Intermittent Fasting Could Be Part of a Healthy Lifestyle, Studies Show
Are you looking to change your eating habits in the New Year?
A new review of the evidence published in the New England Journal of Medicine Thursday suggests that intermittent fasting — the practice of limiting how much you eat during the day or week — can actually be a healthy way to eat.
"The state of the science on intermittent fasting has evolved to the point that it now can be considered as one approach, with exercise and healthy food, to improving and maintaining health as a lifestyle approach," senior author and Johns Hopkins Medicine neuroscientist Mark Mattson told HealthDay Reporter.
Mattson, who has studied the issue for 25 years and practiced it himself for 20, told the Johns Hopkins Medicine Newsroom that intermittent fasting usually takes two forms.
- "Daily time-restricted feeding," in which people only eat for a six-to-eight-hour window every day.
- "5:2 intermittent fasting," in which people limit themselves to two moderately-sized meals every week.
The diet probably works, Johns Hopkins explained, because it triggers a mechanism that evolved in humans to adapt to periods of scarcity, called "metabolic switching":
Such a switch occurs when cells use up their stores of rapidly accessible, sugar-based fuel, and begin converting fat into energy in a slower metabolic process.
Mattson says studies have shown that this switch improves blood sugar regulation, increases resistance to stress and suppresses inflammation for various periods of time. Because most Americans eat three meals plus snacks each day, they do not experience the switch, or the suggested benefits.
Mattson and his co-author Rafael de Cabo of the Translational Gerontology Branch of the National Institute on Aging Intramural Research Program looked at studies that suggested a variety of additional health benefits. They included:
- Cognitive Abilities: A study of 220 non-obese adults who ate a restricted calorie diet for two years had improved memory function.
- Heart Health: Four studies in humans and animals found that intermittent fasting lowered blood pressure, blood lipid levels and resting heart rate.
- Diabetes and Obesity: Two studies of 100 overweight women found that those who followed the 5:2 intermittent fasting diet lost the same amount of weight as those who simply limited calories, but also had healthier insulin sensitivity and lower belly fat than those on the lower-calorie diet.
The authors said more research needed to be done to see if the benefits of the diet would extend to all types of people, Newsweek reported. Most of the studies to date have focused on overweight young or middle-aged adults.
People who are interested in the diet should speak to their doctors first, Newsweek cautioned, but Mattson said the diet would likely benefit those who are overweight and either at risk for or suffer from heart disease, diabetes and inflammation.
Hannah Kittrell, a registered dietitian and manager of the Mount Sinai PhysioLab in New York City who was not involved with the article, also told HealthDay Reporter that the diet could be beneficial.
"If you're thinking of intermittent fasting as a fad diet, I think it's actually a pretty legitimate option," she said. "The reason for that is it's not completely cutting out any food groups. It's not telling you don't eat carbs, don't eat fat. It's just modulating when you're eating food."
So if you've spoken to your doctor and decided intermittent fasting is right for you, how do you get started?
"[T]ry starting intermittent fasting with a spouse, partner or friends at work," Mattson told Newsweek. "Just as with starting an exercise regimen it is easier to do with someone else than alone."
You should also be sure to drink plenty of water and, when you do eat, eat healthy foods like vegetables, fruits, nuts, fish and lean meats, he said.
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By Brett Wilkins
While some mainstream environmental organizations welcomed Tuesday's introduction of the CLEAN Future Act in the House of Representatives, progressive green groups warned that the bill falls far short of what's needed to meaningfully tackle the climate crisis—an existential threat they say calls for bolder action like the Green New Deal.
<div id="25965" class="rm-shortcode" data-rm-shortcode-id="6116a1c2b1b913ad51c3ea576f2e196c"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366827205427425289" data-partner="rebelmouse"><div style="margin:1em 0">BREAKING: Rep @FrankPallone just released his CLEAN Future Act — which he claims to be an ambitious bill to combat… https://t.co/M7nR0es196</div> — Friends of the Earth (Action) (@Friends of the Earth (Action))<a href="https://twitter.com/foe_us/statuses/1366827205427425289">1614711974.0</a></blockquote></div>
<div id="189f0" class="rm-shortcode" data-rm-shortcode-id="aa31bacec80d88b49730e8591de5d26d"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366863402912657416" data-partner="rebelmouse"><div style="margin:1em 0">The CLEAN Future Act "fails to grasp the fundamental truth of fighting climate change: We must stop extracting and… https://t.co/yREn6Qx9tn</div> — Food & Water Watch (@Food & Water Watch)<a href="https://twitter.com/foodandwater/statuses/1366863402912657416">1614720605.0</a></blockquote></div>
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EcoWatch Daily Newsletter
- Redwoods are the world's tallest trees.
- Now scientists have discovered they are even bigger than we thought.
- Using laser technology they map the 80-meter giants.
- Trees are a key plank in the fight against climate change.
They are among the largest trees in the world, descendants of forests where dinosaurs roamed.
Pixabay / Simi Luft<p><span>Until recently, measuring these trees meant scaling their 80 meter high trunks with a tape measure. Now, a team of scientists from University College London and the University of Maryland uses advanced laser scanning, to create 3D maps and calculate the total mass.</span></p><p>The results are striking: suggesting the trees <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">may be as much as 30% larger than earlier measurements suggested.</a> Part of that could be due to the additional trunks the Redwoods can grow as they age, <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">a process known as reiteration</a>.</p>
New 3D measurements of large redwood trees for biomass and structure. Nature / UCL<p>Measuring the trees more accurately is important because carbon capture will probably play a key role in the battle against climate change. Forest <a href="https://www.wri.org/blog/2020/09/carbon-sequestration-natural-forest-regrowth" target="_blank">growth could absorb billions of tons</a> of carbon dioxide from the atmosphere each year.</p><p>"The importance of big trees is widely-recognised in terms of carbon storage, demographics and impact on their surrounding ecosystems," the authors wrote<a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank"> in the journal Nature</a>. "Unfortunately the importance of big trees is in direct proportion to the difficulty of measuring them."</p><p>Redwoods are so long lived because of their ability to <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">cope with climate change, resist disease and even survive fire damage</a>, the scientists say. Almost a fifth of their volume may be bark, which helps protect them.</p>
Carbon Capture Champions<p><span>Earlier research by scientists at Humboldt University and the University of Washington found that </span><a href="https://www.sciencedirect.com/science/article/pii/S0378112716302584" target="_blank" rel="noopener noreferrer">Redwood forests store almost 2,600 tonnes of carbon per hectare</a><span>, their bark alone containing more carbon than any other neighboring species.</span></p><p>While the importance of trees in fighting climate change is widely accepted, not all species enjoy the same protection as California's coastal Redwoods. In 2019 the world lost the equivalent of <a href="https://www.worldwildlife.org/threats/deforestation-and-forest-degradation" target="_blank" rel="noopener noreferrer">30 soccer fields of forest cover every minute</a>, due to agricultural expansion, logging and fires, according to The Worldwide Fund for Nature (WWF).</p>
Pixabay<p>Although <a href="https://c402277.ssl.cf1.rackcdn.com/publications/1420/files/original/Deforestation_fronts_-_drivers_and_responses_in_a_changing_world_-_full_report_%281%29.pdf?1610810475" target="_blank" rel="noopener noreferrer">the rate of loss is reported to have slowed in recent years</a>, reforesting the world to help stem climate change is a massive task.</p><p><span>That's why the World Economic Forum launched the Trillion Trees Challenge (</span><a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a><span>) and is engaging organizations and individuals across the globe through its </span><a href="https://uplink.weforum.org/uplink/s/uplink-issue/a002o00000vOf09AAC/trillion-trees" target="_blank" rel="noopener noreferrer">Uplink innovation crowdsourcing platform</a><span> to support the project.</span></p><p>That's backed up by research led by ETH Zurich/Crowther Lab showing there's potential to restore tree coverage across 2.2 billion acres of degraded land.</p><p>"Forests are critical to the health of the planet," according to <a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a>. "They sequester carbon, regulate global temperatures and freshwater flows, recharge groundwater, anchor fertile soil and act as flood barriers."</p><p><em data-redactor-tag="em" data-verified="redactor">Reposted with permission from the </em><span><em data-redactor-tag="em" data-verified="redactor"><a href="https://www.weforum.org/agenda/2021/03/redwoods-store-more-co2-and-are-more-enormous-than-we-thought/" target="_blank">World Economic Forum</a>.</em></span></p>
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Kentucky is coping with historic flooding after a weekend of record-breaking rainfall, enduring water rescues, evacuations and emergency declarations.
<div id="0f31c" class="rm-shortcode" data-rm-shortcode-id="4290ab3e7ec4e142f8bce774bab39f03"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366307788155219969" data-partner="rebelmouse"><div style="margin:1em 0">Just got back from my office... downtown Beattyville Kentucky is not a pretty sight. @KySportsRadio… https://t.co/6nXwyMKtRb</div> — Tom Jones (@Tom Jones)<a href="https://twitter.com/8atticus/statuses/1366307788155219969">1614588136.0</a></blockquote></div>
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Spring is coming. And soon, tree swallows will start building nests. But as the climate changes, the birds are nesting earlier in the spring.
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