However, it is not entirely clear how they do this, what they're supposed to eliminate or if they actually work.
Photo credit: Shutterstock
This is a detailed review of detox diets and their health effects.
What is a Detox?
Detox diets are generally short-term dietary interventions designed to eliminate toxins from the body.
A typical detox diet involves a period of fasting, followed by a strict diet of fruit, vegetables, fruit juices and water. Sometimes a detox also includes herbs, teas, supplements, colon cleanses or enemas.
These methods claim to:
- Rest the organs by fasting
- Stimulate the liver to get rid of toxins
- Promote toxin elimination through feces, urine and sweat
- Improve circulation
- Provide the body with healthy nutrients
Detox therapies are most commonly recommended because of exposure to toxic chemicals in the environment or diet. These include pollutants, synthetic chemicals, heavy metals and other harmful compounds.
The Most Common Ways to Detox
There are many ways to do a detox diet, ranging from total starvation fasts and juicing to simpler food modifications.
Most detox diets involve at least one of the following (1):
- Fasting for 1 to 3 days
- Drinking fresh fruit and vegetable juices, smoothies, water and tea
- Eliminating foods high in heavy metals, contaminants and allergens
- Taking supplements or herbs
- Avoiding all allergenic foods and then slowly reintroducing them
- Using laxatives, colon cleanses or enemas
- Exercising regularly
The different detox diets vary in intensity and duration.
Which Toxins are Eliminated?
Detox diets rarely identify the specific toxins they aim to remove or how exactly they eliminate them. In fact, there is little to no evidence that detox diets actually remove any toxins from your body.
More importantly, there is really no scientific evidence backing up the claim that our bodies are loaded with toxins and need to be cleansed. Your body is actually very capable of cleansing itself, through the liver, feces, urine and sweat. The liver makes toxic substances harmless and then makes sure they're released from the body (3, 4, 5, 6, 7).
These tend to accumulate in fat tissue or blood and can take a very long time, even years, for the body to get rid of (12, 13, 14). However, generally speaking, these compounds are removed from or limited in commercial products today (15).
Do Detox Diets Work?
Some people report feeling more focused and energetic during and after detox diets.
However, this improved well-being may simply be due to eliminating processed foods, alcohol and other unhealthy substances from your diet. You may also be getting vitamins and minerals that were lacking before.
On the other hand, many people also report feeling very unwell during the detox period. There is some evidence from animal studies that indicates coriander, an algae called chlorella and several types of fruit acids and pectin may help eliminate toxic metals and organic pollutants (2).
Detox Diets and Weight Loss
Currently, very few scientific studies have investigated the effectiveness of detox diets for losing weight (2). While some people may lose a lot of weight quickly, this seems to be due to loss of fluid and carb stores rather than fat. This weight is therefore usually regained quickly once you start eating normally again.
The weight loss effects of one detox diet, called the “lemon detox diet," was studied recently in overweight Korean women. It involves consuming only a mixture of organic maple or palm syrups and lemon juice for seven days.
This diet significantly reduced body weight, body mass index, body fat percentage, waist to hip ratio and waist circumference, in addition to reducing markers of inflammation in the body (16). The results also indicate a beneficial effect on hormones by reducing insulin resistance and circulating leptin levels.
If a detox diet involves severe calorie restriction, then it will most certainly cause weight loss and improvements in metabolic health.
However, this type of “crash" dieting probably won't lead to long-term results unless you change your lifestyle at the same time.
Detox Diets, Short-Term Fasting and Stress
Several varieties of detox diets may have effects similar those from short-term fasting or intermittent fasting. Short-term fasting may improve various disease markers in some people, including improved leptin and insulin sensitivity (17, 18).
However, these effects do not apply to everyone. Studies in women have shown that both a 48-hour fast and a 3-week period of reduced calorie intake may increase the levels of stress hormones (19, 20). On top of that, crash diets can be stressful. They involve resisting temptation and feeling hunger and deprivation (21, 22).
Beneficial Aspects of Detox Diets
There are a few aspects of detox diets that may have health benefits (4). These include:
- Avoiding heavy metals and persistent organic pollutants
- Eliminating toxins from body fat by losing excessive fat
- Exercising and sweating regularly
- Eating whole, nutritious and healthy foods
- Avoiding processed foods
- Limiting stress and getting good sleep
Following these guidelines is generally linked with improved health, no matter whether they involve a detox or not.
Safety and Side Effects
Before doing any sort of detox, it is important to consider possible side effects.
Several detox diets recommend fasting or severe calorie restriction. Short-term fasting and limited calorie intake can result in fatigue, irritability and bad breath. Long-term fasting can result in energy, vitamin and mineral deficiencies, electrolyte imbalance and even death (23).
Furthermore, colon cleansing methods, which are sometimes recommended during detoxes, can cause dehydration, cramping, bloating, nausea and vomiting (24).
Some detox diets may pose the risk of overdosing on supplements, laxatives, diuretics and even water. There is a lack of regulation and monitoring in the detox industry and many detox foods and supplements may not have any scientific basis.
Who Should Avoid Detox Diets?
Some groups of people should not start any detox programs or calorie-restricting regimens, at least not without consulting with a doctor first.
This includes children, adolescents, elderly people, the malnourished, pregnant or lactating women, and people who have blood sugar issues or medical conditions, such as diabetes or an eating disorder.
Don't Put Junk in Your Body
People encounter toxic substances all the time. Most of the time, however, your body does a perfectly good job of removing them without any additional help.
If doing a detox diet helps you to start eating and feeling better, then it is a great thing. But this probably has nothing to do with eliminating toxins, but simply the fact that you're putting less junk in your body.
A much smarter approach is to avoid putting toxic things (junk food, cigarette smoke, etc.) in your body in the first place.
This article was reposted from our media associate Authority Nutrition.
YOU MIGHT ALSO LIKE
EcoWatch Daily Newsletter
If weather is your mood, climate is your personality. That's an analogy some scientists use to help explain the difference between two words people often get mixed up.
Size Matters<p>Climates are a bit like woven tapestries. The big picture is important, no question. But so are all the seemingly minor details found inside the larger whole.</p><p><a href="https://research-information.bris.ac.uk/en/persons/tommaso-jucker" target="_blank">Tommaso Jucker</a> is an environmental scientist at the University of Bristol. In an email, Jucker says he'd define the term microclimate as "the suite of climatic conditions (temperature, rainfall, humidity, solar radiation) measured in localized areas, typically near the ground and at spatial scales that are directly relevant to ecological processes."</p><p>We'll talk about that last bit in a minute. But first, there's another criteria to discuss. According to some researchers, a microclimate — by definition — must differ from the larger area that surrounds it.</p><p><a href="https://www.cfc.umt.edu/research/paleoecologylab/publications/Davis_et_al_2019_Ecography.pdf" target="_blank">Forests</a> provide us with some great examples. "The climate near the ground in a tropical rainforest is dramatically different from the climate in the canopy 50 meters [164 feet] above," says University of Montana ecologist <a href="https://www.cfc.umt.edu/personnel/details.php?ID=1110" target="_blank">Solomon Dobrowski</a> in an email. "This vertical gradient among other factors allows for the staggering biodiversity we see in the tropics."</p><p>Likewise, scientists observed that a 2015 partial <a href="https://animals.howstuffworks.com/insects/bees-stopped-buzzing-during-2017-solar-eclipse.htm" target="_blank">solar eclipse</a> caused the air temperature of an Eastern European meadow to <a href="https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/wea.2802" target="_blank">change more dramatically</a> than it did in a nearby forest. That's because trees provide not only shade, but their leaves also reflect solar radiation. At the same time, forests tend to reduce wind speeds.</p><p>All those factors add up. A 2019 review of 98 wooded places — spread out across five continents — found that forests are 7.2 degrees Fahrenheit (4 degrees Celsius) <a href="https://natureecoevocommunity.nature.com/posts/47363-forests-protect-animals-and-plants-against-warming" target="_blank">cooler on average</a> than the areas outside them.</p><p>Now if you hate the cold, don't worry; there's a cozy exception to the rule. According to that same study, forests are usually 1.8 degrees Fahrenheit (1 degree Celsius) warmer than the external environment during the wintertime. Pretty cool.</p>
A Bug's Life<p>When does a microclimate stop being, well, micro? In other words, is there a maximum size we should be aware of when discussing them?</p><p>Depends on who you ask. "In terms of horizontal scale, some have defined 'microclimate' as anything that is less than 100 meters [328 feet] in range," Jucker says. "I'm personally less prescriptive about this."</p><p>Instead, he says the "scale at which we want to measure [a particular] microclimate" ought to be "dictated" by the questions we're trying to answer.</p><p>"If I want to know how temperature affects the photosynthesis of a leaf, I should be measuring temperature at centimeter scale," Jucker explains. "If I want to know if and how temperature affects the habitat preference of a large, mobile mammal, it's probably more relevant to capture temperature variation across [tens to hundreds] of meters."</p><p>For instance, solitary plants have the power to generate itty-bitty microclimates. Just ask <a href="https://www.colorado.edu/geography/peter-blanken-0" target="_blank">Peter Blanken</a>, a geography professor at the University of Colorado, Boulder and the co-author of the 2016 book, "<a href="https://amzn.to/2XN6FT8" target="_blank">Microclimate and Local Climate</a>."</p>
The urban heat island effect is a good example of how microclimates work. NOAA
Microclimates on a Grand Scale<p>It's no secret that our planet is going through some rough times at the macro level. The global temperature is <a href="https://climate.nasa.gov/vital-signs/global-temperature/" target="_blank">climbing</a>; nine out of the <a href="https://www.noaa.gov/news/2019-was-2nd-hottest-year-on-record-for-earth-say-noaa-nasa" target="_blank">10 hottest years on record</a> have occurred since 2005. And by one recent estimate, roughly 1 million species around the world are <a href="https://ipbes.net/sites/default/files/2020-02/ipbes_global_assessment_report_summary_for_policymakers_en.pdf" target="_blank">facing extinction</a> due to human activities.</p><p>"One of the big questions that ecologists and environmental scientists are trying to answer right now is how will individual species and whole ecosystems respond to rapid climate change and habitat loss," says Jucker. "...To me, [microclimates are] a key component of this research — if we don't measure and understand climate at the appropriate scale, then predicting how things will change in the future becomes a lot harder."</p><p>Developers have long understood the impact small-scale climates have on our daily lives. <a href="https://science.howstuffworks.com/environmental/green-science/urban-heat-island.htm#pt0" target="_blank">Urban heat islands</a> are cities that have higher temperatures than neighboring rural areas.</p><p>Plants release vapors that can moderate local climates. But in cities, natural greenery is often scarce. To make matters worse, plenty of our roads and buildings have a bad habit of absorbing or re-emitting heat from the sun. <a href="https://www.google.com/books/edition/Microclimate_and_Local_Climate/LHUZDAAAQBAJ?hl=en&gbpv=1&bsq=urban%20heat%20island" target="_blank">Vehicle emissions</a> don't exactly help the situation.</p><p>Still, it's not like Boston or Beijing are thermal monoliths. Sometimes, the documented temperatures <a href="https://e360.yale.edu/features/can-we-turn-down-the-temperature-on-urban-heat-islands" target="_blank">within a single city</a> vary by 15 to 20 degrees Fahrenheit (8.3 to 11.1 degrees Celsius).</p><p>That's where metro parks and city trees come in. They have nice cooling effects on nearby neighborhoods. "Several cities around the world have developed programs to increase urban green spaces," says Blanken. "Tree planting programs and green roof programs, have been shown to lower surface temperatures, decrease air pollution and decrease surface water runoff (urban flash-flooding) in urban areas."</p>
An "explosive" wildfire ignited in Los Angeles county Wednesday, growing to 10,000 acres in a little less than three hours.
- 10 Wildfires Ignite Around Los Angeles in Unseasonable Wind and ... ›
- 550,000 Acres on Fire in Alaska in Latest Sign of the Climate Crisis ... ›
- Sonoma County Wildfire Spreads 7000 Acres in Less Than Five Hours ›
- What Should We Know About Wildfires in California - EcoWatch ›
- California's Rainless February Points to Dangerous Drought, Early ... ›
By Jeff Berardelli
Note: This story was originally published on August 6, 2020
If asked to recall a hurricane, odds are you'd immediately invoke memorable names like Sandy, Katrina or Harvey. You'd probably even remember something specific about the impact of the storm. But if asked to recall a heat wave, a vague recollection that it was hot during your last summer vacation may be about as specific as you can get.
<div id="ecf36" class="rm-shortcode" data-rm-shortcode-id="c2dcc9d48a6cd61f247df1544539a783"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1290959314132361216" data-partner="rebelmouse"><div style="margin:1em 0">Naming heatwaves is a good idea—making the abstract concrete, the invisible visible. Why should hurricanes and wild… https://t.co/hDWgYb79Ob</div> — Ed Maibach (@Ed Maibach)<a href="https://twitter.com/MaibachEd/statuses/1290959314132361216">1596623660.0</a></blockquote></div>
- Human Activity Caused Latest European Heat Wave, Scientists Say ... ›
- Antarctica Experiences First Known Heat Wave - EcoWatch ›
- Intense Heat Wave Bakes Much of the U.S. - EcoWatch ›
Thailand has a total population of 5,000 elephants. But of that number, 3,000 live in captivity, carrying tourists on their backs and offering photo opportunities made for social media.
- Botswana Auctions Off First Licenses to Kill Elephants Since Ending ... ›
- Wild-Caught Elephants Can Die Up to 7 Years Earlier - EcoWatch ›
- Thailand's captive elephants face starvation amid COVID-19 tourism ... ›
- Thai Tourist Park Sets Captive Elephants Free to Focus On ... ›
- Suffering unseen: The dark truth behind wildlife tourism ›
- Captive Elephants in Thailand May Starve as Tourist Camps Close ... ›
- The Complicated Business of Saving Elephant Tourism: A Skift ... ›
One of the challenges of renewable power is how to store clean energy from the sun, wind and geothermal sources. Now, a new study and advances in nanotechnology have found a method that may relieve the burden on supercapacitor storage. This method turns bricks into batteries, meaning that buildings themselves may one day be used to store and generate power, Science Times reported.
Bricks are a preferred building tool for their durability and resilience against heat and frost since they do not shrink, expand or warp in a way that compromises infrastructure. They are also reusable. What was unknown, until now, is that they can be altered to store electrical energy, according to a new study published in Nature Communications.
The scientists behind the study figured out a way to modify bricks in order to use their iconic red hue, which comes from hematite, an iron oxide, to store enough electricity to power devices, Gizmodo reported. To do that, the researchers filled bricks' pores with a nanofiber made from a conducting plastic that can store an electrical charge.
The first bricks they modified stored enough of a charge to power a small light. They can be charged in just 13 minutes and hold 10,000 charges, but the challenge is getting them to hold a much larger charge, making the technology a distant proposition.
If the capacity can be increased, researchers believe bricks can be used as a cheap alternative to lithium ion batteries — the same batteries used in laptops, phones and tablets.
The first power bricks are only one percent of a lithium-ion battery, but storage capacity can be increased tenfold by adding materials like metal oxides, Julio D'Arcy, a researcher at Washington University in St. Louis, Missouri, who contributed to the paper and was part of the research team, told The Guardian. But only when the storage capacity is scaled up would bricks become commercially viable.
"A solar cell on the roof of your house has to store electricity somewhere and typically we use batteries," D'Arcy told The Guardian. "What we have done is provide a new 'food-for-thought' option, but we're not there yet.
"If [that can happen], this technology is way cheaper than lithium ion batteries," D'Arcy added. "It would be a different world and you would not hear the words 'lithium ion battery' again."
One of the concerns about a warming planet is the feedback loop that will emerge. That is, as the planet warms, it will melt permafrost, which will release trapped carbon and lead to more warming and more melting. Now, a new study has shown that the feedback loop won't only happen in the nether regions of the north and south, but in the tropics as well, according to a new paper in Nature.
- Amazon Deforestation Is Causing 20% of Forests to Release More ... ›
- World's Oceans Warming 40% Faster Than Previously Thought ... ›
- Earth Is Hurtling Towards a Catastrophe Worse Than the Dinosaur ... ›
By Jessica Corbett
A sheriff in Florida is under fire for deciding Tuesday to ban his deputies from wearing face masks while on the job—ignoring the advice of public health experts about the safety measures that everyone should take during the coronavirus pandemic as well as the rising Covid-19 death toll in his county and state.
<div id="7a571" class="rm-shortcode" data-rm-shortcode-id="aad9dcf60e7385e6553ff23ffc1ae75d"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1293527664389693447" data-partner="rebelmouse"><div style="margin:1em 0">Deaths hit a record in Florida yesterday. This guy's jail system is rife with COVID. And he's banned masks in his s… https://t.co/Cbp2wR32o1</div> — Michael McAuliff (@Michael McAuliff)<a href="https://twitter.com/mmcauliff/statuses/1293527664389693447">1597236002.0</a></blockquote></div>
<div id="79024" class="rm-shortcode" data-rm-shortcode-id="4ac086eab58b9713f2ad777c40938252"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1293578984148606977" data-partner="rebelmouse"><div style="margin:1em 0">This actively puts peoples' lives at risk. https://t.co/GKF0Xgjyex</div> — CAP Action (@CAP Action)<a href="https://twitter.com/CAPAction/statuses/1293578984148606977">1597248238.0</a></blockquote></div>
- Beaches Reopen Before Memorial Day, but Is It Safe to Go ... ›
- Crowds Gather Over Memorial Day Weekend Despite Pleas From ... ›