The primary outcome, hemoglobin A1c, decreased from 7.5 ± 1.4% at baseline to 6.3 ± 1.0% at week 16 (p < 0.001), a 1.2% absolute decrease and a 16% relative decrease (Table ​(Table4).4). All but two participants (n = 19 or 90%) had a decrease in hemoglobin A1c (Figure ​(Figure1).1). The absolute decrease in hemoglobin A1c was at least 1.0% in 11 (52%) participants. The relative decrease in hemoglobin A1c from baseline was greater than 10% in 14 (67%) participants, and greater than 20% in 6 (29%) participants. In regression analyses, the change in hemoglobin A1c was not predicted by the change in body weight, waist circumference, or percent body fat at 16 weeks (all p > 0.05).
People use a ketogenic diet most often to lose weight, but it can help manage certain medical conditions, like epilepsy, too. It also may help people with heart disease, certain brain diseases, and even acne, but there needs to be more research in those areas. Talk with your doctor first to find out if it’s safe for you to try a ketogenic diet, especially if you have type 1 diabetes.
“As an interventional pain physician, in addition to cutting-edge techniques I use nutritional strategies to deliver people from a cycle of pain and disability. Chronic pain may result from inflammation and metabolic disarray; it intersects every part of life and is an illness as much as it is a symptom. Obesity and aging are inflammatory processes at the root of many pain-inducing chronic diseases. I suggest anti-inflammatory, low-carb, ketogenic diets and fasting protocols to optimize patients’ health. Diet Doctor is a great resource for patients compliant with this lifestyle.”
“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 OK 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.” Before you make your keto diet menu, check out the 13 things doctors want you to know about the keto diet.
In a 2004 study, overweight and obese adults consumed a low-fat diet and a low-carb diet for one week each. Both diets were designed to reduce each person’s calorie intake by 500 calories per day. However, people lost more weight and body fat after the low-carb week than the low-fat week – even though the men averaged higher calorie intake during the low-carb phase.
Aude, Y., A. S, Agatston, F. Lopez-Jimenez, et al. “The National Cholesterol Education Program Diet vs a Diet Lower in Carbohydrates and Higher in Protein and Monounsaturated Fat: A Randomized Trial.” JAMA Internal Medicine 164, no. 19 (2004): 2141–46. doi: 10.1001/archinte.164.19.2141.

There are numerous benefits that come with being on keto: from weight loss and increased energy levels to therapeutic medical applications. Most anyone can safely benefit from eating a low-carb, high-fat diet. Below, you’ll find a short list of the benefits you can receive from a ketogenic diet. For a more comprehensive list, you can also read our in-depth article here >
“I started gaining weight in college. Too Much Beer. And it didn't stop, sitting at a desk job all day, going out to dinner ever night. I packed on the pounds. I knew something had to change. My friend recommened to me. I suddenly had energy again! I started taking the stairs at work. Biking on the weekend. I've been using it for 18 months now - and let me tell you - I'm back baby! ” - Carlos Thomas
A slice of cheese contains 115 calories, 7 g of protein, 9 g of fat (5 g of saturated fat), about ½ g of carbohydrate, and no fiber, per the USDA. The saturated fat qualifies it as a food you ought to limit, but some research suggests the food has health benefits as well. A meta-analysis published in December 2017 in the European Journal of Nutrition found that cheese eating was associated with a 10 percent lower risk of heart disease and stroke, particularly for those consuming about 1.5 oz (or a slice and a half) per day.
In some ways, it’s similar to the Atkins diet, which similarly boosts the body’s fat-burning abilities through eating only low-carb foods, along with getting rid of foods high in carbs and sugar. Removing glucose from carbohydrate foods will cause the body to burn fat for energy instead. The major differences between the classic keto and the Atkins diet is the former emphasizes healthier keto fats, less overall protein and no processed meat (such as bacon) while having more research to back up its efficacy.

“I started a low-carb, high-fat diet for myself in an attempt to treat my own health problems. Since then, I have seen significant health benefits not only in myself but also in many of my patients using a LCHF/ketogenic approach. Diet Doctor gives a simple but very effective evidence-based resource that I confidently recommend to all my patients. And the recipes are great!”
Melinda – I’m afraid there’s no getting around the fact that one of the Keto requirements is to *calculate your macros,* based on the amount of calories you need to consume each day, in order to (a) maintain your current weight level, or (b) lose weight. Go to an online Keto macro calculator – there’s one linked to a good one on this site, further up the thread. They are generally very easy to use. Then stick to your calculated results, with trust and patience. It may be slow, but you will absolutely see results. I did – and I’ve tried absolutely everything. I barely have time to exercise, but I still lost at least a couple of dress sizes, and I feel absolutely amazing – no more brain fog, tons of energy – maybe too much energy! And best of all, I’m no longer miserable about food, because on Keto, everything is delicious! One final thing in the interest of full disclosure – I am an uber-clean-Keto advocate. I put in the work to eat only healthy fats and carbs from healthy sources. I’m pescatarian – no meats except seafood. I also carefully limit my saturated fat intake to 10% of total calories (the recommended daily allowance), to keep my genetically problematic cholesterol level from skyrocketing, as it did when I first began. This is all working well for me so far – I was able to cut 40 points from my abnormally high LDL (bad cholesterol) level within three months, And hope to get it down to normal levels in three more months. You do want to make sure you get your regular physical exams and monitor your blood work whenever you change your nutritional lifestyle. I wish you the best!
7. Raygan, F., Bahmani, F., Kouchaki, E., Aghadavod, E., Sharifi, S., Akbari, E., . . . Asemi, Z. (2016). Comparative effects of carbohydrate versus fat restriction on metabolic profiles, biomarkers of inflammation and oxidative stress in overweight patients with Type 2 diabetic and coronary heart disease: A randomized clinical trial. PMID: 28607566
The following measurements were made every other week: anthropometric and vital sign measurements; urine testing for ketones; and assessment for hypoglycemic episodes and other symptomatic side effects. Weight was measured on a standardized digital scale while the participant was wearing light clothes and shoes were removed. Skinfold thickness was measured at 4 sites – the average of 2 measurements at each site was entered into an equation to calculate percent body fat [12]. Waist circumference was measured at the midpoint between the inferior rib and the iliac crest using an inelastic tape; 2 measurements were averaged in the analysis. Blood pressure and heart rate were measured after the participant had been seated quietly without talking for 3 minutes. Certified laboratory technicians assessed urine ketones from a fresh specimen using the following semi-quantitative scale: none, trace (up to 0.9 mmol/L [5 mg/dL]), small (0.9–6.9 mmol/L [5–40 mg/dL]), moderate (6.9–13.8 mmol/L [40–80 mg/dL]), large80 (13.8–27.5 mmol/L [80–160 mg/dL]), large160 (>27.5 mmol/L [160 mg/dL]). Hypoglycemic episodes and symptomatic side effects were assessed by direct questioning of the participant and by self-administered questionnaires.
During the 1920s and 1930s, when the only anticonvulsant drugs were the sedative bromides (discovered 1857) and phenobarbital (1912), the ketogenic diet was widely used and studied. This changed in 1938 when H. Houston Merritt, Jr. and Tracy Putnam discovered phenytoin (Dilantin), and the focus of research shifted to discovering new drugs. With the introduction of sodium valproate in the 1970s, drugs were available to neurologists that were effective across a broad range of epileptic syndromes and seizure types. The use of the ketogenic diet, by this time restricted to difficult cases such as Lennox–Gastaut syndrome, declined further.[10]

I ate a lot of bacon, cheese, eggs and meat (steak and chicken mostly). For a person whose eating philosophy is typically more plant-based and whole-food-focused, eating processed pork products every morning took a lot of personal persuasion. It also took a complete mental shift, because eating multiple pieces of bacon every day for weeks on end goes against everything I've been taught for personal health.