uses as its second choice for energy.

A œmoderate keto diet is an option that can still encourage substantial weight loss and other improvements in symptoms. A moderate keto diet includes more foods with carbs and, therefore, more fiber too. Carbs are usually increased to about 30“50 net grams per day, which means foods like more high-fiber veggies, some fruit or some starchy veggies can also be included.


The ketogenic diet may seem like the Jekyll to the Hyde-like low-fat craze of the 1990s. The bulk of current research finds that the middle ground between the two extremes is more beneficial for overall health. Make it easy for yourself: Eat at least two servings a week of fatty fish (salmon, sardines, mackerel) and cook with a variety of quality fats (olive oil, canola oil, avocado oil) throughout the week.

If you'd like to try intermittent fasting, it's best to start by gradually decreasing your feeding window. Start with not eating for a 12 hour stretch, including the time that you're sleeping. For example, you could stop eating at 8 in the evening, then have breakfast at 8 in the morning. Ultimately, you'll want to be mostly done with digestion by the time you go to bed, and not be hungry until late morning, so for most people a feeding window of 10am to 6pm would be a good goal.
Hi Sia, welcome to the wonderful world of keto! I would start simple “ eat whole foods like avocado, protein, and dark veggies. Download MyFitnessPal or CarbCounter apps to track your macros for you. What works best for me is planning out my meals ahead of time. Ill meal prep my food then log it into MyFitnessPal app so I know I am on target then the next day, eat only what I've logged. Its the perfect way to make sure you have enough food that already prepared and the best way to stick to macros. Hope that helps!
Wondering how many carb foods you can eat and still be œin ketosis? The traditional ketogenic diet created for those with epilepsy consisted of getting about 75 percent of calories from sources of fat (such as oils or fattier cuts of meat), 5 percent from carbohydrates and 20 percent from protein. For most people a less strict ketogenic diet (what I call a œmodified keto diet) can still help promote weight loss in a safe, and often very fast, way.
Yes, you can drink alcohol on keto, but there are a couple of catches. The first thing to watch out for is, obviously, the carbohydrates in your drink of choice. If you're choosing clear liquor, it tends to have a low amount of carbs, but it still has some. Your mixers also may have carbs in them, so choosing something like tonic water over a soda will keep you within your limits. Beer, cider, wine, and other bottled alcoholic drinks tend to be high in sugars, so you might just want to avoid them.

Instead of thinking about the total carbs you're eating, assess what those carbs provide to you. Do the majority of your carbs come from fruit and vegetables, with a payload of fiber and disease-fighting antioxidants? Fantastic. Or are you consuming them in the form of added sugars (cookies, candy, soda) or refined flour? If you are, you know what to do.
There are reasons a strange diet like this has stuck around since the 1920's. A diet like keto that is low in sugar lowers blood glucose and insulin levels has several positive effects on the body, especially in overweight or obese people. The ketogenic diet gives your body the chance to re-adjust its glucose and insulin levels. In addition, there are health benefits that will enhance daily life, as well as help treat disease. Check out these benefits of the ketogenic diet:

If you need to eat more or fewer calories per day, you can adjust accordingly by simply taking out or adding a bit more of the ingredients already included in a recipe. For example, adding/removing a tablespoon of olive oil or butter will add/remove about 100 calories. If you like or dislike certain recipes, feel free to shift things around. Make sure to keep an eye on the calories so you're still falling within an acceptable range of your daily goal.

Reduced hunger. Many people experience a marked reduction in hunger on a keto diet. This may be caused by an increased ability of the body to be fueled by its fat stores. Many people feel great when they eat just once or twice a day, automatically ending up doing a form of intermittent fasting. This saves both time and money, while also speeding up weight loss.
I like it “ and I'm surprised I like it. I'm only down 5 lbs. after a month but I'm down 3 inches on my waist and 2 inches on my hips. I do feel better physically and I love not being hungry! I used to be that person who could eat pasta like a lumberjack “ now I often don't even finish my food. I have had a hard time sticking to 20 net carbs, I usually end up in the high 20's somewhere, but I'm in ketosis according to the testing strips. It's much harder to stick to 20 net as a vegetarian. Everything you eat has some level of carbs and they do add up. But overall, this is the only thing I've lost any weight or inches on in about 7 or 8 years. Starvation used to work until I hit 45 and then, forget it, I could eat 700 calories a day and not lose a pound. I'm so excited *something* is actually working.

Lots of apps and website offer keto diet challenges”basically, a blueprint for the keto diet with a fixed starting and ending point (they typically last for a week to a month, though some may be longer). Speaking of apps, plenty of keto-centric ones are right at your fingertips (a.k.a., your smartphone), like the KetoDiet app, which can help you calculate your macros and track your keto diet effectively.


Achieving ketosis is a pretty straightforward, but it can seem complicated and confusing with all of the information out there.4If you want to learn more about ketosis and the scientific process around it, you can visit a very in-depth discussion about on Dr. Peter Attia's website. Here's the bottom line on what you need to do, ordered in levels of importance:

And good news for coffee addicts: you can still have your morning cup of joe. You'll just need to adjust what you stir into it. Switch out flavored creamer for the real deal”full-fat heavy whipping cream, which has only 1 gram of carbs per tablespoon. If you want to give your java a jolt of sweet, stir in a low-carb sweetener that uses sugar alcohols. But if you can skip the sweet, even better. In time, you'll retrain your palate to not crave a sugary start to the day.
Make things yourself. While it's extremely convenient to buy most things pre-made or pre-cooked, it always adds to the price per pound on items. Try prepping veggies ahead of time instead of buying pre-cut ones. Try making your stew meat from a chuck roast. Or, simply try to make your mayo and salad dressings at home. The simplest of things can work to cut down on your overall grocery shopping.

Nursing Moms should lower carb intake slowly. Try 50 carbs a day and see if he/she still seems satisfied at nap/night time.. After a week of this, and if you're not in ketosis, then go to 45, then if you're not in ketosis and milk supply isn't affected go down again. We shouldn't go below 30 carbs a day though. However, the milk fat in our milk will increase and that should help little one! My son has done fine with me at 30 carbs a day, but I've always had an oversupply of milk, so it never bother my supply. Don't try and pump to see if your supply changes because that's inaccurate. Trust me your little one will let you know.


¢ High-protein ketogenic diet ” This method is a variant of the SKD. In a high-protein diet, you increase the ratio of protein consumption to 10 percent and reduce your healthy fat consumption by 10 percent. In a study involving obese men that tried this method, researchers noted that it helped reduce their hunger and lowered their food intake significantly, resulting in weight loss.11
Happy Transformation Tuesday 🤗🎉 I can honestly say a year ago, I never would've imagined surpassing my goal of a 50 lbs weight loss, but here I am 75 lbs lighter and feeling better than ever! The girl on the left was ashamed of her body and would cover it up to make sure no one would see it. The NEW girl on the right is confident, empowered, and STRONG! I feel so lucky to have a great support system around me and thank all of you who have reached out for advice or sent kind words 😊 Keep Calm and Keto On Friends! . . .

So people saying that “ despite the lack of scientific support “ likely have a financial reason to say it. Some of these products are sold under something like a multi-level marketing arrangement, so sales people are entirely paid based on commission. For example, the company Prüvit sells drinkable ketones, called KETO//OS with a multi-level marketing structure.

The keto diet works for such a high percentage of people because it targets several key, underlying causes of weight gain ” including hormonal imbalances, especially insulin resistance coupled with high blood sugar levels, and the cycle of restricting and œbinging on empty calories due to hunger that so many dieters struggle with. Yet that's not a problem with what's on the keto diet food list.
Gary D. Foster, Ph.D., Holly R. Wyatt, M.D., James O. Hill, Ph.D., Brian G. McGuckin, Ed.M., Carrie Brill, B.S., B. Selma Mohammed, M.D., Ph.D., Philippe O. Szapary, M.D., Daniel J. Rader, M.D., Joel S. Edman, D.Sc., and Samuel Klein, M.D., œA Randomized Trial of a Low-Carbohydrate Diet for Obesity ” NEJM, N Engl J Med 2003; 348:2082- 2090. http://www.nejm.org/doi/full/10.1056/NEJMoa022207.
I believe (as well as the numerous experts I have interviewed) that over 90 percent of cancer cases are either preventable or treatable. The key here is to view cancer as a metabolic dysfunction, allowing you to gain control over this dreadful disease. Simply put, the right foods and strategies may help suppress cancer growth while simultaneously pushing it into remission.
There are several medical studies ” such as two conducted by the Department of Radiation Oncology at the Holden Comprehensive Cancer Center for the University of Iowa, and the National Institutes of Health's National Institute of Neurological Disorders and Stroke, for example ” that show the ketogenic diet is an effective treatment for cancer and other serious health problems. (12)

It's not for me, but it interesting to learn these things, and of course there seem to be good reasons for doing it for some people. I'm happy with the œeat less, exercise more diet for now, but I might try out intermittent fasting since I've seen a few things suggesting it might help with allergies? I doubt that's well supported, but I've liked what you've had to say about it, so since it's not a thing I have to spend money on to try out, might as well, right?

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