In terms of epigenetic signaling, initial studies of the effects of BOHB on class-1 histone deacetylase activity against oxidative stress (Schimazu 2013), NLRP3 inflammasome suppression (Youm 2015), mouse longevity (Roberts 2017), and other epigenetic regulatory effects suggest that levels as low as 1 mM have potent effects. Furthermore, the association between very mild ketonemia and reduced coronary mortality with SGLT2 inhibitor use in patients with type 2 diabetes (Ferranini 2016) suggests that there might be clinical benefits with chronic BOHB levels as low as 0.3 mM (Gormsen 2017. Vetter 2017).
The body will start making ketones when either we go extended periods without food, or we restrict the one dietary component that stops ketone formation – this being carbohydrates and also minimising protein intake as this also can halt ketone. In turn, your primary source of food is fat, with very little carbohydrate and a small amount of protein.”
For anyone who wants to get a bit more technical, research by Stubbs and colleagues shows that BHB shuts off lipolysis (fat breakdown). With endogenous ketosis there are many other factors that stimulate lipolysis meaning that a kind of balance is reached and lipolysis stays constant. But with exogenous ketosis those factors stimulating ketosis are not present, so the overall effect of the ingested BHB is to decrease lipolysis.
At day 29 of the study, animals were euthanized and brain, lungs, liver, kidneys, spleen and heart were harvested and weighed. Organ weights were normalized to body weight. Ketone supplementation did not significantly change brain, lung, kidney, or heart weights compared to controls (Fig. 5a, b, d, f). MCT supplemented animals had significantly larger livers compared to their body weight (p < 0.05) (Fig. 5c). Ketone supplements BMS + MCT, MCT and BD caused a significant reduction in spleen size (BMS + MCT p < 0.05, MCT p < 0.001, BD p < 0.05) (Fig. 5e). Rats administered KE gained significantly less weight over the entire study compared to controls. BMS + MCT, BMS, and BD supplemented rats gained significantly less weight than controls during weeks 2 – 4, and MCT animals gained less weight than controls at weeks 3 – 4 (Fig. 6). Increased gastric motility (increased bowel evacuation and changes to fecal consistency) was visually observed in rats supplemented with 10 g/kg MCT, most notably at the 8 and 12-h time points. All animals remained in healthy weight range for their age even though the rate of weight gain changed with ketone supplementation [53–54]. Food intake was not measured in this study. However, there was not a significant change in basal blood glucose or basal blood ketone levels over the 4 week study in any of the rats supplemented with ketones (Fig. 7).
Divided attention involves processing multiple streams of information. The game involves observing a pond full of koi fish swimming around, and tapping each fish only once to feed it a pellet without feeding any fish previously fed. Each level adds more fish with increasing speed and redirection. It’s similar to pretending to be an air-traffic controller who must keep track of every plane on their radar.
There is so much talk about the benefits of a ketogenic diet and its ability to improve fat burning, brain health, energy and anti-aging. The main units of energy on a ketogenic diet are ketone bodies, of which beta hydroxybutyrate (BHB) is the main player! This article will go over the health benefits of BHB and exogenous ketones. Additionally, this article will cover strategies on using exogenous ketones in your daily life.
You may wonder why we are emphasizing on using these specific oils. Well, this is because the extra virgin oil is an unprocessed form, and contains lauric acid that is antimicrobial in nature and is good for brain health. (This is the same lauric acid that is naturally found in breast milk as well.) Its antibacterial property also indirectly supports the growth of Candida that keep your gut healthy.
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Long-Term Effects of a Ketogenic Diet in Obese Patients – The present study shows the beneficial effects of a long-term ketogenic diet. It significantly reduced the body weight and body mass index of the patients. Furthermore, it decreased the level of triglycerides, LDL cholesterol and blood glucose, and increased the level of HDL cholesterol. Administering a ketogenic diet for a relatively longer period of time did not produce any significant side effects in the patients. Therefore, the present study confirms that it is safe to use a ketogenic diet for a longer period of time than previously demonstrated.(http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716748/)
Some people follow more of an Ultra Low Carb diet approach. This is generally around 50g or less of carbs per day. A ULC is more supportive of reaching a ketogenic state, but again total carbs are not the only variable when it comes to reaching ketosis (other factors such as types of carbs, protein consumption, portion size, ingredients, supplements used etc. all play a role and will be covered in more detail below).
Personally, I do this on Friday night to Saturday night, so if something happens and my hunger hasn’t crashed by Sunday morning, I have another day that I can go zero carb to keep the momentum going. While the body will trigger ketosis as soon as you run out of glycogen, hunger is attached to your triglyceride and insulin levels, which might take an extra day to normalize.
It’s not clear that the Weir coefficients used to estimate EE are relevant for someone in ketosis, let alone someone ingesting exogenous BHB. (The Weir formula states that EE is approximated by 3.94 * VO2 + 1.11 * VCO2, where VO2 and VCO2 are measured in L/min; 3.94 and 1.11 are the Weir coefficients, and they are derived by tabulating the stoichiometry of lipid synthesis and oxidation of fat and glucose and calculating the amount of oxygen consumed and carbon dioxide generated.) While this doesn’t impact the main observation—less oxygen was consumed with higher ketones—it does impact the estimation of EE and substrate use.
We are told by our parents, doctors, and the media that milk builds strong bones and that we should take calcium supplements to help protect against osteoporosis. Indeed, calcium deficiency can lead to a plethora of health problems. However, those of us who take calcium supplements or consume calcium-fortified foods and beverages may, in fact, be consuming above the Recommended Dietary Allowance (RDA) of calcium.
With single doses of the D-BHB ester as a sports drink, gastrointestinal (GI) side effects are rare. Some studies have reported mild GI side-effects of HVMN Ketone drinks at extremely high doses (4x serving size) or when given in a thick, meal replacement formulation.10,13 However, other studies of athletes reported there were no side-effects of ketone ester drinks hindering sport performance.11,14
Obviously, cutting carbs is much easier than not eating anything at all for days on end. It's also safer for people with diabetes as it leads to a gradual decline in blood glucose . The carbs you have to reduce are known as net carbs. Those are the carbs that your body uses to make glucose. You calculate them by subtracting the grams of fiber from total carbs in a food item.
Ketostix are very unreliable. There are many factors which can alter results such as hydration level, if you’ve worked out recently and the amount of unused ketones in your body to name just a few. Never rely of Ketostix to determine whether you are in ketosis or not. The Precision Xtra blood ketone monitor is the gold standard for testing for ketones in your body. After following a ketogenic diet for a while, you should be able to tell if you are in ketosis or not by the way you feel.
Recently, a friend of mine’s dad had high blood pressure. His doctor told him to stop consuming eggs and to avoid adding extra salt to his foods. That’s it. His recommendation was to rid a good, high-quality protein source, yet French fries, chicken nuggets, and even chicken noodle soup were all presumably okay. I’ll never understand some of these recommendations; nonetheless, they happen day in and day out, all over the world.
Interestingly, the effects of exogenous ketones on blood substrate concentrations were preserved with the metabolic stimulus of a mixed meal. Following KE drinks, FFA and glucose fell and remained low in both fed and fasted subjects, despite higher insulin throughout the fed arm, suggesting that there was no synergistic effect of insulin and βHB to further lower blood glucose or FFA. In agreement with previous work, the threshold for the effects of βHB on glucose and lipids appears to be low (<1 mM), as there was no significant dose-response relationship between increasing blood βHB and the small changes in plasma FFA, TG or glucose across all of the study drinks (Mikkelsen et al., 2015).
I’m getting an increasing number of questions about exogenous ketones. Are they good? Do they work for performance? Is there a dose-response curve? If I’m fasting, can I consume them without “breaking” the fast? Am I in ketosis if my liver isn’t producing ketones, but my BOHB is 1.5 mmol/L after ingesting ketones? Can they “ramp-up” ketogenesis? Are they a “smart drug?” What happens if someone has high levels of both glucose and ketones? Are some products better than others? Salts vs esters? BHB vs AcAc? Can taking exogenous ketones reduce endogenous production on a ketogenic diet? What’s the difference between racemic mixtures, D-form, and L-form? What’s your experience with MCTs and C8?
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