But what does the science say? Results are mixed. In one Spanish study of 20 obese adults, participants were put on a low-calorie keto diet and lost an average of 40 pounds over four months. Another small experiment had a similar outcome. In a six-month Experimental & Clinical Cardiology study of 83 obese adults, those on the keto diet lost an average of 33 pounds, while lowering their bad (LDL) cholesterol levels and increasing their good (HDL) cholesterol.
In my book "Fat for Fuel," I sought to educate readers about the benefits of using healthy fats as a catalyst to bring about improved mitochondrial function, thus allowing you to achieve better health. In essence, the book answers WHY it is important for you to consume healthy fats. However, you still need to know HOW to prepare the right ketogenic foods in an appetizing way.
Something that makes the keto diet different from other low-carb diets is that it does not “protein-load.” Protein is not as big a part of the diet as fat is. Reason being: In small amounts, the body can change protein to glucose, which means if you eat too much of it, especially while in the beginning stages of the keto diet, it will slow down your body’s transition into ketosis.
Note: Are you a vegetarian or vegan and want to go on a ketogenic diet? It’s still possible! Just keep in mind that the dietary restrictions can sometimes be a little bit intense. Make sure to plan ahead and prepare to aid your success. To help out, we’ve published articles (with 7 day meal plans included) for both the vegetarian ketogenic diet and the vegan ketogenic diet.
KetoVale‘s Tip: Exogenous ketones are NOT a magic pill or a carb blocker. You should be making better choices about your diet meal plan first and then ask yourself if you want to or how you can supplement afterward to help out. Remember it’s a supplement and not supposed to be used as an eraser to erase eating choices (by definition, supplement is a thing added to something else in order to complete or enhance it). It’s like building muscles, you can take supplements, but if you don’t workout and eat right, the muscles won’t show up. The supplements aren’t going to lift those heavy weights for you. There’s no magic bullet.
Basically, fat within your blood travels as lipoproteins, along with cholesterol, proteins, and phospholipids. In order for an artery to be “clogged”, 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 “clogging”, 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 “clogging”.
Drink lots of water. If you aren’t consuming enough water then the organs in your body can’t function properly. There is no point in eating right if your body can’t do what it is supposed to with the foods. Drinking plain water can get tiring so I like to either use MiO in my water (this kind also helps to replenish electrolytes) or I’ll turn to a detox water to change things up.
Net carbs are what we track when following a ketogenic diet. This calculation is pretty straightforward. Net Carbs = Total Carbs – Fiber. For example, one cup of broccoli has 6g of total carbs and 2.4g of fiber. That would mean one cup of broccoli has 3.6g of net carbs. We count Net Carbs because dietary fiber does not have a significant metabolic effect.
“One of the best meal planning tips I’ve ever received is to structure breakfast and lunch so that you don’t have to think too much about it,” says Emily Bartlett, co-founder of Real Plans. “If you’re okay with repetition, it’s ideal to have a simple selection of recipes for breakfast—including some that can be taken on the go. For lunch, go ahead and use your leftovers with a fresh green salad, and be sure to include a dressing that you really love.”
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.
Unfortunately, long-term fasting is not a feasible option for more than a few days, therefore the ketogenic diet was developed to mimic the same beneficial effects of fasting. Essentially the keto diet works by “tricking” the body into thinking it is fasting, through a strict elimination of glucose that is found in carbohydrate foods. Today the standard ketogenic diet goes by several different names, including the “no-carb diet” or “very low carbohydrate ketogenic diet”(LCKD or VLCKD for short).
This was a great read , Steve, thanks! I’m 19 days in but forever educating myself. Wish I’d been more prepared for the keto flu cos’ that hit me HARD! Out the other side now though and hoping to see some improvements in my cycling endurance and less reliance on the gels and goos! I’ll also be doing lots of HIIT for some racing that I’ll be doing this winter (in the UK) so looking forward to experimenting with that! As a former (and maybe still current) sugar lover, the dessert tips were especially useful. Thanks again!
Y. Wady Aude, MD; Arthur S. Agatston, MD; Francisco Lopez-Jimenez, MD, MSc; Eric H. Lieberman, MD; Marie Almon, MS, RD; Melinda Hansen, ARNP; Gerardo Rojas, MD; Gervasio A. Lamas, MD; Charles H. Hennekens, MD, DrPH, “The National Cholesterol Education Program Diet vs a Diet Lower in Carbohydrates and Higher in Protein and Monounsaturated Fat,” Arch Intern Med. 2004;164(19):2141-2146. http://archinte.jamanetwork.com/article.aspx?articleid=217514.
Now, there’s even evidence that a low-carb, high-fat diet helps you live longer, compared to a low-fat diet. In a study by the medical journal The Lancet that studied more than 135,000 adults from 18 countries, high carbohydrate intake was associated with higher risk of total mortality, whereas total fat and individual types of fat were related to lower total mortality. Total fat and types of fat were not associated with cardiovascular disease, myocardial infarction or cardiovascular disease mortality.
Most alcoholic beverages don’t list the ingredients or nutritional information on the label, so be prepared and check your favorite drinks online so you know your limits beforehand. Most apps and trackers list many types of alcohol in their database, and this is the easiest way to be sure of what you’re drinking. Be warned, when you’re in ketosis your alcohol tolerance will go down, so you might not want to drink as much as you might be used to.
Quick update – been doing a keto-type diet for a couple of months now. My BP is down to the lowest it’s been in something like 10 years, though still on 1/2 dose for my meds. I’ve lost about 30 pounds in the last 4 months (give or take a bit as I’m not sure exactly where I started). I’ll admit I still use Truvia and will have a Coke Zero every now and then, but eliminating the wheat and corn breads and sugars to reduce my carb intake to < 50g/day on average has made a huge difference. (I'm sure some still sneaks in with some of the food I eat out, but for the most part it's pretty good.)
Here’s the Knowledge Stage analogy: Say we are hungry and want to go out to eat. It wouldn’t make much sense to sprint to the nearest restaurant, right? Wouldn’t we be better served to take the few minutes to learn about what’s available, and then make a plan? Yes, we would take the time to Yelp or ask a friend for some knowledge and use that information to decide where we want to go.
Going into nutritional ketosis by following a ketogenic diet is one of the most radical but highly beneficial lifestyle changes you can make to improve your health. As with most dietary changes, always remember to listen to your body. If you feel any side effects other than the ones listed above, then necessary adjustments to your food intake may be needed.
It usually takes three to four days for your body to go into ketosis because you have to use up your body's stores of glucose, i.e., sugar first, Keatley says. Any major diet change can give you some, uh, issues, and Keatley says he often sees patients who complain of IBS-like symptoms and feeling wiped out at the beginning of the diet. (The tiredness happens because you have less access to carbs, which give you quick energy, he explains.)
Yancy WS Jr, Westman EC, McDuffie JR, Grambow SC, Jeffreys AS, Bolton J, Chalecki A, Oddone EZ, “A randomized trial of a low-carbohydrate diet vs orlistat plus a lowfat diet for weight loss,” Arch Intern Med. 2010 Jan 25;170(2):136-45. http://www.ncbi.nlm.nih.gov/pubmed/20101008?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=2.
Cyclical ketogenic diet: The Bulletproof Diet falls into this category. You eat high fat, low carb (less than 50 grams of net carbs a day) five to six days of the week. On day seven, you up your carb intake to roughly 150 grams, during what’s called a carb refeed day. Carb cycling this way helps you avoid the negative effects some people experience when they restrict carbs long term, like thyroid issues, fatigue and dry eyes.  Full ketosis isn’t for everyone, and adding carbs such as sweet potatoes, squash, and white rice one day a week keeps your body systems that need some amount of carbs functioning properly.
Hi Lauren, I just started this diet. Any tips for beginning? I am not sure I am taking in enough throughout the day. I snack on cheese and red grapes, raspberries throughout the day. I have a protein shake for breakfast and lunch. and then this evening I am having a chicken salad with avocado and romaine. Like I said I don’t think I am taking in enough throughout the day.
The book contains a two week menu for beginners. (Face it, there's a 90% chance you won't follow it to the letter, but it does help set your thinking in the right direction.) For each individual week there's a shopping list which, by itself, will help you adjust your kitchen quite a bit. There are tips on the best sweeteners (Swerve over Splenda), the oils you'll need, produce, canned and bottled items, pantry items, and meats. Something to consider as you go along is that some items, like almond and coconut flour are expensive items to stock up on, but you'll use considerably less than non-keto recipes will use for regular flour. Do what you can afford. Just know that there are some must-have staples like coconut oil and olive oil.
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.
Bulk buy and cook. If you’re someone who doesn’t like to spend a lot of time in the kitchen, this is the best of both worlds. Buying your food at bulk (specifically from wholesalers) can reduce the cost per pound tremendously. Plus, you can make ahead food (bulk cook chicken thighs for pre-made meat, or cook entire meals) that are used as leftovers, so you spend less time cooking.
In a state of ketosis, your body breaks fat down in the liver and converts it into ketones to be used for energy. Fat doesn't generate an insulin response, so insulin levels remain stable. This makes it much harder to store excess fat, and easier to tap into body fat stores for energy. Not only will this allow you to maintain your weight, but it will greatly encourage weight loss.
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).
The keto diet isn’t new, and it’s been around for nearly a century. It was originally developed to treat people with epilepsy. In the 1920s, researchers found that raised levels of ketones in the blood led to fewer epileptic seizures in patients. The keto diet is still used today to treat children with epilepsy who don’t respond well to anti-epileptic drugs.
I’m honestly a little skeptical about it the idea of keto permanently. My brief glance at the literature seems to imply that it can have side effects of kidney stones, skeletal fractures, and slow the growth rate of children, but that was a study on kids with epilepsy (which it treated very effectively), so who knows how that applies to adults. And the other studies I found dealt with overweight and obese subjects, so it may be hard to find something on the long term effects on otherwise healthy adults.
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Medical Disclaimer: The material on this site is provided for informational purposes only and is not medical advice. Always consult your physician before beginning any diet or exercise program.
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