Some athletes swear by the ketogenic diet, not just for weight loss but for improved performance in their sport, as well. But Edward Weiss, PhD, associate professor of nutrition and dietetics at Saint Louis University, doesn’t buy it. “I hear cyclists say all the time that they’re faster and better now that they’re on keto, and my first question is, 'Well, how much weight did you lose?'” he says.
Though the hunger-reduction phenomenon reported during ketogenic diets is well-known, the underlying molecular and cellular mechanisms remain uncertain. Ketosis has been demonstrated to exert an anorexigenic effect via cholecystokinin (CCK) release while reducing orexigenic signals e.g., via ghrelin. However, ketone bodies (KB) seem to be able to increase food intake through AMP-activated protein kinase (AMPK) phosphorylation, gamma-aminobutyric acid (GABA) and the release and production of adiponectin. The aim of this review is to provide a summary of our current knowledge of the effects of ketogenic diet (KD) on food control in an effort to unify the apparently contradictory data into a coherent picture.
Normal dietary fat contains mostly long-chain triglycerides (LCT). Medium-chain triglycerides are more ketogenic than LCTs because they generate more ketones per unit of energy when metabolised. Their use allows for a diet with a lower proportion of fat and a greater proportion of protein and carbohydrate, leading to more food choices and larger portion sizes. The original MCT diet developed by Peter Huttenlocher in the 1970s derived 60% of its calories from MCT oil. Consuming that quantity of MCT oil caused abdominal cramps, diarrhoea and vomiting in some children. A figure of 45% is regarded as a balance between achieving good ketosis and minimising gastrointestinal complaints. The classical and modified MCT ketogenic diets are equally effective and differences in tolerability are not statistically significant. The MCT diet is less popular in the United States; MCT oil is more expensive than other dietary fats and is not covered by insurance companies.
"I'm not obsessed with food anymore. Before keto, I was constantly hungry and thinking about food. If we got takeout, I would open all of the containers to see which one had the most in it and I would grab that one. It makes sense now because everything I was eating was full of sugar and carbs and I was in that vicious cycle. Growing up, if we had a bad day my dad would say, "Let’s go get some ice cream." He wasn’t trying to raise a food addict.
Ketone salts did not improve performance 35 ,36. There are two recent published studies of ketone salts on athletes.. Performance was compared between ketone salts vs. carbohydrate in a 4 minute cycling time trial and a 150 kJ ( ~10 mins) cycling time trial. In the 4 minute trial there was no change in performance, and in the 150 kJ test, performance was decreased by 7%. Reasons for the difference in findings could be: Lower levels of blood BHB levels (which peaked at 0.6 mM and 0.8 mM in these studies) meaning far less BHB was present than in the ketone ester study. The ketone salt was given without carbohydrate and so there was no additive effect of ketones + carbohydrate as seen in the ketone ester study. The tests used were short and highly reliant on anaerobic (glycolytic) metabolism, therefore ketones did not offer an advantage.
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! . . . #keto #ketoweightloss #ketotransformation #ketogenicdiet #ketodiet #ketogenic #ketosis #ketolife #weightlosstransformation #weightlossjourney #weightloss #fitness #fitnessjourney #stronger #lowcarb #lowcarbdiet #lowcarblifestyle #lchf #transformationtuesday #weightlosstransformation #transformation #losingweight #fitnessmotivation #fitchick #weightlossbeforeandafter #beforeandafter #beforeandafterweightloss #samebutdifferent #motivation #curves
It’s also important to note there have been no long-term studies on the ketogenic diet, nor has there been research that details what may happen to the body if it’s in a constant state of ketosis itself. But given how the body needs carbs to function properly, diets that are based on fat burning may lead to nutritional deficiencies, and supplements and multivitamins are recommended because you’re cutting out entire food groups, warns Alyssa Rothschild, RDN, who is in private practice in New York City.
Meanwhile, the KD induces a ketosis that is not a pathological but physiological condition occurring on a daily basis. Hans Krebs was the first to use the term “physiological ketosis” despite the common view of it as oxymoron (Krebs, 1966); this physiological condition, i.e., ketosis, can be reached through fasting or through a drastically reduced carbohydrate diet (below 20 g per day). In these conditions, glucose reserves become insufficient both for normal fat oxidation via the supply of oxaloacetate in the Krebs cycle and for the supply of glucose to the central nervous system (CNS) (Felig et al., 1969; Owen et al., 1969) (Figure (Figure1).1). It is well-known that the CNS cannot use FAs as an energy source because free FAs cannot cross the blood-brain barrier (BBB). This is why the brain normally uses only glucose. After 3–4 days without carbohydrate intake (KD or fasting) the CNS must find alternative energy sources as demonstrated by Cahill et al. (Owen et al., 1967, 1969; Felig et al., 1969; Cahill, 2006). These alternative energy sources are the ketones bodies (KBs): acetoacetate (AcAc), β-hydroxybutyric acid (BHB) and acetone and the process of their formation occurring principally in the mitochondrial matrix in the liver is called ketogenesis (Fukao et al., 2004). Usually the concentration of KB is very low (<0.3 mmol/L) compared to glucose (≅ 4 mmol) (Veech, 2004; Paoli et al., 2010). Since glucose and KB have a similar KM for glucose transport to the brain the KB begin to be utilized as an energy source by the CNS when they reach a concentration of about 4 mmol/L (Veech, 2004), which is close to the KM for the monocarboxylate transporter (Leino et al., 2001).
Someone trying to follow the keto diet to a letter may not even go into the much-desired state of ketosis. Sure, you can buy those little piss strips that react to ketones in your urine to reassure you that you’re “in ketosis,” but you’re probably wasting your money. Ketones are present in low levels in your urine even if you’re not on a ketogenic diet. Measuring ketones via blood is far more accurate (if not overly invasive for a diet), but to measure them for weight loss in the first place is borderline useless, especially in urine.
Measuring blood ketones is the most reliable method. There is a home blood test you can use, but the strips can be very expensive. An alternative is to measure ketones in the urine with a dipstick test, which is much more accessible and inexpensive. However, this method is much less reliable and as time goes on and the body adapts to ketosis, it becomes even less reliable.
Ben – curious about your thoughts on this. I went into ketosis (using LOTS of coconut oil) but it raised my cholesterol and doc was worried about my lp(a) level (17mg/dL on VAP) even though crp was 0.5, trigs 51 and a1c was 5.2. Advised a low fat diet. Have you seen this before with folks on a lchf/ketosis diet and is there anything to be concerned about? Off to read your coconut oil article. Thank you!
"Mushrooms are mostly made of protein, fiber, and water, making them very filling," said Alex Ruani, nutrition science educator at The Health Sciences Academy. Low-starch foods like mushrooms are unlikely to kick you out of ketosis, she suggested, making them an ideal staple during low-carb eating. To add mushrooms to your diet, she recommended stirring them with scrambled eggs. Doing so makes a delicious and very filling low-carb meal, she explained.
Even though intracellular metabolism and activation of the ATP-sensitive K+ channels appear to be necessary for some signaling effects of FAs, a great amount of the FA responses in the ventromedial hypothalamic neurons are mediated by interactions with fatty acid translocase (FAT)/CD36. Translocase is a FA transporter/receptor that activates downstream signaling even in the absence of intracellular metabolism (Moulle et al., 2014).
Next month I celebrate one year since I started Keto. I don't even know who the person is in the yellow top. Feels like a lifetime ago. Love this journey I've been on and even though I'm not 100% Keto all the time, love the Keto way! #keto #ketoweightloss #ketosuccess #ketosis #ketofam #ketodiet #ketogenicdiet #ketogeniclife #ketogenicliving #weightloss #weightlossjourney #weightlosstransformation #weightlossinspo #ketogenicweightloss #lowcarb #lowcarbweightloss
I think there is a different approach to weight loss that works for every person! So you have to find what works for you. I did this as a diet for 8 months and lost 56lbs about 5 years ago before it became as popular as it is now. I started it as 10 day detox then moved to paleo but my weight loss stalled. I knew that low carb had worked for me before but I wanted more whole foods. So in searching for low carb Paleo, I stumbled on Keto. I completely healed my pre-diabetes and sugar issues. Even after resuming “normal” eating. As I have seen this diet rise in popularity, I have seen so many different “styles” of it that don’t really make sense with what I knew it to be. I also think there are so many people who just jump on the bandwagon and want the quick facts, the meal plan, etc. I get that people are busy but this is YOUR body. DO YOUR RESEARCH. Any way of eating has an impact on your hormones and it is important that you seek out experts rather than rely on information passed to you from your neighbor’s sister. There is a reason that people become experts. Our bodies are amazing creations! An expert can look at your history and determine that you might have metabolic damage and until you reset it, you won’t experience weight loss. An expert can listen to your symptoms and tell you what is normal or what could be an underlying Thyroid issue. An expert can look at your goals and determine the right protocol. If you are a body builder then you will need some carbs. If you are just looking to lose weight then you could do strict keto. It’s not just about what food goes into your body. Also, there’s so many people who are just using it as an excuse to load up on steak, butter, and cheese (just like with Atkins). But you aren’t doing yourself any good if you aren’t getting GOOD QUALITY fats from things like salmon and avocado. Some excellent reading would be Carb Nite solution. He is a physicist and is able to tell you exactly what is happening in your body. Maria Emmerich is another GREAT ONE. Stephanie Ketogenic is a youtuber who has a vast amount of knowledge.
“So I was talking about that and making sure everyone was hearing about that, and then there was one the Journal of the American Heart Association published a few years later that isolated the people who had had a heart attack in the past, the cardiology population that we're seeing, and they were doing a ketogenic diet," Williams told Plant Based News. “It was a 53 percent increase in mortality. No one should be doing this."
The ketogenic diet—also known as "keto"—has become the latest big thing in weight-loss plans, touted recently by celebs like Jenna Jameson, Mama June, and Halle Berry. The diet involves cutting way back on carbohydrates, to 50 grams a day or less, to help the body achieve a state of ketosis, in which it has to burn fat (rather than sugar) for energy.
The diet gets billed as a miraculously enjoyable diet—eat all the fat you want, just cut out the carbs. But the ketogenic diet (also called keto) was never supposed to be fun. It was supposed to treat severe epilepsy. And as a medical treatment, it was only intended to be administered under the supervision of trained nutritionists and physicians. The professionals would be able to monitor patients for potential problems and ensure that their diet was actually keeping them in ketosis—a metabolic state where your body switches from using glucose as energy to using ketone bodies, which come from body fat. They needed those checkpoints because staying in true ketosis is exceptionally challenging for adults.
Would be curious to receive feedback on any of the above! And if anyone is interested in more info on my future Ketone product which will taste great, have 11.7g of BHB, 30 servings and priced lower than all the competitors, then message me on FB under Rhys Kabra, or email email@example.com for status updates on the upcoming new Brand of Ketone products! :)
All I can say is…Keto has been AMAZING for me and a lifesaver. Instated this journey at 240lbs. I’ve been obese for 20 years. My cholesterol was awful. Triglycerides were massively high. I was a walking heart attack. I’ve lost 40 lbs since January and 3 sizes,and a TON of inches. I’ve never felt better in my life. I have so much energy. At 51 I’m going to a local amusement park, walking ten miles and riding record breaking coasters. My cholesterol? My doctor is amazed on all levels. Hes applauding my bew health lifestyle. And I know literally thousands of people online and off line who’ve had thecssme success and some who have lived this way for more than ten years. Just because you didn’t like it doesn’t make it bad. And btw…its not a free for all. Macros depend on the person. My fat levels,aren’t nearly that high and once you reach ketosis you cut down on the fat. THAT is when fat burning starts and the fat burning absolutely happens.
What are the ideal levels of blood sugar? A blood sugar or blood glucose chart identifies ideal levels throughout the day, especially before and after meals. The charts allow doctors to set targets and monitor diabetes treatment, and they help people with diabetes to self-assess. Learn more about guidelines, interpreting results, and monitoring levels here. Read now
The BBB, largely formed by the brain capillary endothelial cells, provides a protective barrier between the systemic blood and the extracellular environment of the CNS. Passage of FAs from the blood to the brain may occur either by diffusion or by proteins that facilitate their transport. Studies indicate that FATP-1 and FATP-4 are the predominant FA transport proteins expressed in the BBB based on human and mouse expression studies (Mitchell et al., 2011).
I am hoping that keto had nothing to do with it. He expressed to be on several occasions that he felt the best he'd ever felt in his life while doing keto. After he died I went to a cardiologist to be checked out and my heart is fine. Dr said he actually supports keto in the lean meat and veggies vs of it plus healthy fats. Not a ton of red meat etc. Also highly supports intermittent fasting.
Diabetic ketoacidosis occurs when ketone levels become too high and poison the body. This condition is more common in people with type 1 diabetes because their bodies don’t make insulin. In the event that their ketone level rises, their bodies are unable to produce insulin to slow down this production. If left untreated, this condition can lead to a diabetic coma or death.
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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:
Introducing @keykeypeaches: I started my keto diet late September and I am currently still dieting. I lost 35lbs by the beginning of March. I had my daughter in January 2017.After caring for my new family, I forgot to care about my self. I forgot to keep myself healthy and happy. The keto diet and regular exercise has made me into the healthy mom and wife my family and I deserve. . . . #myketotransformation #fitspiration #weightloss #weightlossjourney #ketofam #weightlossmotivation #transformation #fitfam #weightlosstransformation #extremeweightloss #fitness #instafit #inspiration #motivation #fitnessmotivation #beforeandafter #diet #exercise #trainandtransform #beforeandafterweightloss #biggestloser #keto #lowcarb #lchf #ketotransformations