Intermittent fasting reddit science Intermittent fasting is not some magic tool to weight loss, it will only help if you are struggling to stick to a regular weight loss diet. It seemed like the best non-surgical and non-medicated weight loss success stories were coming from intermittent fasting. He realized he needed to get back Intermittent fasting led to immune and metabolic changes among people with multiple sclerosis. Intermittent Fasting: The Science of Going Without. The body switches energy sources from glucose to fat within first 2-3 days of fasting. I’ve been fasting for 12-16 hours for about 6 months now. Intermittent fasting and extended fasting I've had this question nagging me for a while and considering this place has the most thoughtful and civil discussion I've seen in a subreddit maybe ever, it seemed like a good place to ask. The authors suggest that reduced physical activity among fasters is a likely explanation. People engage in IF to reap the many benefits to health, fitness, and mental clarity. Research shows that intermittent fasting is a way to manage your weight and prevent — or even reverse — some forms of disease. Many diet and exercise trends have origins in legitimate science, though the facts tend to get distorted by the time they achieve mainstream popularity. And aren't the main goal of semen retention to protect our sperm and not to waste it? Also fasting aren't good for muscle building and can cause muscle breakdown however theirs quite a few articles and different Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. But how do you do it? And is it safe? We would like to show you a description here but the site won’t allow us. The intermittent fasting–provoked upregulation of butyric acid–producing Lachnospiraceae provides an obvious possible mechanistic explanation for health effects associated with intermittent fasting. Outside that time period, you just drink water. They show that adding these two amino acids without fasting produces similar effects as fasting. It’s extremely popular imo, really don’t feel like this is like an exclusive club or anything. This is called “16/8” intermittent fasting because you’re fasting for 16 hours and eating for 8 hours. New evidence for health benefits of fasting, but they may only occur after 3 days without food. Led to a less aggressive MS disease course and eased inflammation in mouse models Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. It started with a study that suggested the lifespan of rats was prolonged with a lifestyle of intermittent fasting. Intermittent fasting works by reducing the time you have to consume calories (gain weight). . One needn’t look any further than the emerging trend of intermittent fasting for a prime example. And on Tuesday night I decided to do a longer one. Sep 8, 2025 · To answer these questions, we must peel back the layers: the biological science, the psychological impact, the cultural roots, and the myths that surround intermittent fasting. Macronutrients, micronutrients, vitamins, diets, and nutrition news are among the many topics discussed. Intermittent Fasting Produces Indeterminate Effects on Brain-Derived Neurotrophic Factor Levels in Humans El ayuno intermitente produce efectos indeterminados sobre los niveles de factores neurotróficos derivados del cerebro en humanos We would like to show you a description here but the site won’t allow us. Large-scale study shows that intermittent fasting, without other interventions, is ineffective for weight loss and can reduce muscle mass Does intermittent fasting have benefits independent of daily caloric restriction? Is longevity associated with fasting only because of restricted daily energy intake and output? Some people enjoy fasting because of the rest cycle it creates for your digestive track. Time-restricted eating, also known as intermittent fasting, can help people with Type 2 diabetes lose weight and control their blood sugar levels, according to a new study published in JAMA Network Open from researchers at the University of Illinois Chicago. Intermittent Fasting (IF) is way of eating that restricts *when* you… Intermittent fasting vs eating breakfast for fat loss, muscle gain, metabolism Not sure if this is the right place to ask or if this is better suited for a weight loss or bodybuilding sub, but hopeful there are some knowledgeable people here in regards to this. Fasting is simple you don't eat for your chosen fasting time be it 24hrs or more. give you the insane abs you've always wanted! overweight. Both dietary weight loss strategies are equally successful in leading to a more diverse gut microbiome, which is associated with better health and leanness. Redirecting Redirecting Abstract Fasting is a prevalent approach to weight loss and is a feasible method for treating some diseases, such as type 2 diabetes. Intermittent fasting is an effective method for weight loss and enhances cardiovascular health Apr 15, 2025 · Discover a variety of evidence-based benefits of intermittent fasting, from weight loss to reduced risk of diabetes to better heart health. Intermittent fasting is an eating plan that switches between fasting and eating on a regular schedule. Oct 30, 2020 · Growing evidence shows that intermittent fasting leads to significant weight loss. They find that two amino acids, sarcosine and dimethylglycine, are increased during fasting. There are several programs, but this guide can help you find which one is right for you. It has become popular as a weight loss tool, so people want to know if it's effective and whether it can work for them, and a recent study attempted to provide some answers. Sep 24, 2025 · She recently spoke about her intermittent fasting research and interest in exploring questions around diet quality, as well as her plans to support nutrition research through the Department of Nutrition’s new kitchen. Jun 22, 2025 · All intermittent fasting strategies and continuous energy restriction diets may lead to small reductions in body weight when compared with an unrestricted diet. I didn't think the goal of intermittent fasting was necessarily to lose weight. Yea they are, I fell off the fasting bandwagon and gained 20 pounds back on but luckily my eye floaters have not got any worse. Jan 16, 2025 · Intermittent fasting, especially early fasting, helps with weight loss and improves heart health by reducing abdominal fat and regulating glucose. Risks are downplayed. give you the insane abs you've always wanted! Read the full review here er's Science Based Six Pack At-Home Fasting Program was created to do what other abs programs cannot do. Intermittent fasting is basically eating within restricted periods of the day. , & Spencer, M. This article introduces the effects of fasting on human lipid metabolism, glucose metabolism I started fasting today and I wanted to start working out too. I started doing intermittent fasting because I used to scroll through progress pics and just kept seeing post after post of dramatic success stories. But is it a proven and effective method? Does anyone know of any popular studies that support it? Intermittent fasting - A practice of restricting eating to specific “windows”. It’s why I personally don’t really “need” scientific evidence or peer-reviewed studies to believe that intermittent fasting is beneficial for my body; I can feel that it has positive effects. Another reason why fasting can increase Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. What does science say about intermittent fasting? We met with Cameron’s Registered Dietitian, Kylee Fitzpatrick, to break down the pros and cons. Im back on fasting now and hoping I can make more of the eye floaters disappear through autophagy, Im currently sticking to OMAD. /r/EverythingScience is the sister subreddit to /r/science. Taking a single bite of food during a fasting period will not completely eliminate all of the effects of fasting on the brain and body. During a fasting state there is an increase in the stress response which in turn leads to increases in the levels of both good (High Density Lipoprotein) and bad (Low Density Also: If intermittent fasting is for burning fat and losing weight, how can one do it constantly? I mean, you can not lose weight forever, otherwise you would "disappear". I see people Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. Intermittent fasting from dawn to sunset for 30 consecutive days is associated with anticancer proteomic signature and upregulates key regulatory proteins of glucose and lipid metabolism, circadian clock, DNA repair, cytoskeleton remodeling, immune system and cognitive function in healthy subjects V2. IF is an 18+ community because the practice is not medically recommended to/for children. It seems to actually improve cognition. Intermittent fasting has many health benefits, including weight loss, increased insulin sensitivity, and a reduced risk of cardiovascular disease. Previous work in this area had only been conducted in animal models. Fasting is healthy too in moderation. If you're looking for metastasis and digestive health you should stick with water, ideally room temp. A history of intermittent fasting is associated with increased disordered eating behaviors Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. 886K subscribers in the intermittentfasting community. Thomas DeLauer's Science Based Six Pack At-Home Fasting Program created to do what other abs programs cannot do. A study has looked at how intermittent fasting can affect hormone levels in pre- and post-menopausal women. Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. Jan 10, 2025 · A new study suggests that intermittent fasting is more effective than calorie-counting for weight loss and belly fat burn. r/KetoScience is dedicated to being the center for online discussion on the latest scientific discoveries in the broad and expanding role of the ketogenic diet in reversing chronic disease. Study shows that not only does fasting improve eyesight, but the eye actually directly regulate lifespan. 0 Our primal ancestors fasted regularly, due to poor access to food. I've seen that most recommend doing fast of around 72+ hours max for most health benefits. For example, a common window is 12pm - 8pm, an 8 hour window. Hours 18-24 were the absolute hardest for me, but after you are past that point you start getting a little “high” and Jul 28, 2022 · Intermittent fasting is limiting the window of time each day when a person eats. 29 Key takeaways: They show that in mice, intermittent fasting reduces signs and symptoms of Alzheimer's. Intermittent fasting two days versus one day per week, matched for total energy intake and expenditure, increases weight loss in overweight/obese men and women - Nutrition Journal nutritionj. Intermittent fasting is a way to increase ketogenesis without necessarily being on a “ketogenic” diet (source). Alternate day fasting was the only intermittent fasting diet strategy to show a small benefit in body weight reduction compared with continuous energy restriction (mean difference -1. Nov 1, 2024 · Intermittent fasting is an increasingly popular diet option for weight loss. 10 votes, 41 comments. The Science Behind Working Out on an Empty Stomach Working out on an empty stomach, also known as fasted training, is a topic of much discussion in the intermittent fasting workout on empty stomach reddit threads. How much to long fast for longevity and health? Hi all! I've been practicing intermittent fasting for years now. The science behind this practice suggests that it can actually be beneficial for They say in the study this in support of a complementary approach: Intermittent fasting should be further evaluated for potential short-term and long-term preventive or therapeutic use as a complementary approach to vaccines and antiviral therapies for reducing COVID-19 severity. It’s really not that ridiculous when you consider that people have been testing intermittent fasting for health benefits, and that part of that is testing different fasting lengths, and it turns out that just 12 hours daily has effects. Dec 9, 2024 · Here's what the science says about the benefits and drawbacks of intermittent fasting. Jul 20, 2020 · When it comes to weight loss, intermittent fasting has been called "transformative" and "life-changing". So I know a lot of people fast while on semen retention but is it a good thing to do? I saw a few scientific articles that say that fasting can have a negative affect on sperm. We discuss type 2 diabetes, gout, Alzheimer's, mild cognitive impairment, obesity, epilepsy, mental Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. This is per the Stronger By Science Podcast, which reviews peer-reviewed literature. What is the difference between being in a keto state and fasting state? From my understanding of fasting, largely obtained from interviews with Jason Fung, your body would have to produce ketones while Fasting can allow the body to rebalance itself and helps prevent over-accumulation of certain things in the body (I learned Vitamin D is stored in/with fat in the body and you shouldn't eat too many pills) Fasting makes the body rely on its fat reserves and thus somehow makes the body healthier??? As in all things, everything to a degree. 13 votes, 32 comments. Here’s a look at the 5 stages of fasting and how each improves your health. So if people claim that intermittent fasting is better for the body, if anything it can only work if you eat your food just some time else but eat the same overall amount. True fasting has shown benefits to different physiological properties, but is being done for days not hours to get true (psychological benefits and physiological benefits). Biology technologynetworks. Intermittent Fasting significantly reduced systolic blood pressure (SBP), but not diastolic blood pressure (DBP). The effects are likely due to weight loss. Intermittent fasting enhances long-term memory consolidation, adult hippocampal neurogenesis, and expression of longevity gene Klotho. Periodic fasting has been shown to lower one's risk of coronary artery disease, diabetes, triglycerides, weight, and blood sugar levels. Many complex mechanisms underlie this phenomenon. A growing body of evidence indicates that Intermittent Fasting (IF) is a viable alternative to daily caloric restriction, showing effectiveness as a weight loss intervention. Intermittent Fasting (IF) is way of eating that restricts *when* you… Jun 3, 2025 · Intermittent fasting has five different stages and each one comes with unique benefits. : r/science We would like to show you a description here but the site won’t allow us. ELI5: What is the fundamental science behind the idea of "Intermittent Fasting" and how does it work? : r/explainlikeimfive r/explainlikeimfive Current search is within r/explainlikeimfive Remove r/explainlikeimfive filter and expand search to all of Reddit Read up on intermittent fasting. Be aware of that and avoid all of it. New discovery finding that the soleus pushup’s ability to sustain an elevated oxidative metabolism to improve the regulation of blood glucose is more effective than any popular methods currently touted as a solution including exercise, weight loss and intermittent fasting. This safe method could be effective for managing obesity. 920K subscribers in the intermittentfasting community. Advocates for taking periodic breaks from eating Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. Mar 18, 2024 · The meeting offers the latest science on population-based health and wellness and implications for lifestyle. 14 votes, 27 comments. There are effects from a lot of things doesn't mean we should call all of those fasting too. Sometimes anecdotal evidence is enough in that way. The Fast Diet: Lose Weight, Stay Healthy and Live Longer with the Simple Secret of Intermittent Fasting. com Open Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. Mar 22, 2025 · The science behind intermittent fasting and brain chemistry Intermittent fasting isn’t just about when you eat — it’s about how your brain responds to the absence of food. IF is simple in nature, don't eat during your fasting time eat only in your feeding window. 2 is almost as good. I have to have breakfast within 2 hours of waking up, or I'll be bloated and feel like death after my first meal of the day. We discuss type 2 diabetes, gout, Alzheimer's, mild cognitive impairment, obesity, epilepsy, mental May 3, 2024 · This is a detailed guide to intermittent fasting (IF). Here, leading researcher Satchin Panda explains how it works and what it can — and can't do — for you. This is a place to share success, support each other, ask questions, and learn. It also causes changes in a person's circulating blood cholesterol levels. Jul 19, 2025 · Explore a balanced review of intermittent fasting research, distinguishing between established findings, proposed mechanisms… Mar 5, 2025 · Discover the scientific evidence behind intermittent fasting and how it affects your body at a cellular level. Intermittent fasting is the quickest way for me to lose my gains. At first, I was just going to do 24 hours but then I read a little bit more on the subject and the best benefits come after a 36-hour fast. There are some societies where fasting people live as neighbors with non-fasters in similar socioeconomic circumstances. However, those new to fasting may experience bloating, gas, discomfort, and other digestive issues as the gastrointestinal tract adapts to a new way of eating. Intermittent fasting and calorie restriction change the microbiome composition in the gut, which could affect other functions in the body. Alluding to the research of fasting and the benefits thereof. I feel so accomplished. OMAD is when you literally eat "one meal a day" you choose when. 3+ meals/day was found to be optimal. A couple questions to consider: **Why are you resistance training?**If you're trying to gain mass, this is possible while intermittent fasting. My understanding of Mounjaro is that it releases two hormones that basically promote the body to release insulin, which in turn makes you feel full. May 27, 2022 · There is a lot of hype around intermittent fasting, but what are its actual benefits, and what are its limitations? We lay bare the myths and the facts. It kind of makes sense to just not eat, the dominant hormonal profile of the body in a fasting state (and all the downstream metabolic effects) act in opposition of the above non-cancerous disease states. It's purported to help reduce inflammatory markers in the body and help better stabilize blood sugar, which reduces the post-meal grogginess feeling. Last year I began my own intermittent fasting journey. I'm also fasting at the moment (44+ hours) and my record is 80 hours. Yeah same. Learn about autophagy, metabolic switching, and the long-term benefits of time-restricted eating. A subreddit for the discussion of nutrition science. So I would personally get to 18-20 hours pretty quickly because u can’t really eat a lot of crap in 4 hours . Many people still do for spiritual reasons. Depending on what you are are looking for from fasting will determine what you consider fasting. Researchers have demonstrated for the first time a link between diet, circadian rhythms, eye health and lifespan in Drosophila. You will never experience headaches the same. 18K subscribers in the FastingScience community. Intermittent Fasting Lowers Triglycerides More Than Regular Diet : r/ketoscience r/ketoscience Current search is within r/ketoscience Remove r/ketoscience filter and expand search to all of Reddit Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. MembersOnline A subreddit for the discussion of nutrition science. We post RCTs, prospective cohorts, epidemiology, and case studies and discuss the pro's and con's of each. A dietitian explains how to start. We would like to show you a description here but the site won’t allow us. A recent study contradicted these findings, but the way this study was designed and implemented raises some questions about its conclusions. Science takes a back seat to marketing. Aug 21, 2024 · Low-calorie diets and intermittent fasting have been shown to have numerous health benefits: They can delay the onset of some age-related diseases and lengthen lifespan, not only in humans but many other organisms. Intermittent Fasting according to the 16:8 regime over a fasting period of three months significantly improved several aspects of the QoL and decreased fatigue in healthy people, while maintaining a good safety profile. For example, instead of eating 6 meals in the day, you eat 2 larger meals between 12-8pm. Does this run against a benefit of intermittent fasting which is to reduce insulin so the body can start getting to ketosis? I feel like intermittent fasting (at least not eating breakfast) is something that is common advice. Brain scans now show that fasting doesn't just influence how we eat Thank you. Has there ever been a point in history when a famine struck and the fasting group was shown to have been more famine resistant than the non-fasting group? Fasting and taking vitamin c supplements every hour is the way. 1 slows growth. Being in a fasting state activated your brain's survival mechanisms, which means it is working harder to find food. (2013). Canadian Medical Association Journal, 185 (9) Mosley, M. Not a doctor, I read about it in a book a while ago and am currently speaking from personal experience. Ketosis - A state where your body prioritizes converting fat into energy because carbohydrate (preferred) sources are low. Researchers find simpler alternative to intermittent fasting, this novel method consist in a short-term isoleucine deprivation, and it has shown remarkable results in fruit flies and "does not require drastic reductions in overall food intake" Intermittent fasting and calorie restriction change the microbiome composition in the gut, which could affect other functions in the body. Meanwhile, the effects of intermittent fasting on health, aging, and disease process are hot issues and are of concern by researchers of multiple areas, even the public. Civil discourse is required. Intermittent fasting, like most big self-improvement trends, has a tendency to get a bit culty. As an alternative to CR, there has been growing interest in intermittent fasting (IF) in both the scientific and lay community as a result of promising study results, mainly in experimental animal models. Many bodybuilders wonder if training without eating first impacts their muscle growth and fat loss. Benefits are exaggerated. May 11, 2025 · Intermittent fasting has long been associated with weight loss, but new research suggests its effects go far beyond metabolism. Most people do it for weight loss, so they can fast dirty. Intermittent Fasting: how has your experience been, and did you experience any negative side effects? Jul 20, 2020 · When it comes to weight loss, intermittent fasting has been called "transformative" and "life-changing". Studies show that it can help you lose weight, improve health and perhaps even live longer. The bigger role of intermittent fasting for me is to prevent people from snacking out of habits . People claim that it does things like improving mental clarity, regulating hormones, controlling hunger- frankly, I don’t know how true that is and if you want to know more of the science behind it, you can and should discuss it with your doctor. Valter Longo recommends 3-5 days, but that's the FMD. Overall, 1 in 3 of the proteins changed significantly during fasting across all major organs, including in the brain. Time-restricted eating, a type of intermittent fasting, involves limiting the hours for eating to a specific number of hours each day, which may range from a 4- to 12-hour time window in 24 hours. May 19, 2025 · But amidst the hype and hashtags, the important question remains: Does intermittent fasting really work? Before we can answer that, we need to dig deep—not just into the science but also into history, biology, and the psychology of how we eat. With a broader rule set than /r/science, it is the place for high quality scientific content that doesn't necessarily reference a peer-reviewed paper from the last 6 months. I was wondering what would be an ideal time or phase in IF when a person should workout? There were couple of concerns which brought me to ask this question If you are already 12 hours in the fast would it impact long workout session due to feeling less energy? Is there a phase during the fast where your workouts would have higher We would like to show you a description here but the site won’t allow us. : r/science Gaming Sports Business Crypto Television Celebrity I'm interested in giving Intermittent Fasting a try, especially since I'm not a big breakfast eater. biomedcentral This thread is archived New comments cannot be posted and votes cannot be cast Intermittent Fasting Less Effective at Burning Body Fat Than Daily Dieting: A trial of the effects of fasting diets showed that traditional dieting burned more body fat than trendier alternate-day fasting. I believe the theory is that fasting is our default state, and abundance of food is something unnatural that has only occurred in the last few thousand years. eokoxx mydfu vou awmllp eaq kijau gzvusri lbxw rqqx cwm raboif ehauw xxdvs vguem mczot