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Fewer meals may prevent Type 2 diabetes, obesity – University of Georgia

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When intermittent fasting became all the rage among Hollywood celebrities, skeptics balked at the idea of skipping meals. But new research from the University of Georgia suggests the celebs might not have been that far off.

The review found that a specific type of restricted eating may reduce the chances of developing Type 2 diabetes and improve your overall health. Known as time-restricted eating, this type of fasting means having regular but fewer meals, cutting out late-night snacks and not eating for 12 to 14 hours (often overnight).

After a comprehensive review of published, peer-reviewed studies, the researchers found a connection between number of meals and obesity and Type 2 diabetes.

Krzysztof Czaja

“What we’ve been taught for many decades is that we should eat three meals a day plus snacking in between,” said Krzysztof Czaja, an associate professor of biomedical sciences in UGA’s College of Veterinary Medicine. “Unfortunately, this appears to be one of the causes of obesity.”

The three meals and snacks style of eating prevents insulin levels from going down during the day, and, with the amount of calories and sugars Americans consume on average, that can overload the body’s insulin receptors. That leads to insulin resistance and often Type 2 diabetes.

“That’s why it’s so hard to lose body fat,” Czaja said. “We are not giving our bodies a chance to use it. Having fewer meals a day will allow these fat deposits to be used as an energy source rather than the sugar we keep consuming.”

A hand is shown with a fork eating a plate of chicken, rice and cooked peppers.

Time-restricted eating means having regular but fewer meals, cutting out late-night snacks and not eating for 12 to 14 hours. But the key is having healthy, balanced meals like the one shown here. (Photo by Andrew Davis Tucker/UGA)

Modern eating approach disrupts body’s biological clock

The researchers found that time-restricted eating allows the body to relax and lower insulin and glucose levels, which in turn can improve insulin resistance, brain health and glycemic control. It can also reduce calorie intake by around 550 calories per day without the stress of calorie counting.

Previous studies have shown disruptions to sleep and meal schedules can change both the type and amount of bacteria and other microorganisms in the digestive tract. But fasting may positively alter the gut microbiome, potentially staving off inflammation and a variety of metabolic disorders.

Additionally, the review suggests time-restricted eating can help regulate hormones responsible for appetite regulation and energy levels.

Regular meal schedules, eating breakfast and decreasing meals and snacks can help guard against obesity and Type 2 diabetes, according to the publication. And not all breakfasts are created equal. Aim for healthy fats and protein, like eggs, and avoid the sugar-filled breakfast cereals and pastries.

Although time-restricted eating appeared to improve health, the researchers found that other types of restricted eating, such as fasting for days on end, provided few benefits.

An omelette with half a grapefruit and a raspberry smoothie are shown sitting on a table.

Not all breakfasts are created equal, according to a recent review from UGA researchers. Aim for healthy fats and protein, like eggs, and avoid the sugar-filled breakfast cereals and pastries to maintain a healthy weight. (Photo by Andrew Davis Tucker/UGA)

Regular but fewer meals can stave off obesity, metabolic disorders

 More than four in 10 Americans are clinically obese, meaning their weight is higher than what is considered a healthy range for their height. Almost 10% are severely obese, according to the Centers for Disease Control and Prevention.

Obesity may lead to a variety of health conditions, including Type 2 diabetes, heart disease and even some cancers.

“Obesity is an epidemic right now, especially in the United States,” Czaja said. “It is a preventable disease. When we started looking at the research, we found that ancient humans didn’t eat every day. That means our body evolved not needing food every day.”

The modern approach of three meals plus snacks became popular decades ago, and it’s a hard pattern to break.

“But our gut-brain signaling is not designed for this type of eating,” Czaja said.

Definitely avoid late-night eating.” —Krzysztof Czaja, College of Veterinary Medicine

The researchers caution that eating is not a one size fits all situation. Smaller, less active people need fewer calories on average than taller athletes, for example. So for some, one meal of nutrient-rich food might be another while others may need more.

But one thing was very clear from the literature they reviewed: Fewer meals of high-quality food is a good guideline for individuals at risk of developing Type 2 diabetes and obesity.

“Also definitely avoid late-night eating,” Czaja said. “Our midnight snacks spike insulin, so instead of us going into a resting state when we sleep, our GI is working on digestion. That’s why we wake up in the morning tired—because we don’t get enough resting sleep.”

Published in Nutrients, the study was co-authored by Carlee Harris, an undergraduate biology major in UGA’s Franklin College of Arts and Sciences.

 

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Women in states with bans are getting abortions at similar rates as under Roe, report says

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Women living in states with abortion bans obtained the procedure in the second half of 2023 at about the same rate as before the U.S. Supreme Court overturned Roe v. Wade, according to a report released Tuesday.

Women did so by traveling out of state or by having prescription abortion pills mailed to them, according to the #WeCount report from the Society of Family Planning, which advocates for abortion access. They increasingly used telehealth, the report found, as medical providers in states with laws intended to protection them from prosecution in other states used online appointments to prescribe abortion pills.

“The abortion bans are not eliminating the need for abortion,” said Ushma Upadhyay, a University of California, San Francisco public health social scientist and a co-chair of the #WeCount survey. “People are jumping over these hurdles because they have to.”

Abortion patterns have shifted

The #WeCount report began surveying abortion providers across the country monthly just before Roe was overturned, creating a snapshot of abortion trends. In some states, a portion of the data is estimated. The effort makes data public with less than a six-month lag, giving a picture of trends far faster than the U.S. Centers for Disease Control and Prevention, whose most recent annual report covers abortion in 2021.

The report has chronicled quick shifts since the Supreme Court’s Dobbs v. Jackson Women’s Health Organization ruling that ended the national right to abortion and opened the door to enforcement of state bans.

The number of abortions in states with bans at all stages of pregnancy fell to near zero. It also plummeted in states where bans kick in around six weeks of pregnancy, which is before many women know they’re pregnant.

But the nationwide total has been about the same or above the level from before the ruling. The study estimates 99,000 abortions occurred each month in the first half of 2024, up from the 81,000 monthly from April through December 2022 and 88,000 in 2023.

One reason is telehealth, which got a boost when some Democratic-controlled states last year began implementing laws to protect prescribers. In April 2022, about 1 in 25 abortions were from pills prescribed via telehealth, the report found. In June 2024, it was 1 in 5.

The newest report is the first time #WeCount has broken down state-by-state numbers for abortion pill prescriptions. About half the telehealth abortion pill prescriptions now go to patients in states with abortion bans or restrictions on telehealth abortion prescriptions.

In the second half of last year, the pills were sent to about 2,800 women each month in Texas, more than 1,500 in Mississippi and nearly 800 in Missouri, for instance.

Travel is still the main means of access for women in states with bans

Data from another group, the Guttmacher Institute, shows that women in states with bans still rely mostly on travel to get abortions.

By combining results of the two surveys and comparing them with Guttmacher’s counts of in-person abortions from 2020, #WeCount found women in states with bans throughout pregnancy were getting abortions in similar numbers as they were in 2020. The numbers do not account for pills obtained from outside the medical system in the earlier period, when those prescriptions most often came from abroad. They also do not tally people who received pills but did not use them.

West Virginia women, for example, obtained nearly 220 abortions monthly in the second half of 2023, mostly by traveling — more than in 2020, when they received about 140 a month. For Louisiana residents, the monthly abortion numbers were about the same, with just under 700 from July through December 2023, mostly through shield laws, and 635 in 2020. However, Oklahoma residents obtained fewer abortions in 2023, with the monthly number falling to under 470 from about 690 in 2020.

Telehealth providers emerged quickly

One of the major providers of the telehealth pills is the Massachusetts Abortion Access Project. Cofounder Angel Foster said the group prescribed to about 500 patients a month, mostly in states with bans, from its September 2023 launch through last month.

The group charged $250 per person while allowing people to pay less if they couldn’t afford that. Starting this month, with the help of grant funding that pays operating costs, it’s trying a different approach: Setting the price at $5 but letting patients know they’d appreciate more for those who can pay it. Foster said the group is on track to provide 1,500 to 2,000 abortions monthly with the new model.

Foster called the Supreme Court’s 2020 decision “a human rights and social justice catastrophe” while also saying that “there’s an irony in what’s happened in the post-Dobbs landscape.”

“In some places abortion care is more accessible and affordable than it was,” she said.

There have no major legal challenges of shield laws so far, but abortion opponents have tried to get one of the main pills removed from the market. Earlier this year, the U.S. Supreme Court unanimously preserved access to the drug, mifepristone, while finding that a group of anti-abortion doctors and organizations did not have the legal right to challenge the 2000 federal approval of the drug.

This month, three states asked a judge for permission to file a lawsuit aimed at rolling back federal decisions that allowed easier access to the pill — including through telehealth.

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How many smoke-related deaths from wildfires are linked to climate change every year?

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Climate change may be contributing to thousands more wildfire smoke-related deaths every year than in previous decades, a new study suggests — results a Canadian co-author says underline the urgency of reducing planet-warming emissions.

The international study published Monday is one of the most rigorous yet in determining just how much climate change can be linked to wildfire smoke deaths around the world, said Sian Kou-Giesbrecht, an assistant professor at Dalhousie University.

“What stands out to me is that this proportion is increasing just so much. I think that it really kind of attests to just how much we need to take targeted action to reducing greenhouse-gas emissions,” she said in an interview.

The study estimates, using mathematical modeling, that about 12,566 annual wildfire smoke-related deaths in the 2010s were linked to climate change, up from about 669 in the 1960s, when far less carbon dioxide was concentrated in the atmosphere.

Translated to a proportion of wildfire smoke mortality overall, the study estimates about 13 per cent of estimated excessdeaths in the 2010s were linked to climate change, compared to about 1.2 per cent in the 1960s.

“Adapting to the critical health impacts of fires is required,” read the study, published in the peer-reviewed journal Nature Climate Change.

While wildfires are a natural part of the boreal forest ecosystem, a growing number of studies have documented how climate change, driven by the burning of fossil fuels, is making them larger and more intense — and contributing more to air pollution.

The same research group is behind another study published in the same journal Monday that suggests climate change increased the global area burned by wildfire by about 16 per cent from 2003 to 2019.

Those climate-fuelled fires then churn out more fine particle pollution, known as PM2.5, that’s tiny enough to get deep into the lungs — and in the long run can have serious health effects.

The study that estimated the scale of those effects is based on modeling, not historical data about reported deaths from air pollution.

Researchers used established public-health metrics for when pollution is thought to contribute to mortality, then figured out the extent to which wildfire smoke may have played a role in that overall exposure to arrive at the estimates.

Meanwhile, Health Canada estimates that between 2013 and 2018, up to 240 Canadians died every year due to short-term exposure to wildfire air pollution.

Kou-Giesbrecht said Monday’s study did not find that climate change had a major influence on the number of smoke-related deaths from Canada’s boreal wildfires.

She suggested that’s likely due to the country’s relatively small population size, and how tricky it is to model forest fires in the region, given its unique mix of shrubs and peat.

But she also noted that a stretch of devastating Canadian wildfire seasons over the past several years was not captured in the study, and she expects future research could find a bigger increase in deaths and public-health problems linked to climate change.

The most affected regions in the study were South America, Australia and Europe.

Kou-Giesbrecht said the more studies that uncover the link between climate change and disasters as “tangible” as wildfires, the more the case for “drastic climate action” will be bolstered.

“I think that the more and more evidence that we have to support the role of climate change in shaping the past 100 years, and knowing that it will continue to shape the next 100 years, is really important,” she said.

“And I find that personally interesting, albeit scary.”

The study used three highly complex models to estimate the relationship between climate change, land use and fire.

The models, which each contain thousands upon thousands of equations, compare what wildfires look like in the current climate to what they may have looked like in pre-industrial times, before humans started to burn vast amounts of fossil fuels.

The researchers used the models to calculate gas and aerosol emissions from wildfires between 1960 and 2019, and then make estimates about annual smoke-related deaths.

The type of methodology used by Monday’s studies, known as attribution science, is considered one of the fastest-growing fields of climate science. It is bolstered in part by major strides in computing power.

This report by The Canadian Press was first published Oct. 21, 2024.

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Some Ontario docs now offering RSV shot to infants with Quebec rollout set for Nov.

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Some Ontario doctors have started offering a free shot that can protect babies from respiratory syncytial virus while Quebec will begin its immunization program next month.

The new shot called Nirsevimab gives babies antibodies that provide passive immunity to RSV, a major cause of serious lower respiratory tract infections for infants and seniors, which can cause bronchiolitis or pneumonia.

Ontario’s ministry of health says the shot is already available at some doctor’s offices in Ontario with the province’s remaining supply set to arrive by the end of the month.

Quebec will begin administering the shots on Nov. 4 to babies born in hospitals and delivery centers.

Parents in Quebec with babies under six months or those who are older but more vulnerable to infection can also book immunization appointments online.

The injection will be available in Nunavut and Yukon this fall and winter, though administration start dates have not yet been announced.

This report by The Canadian Press was first published Oct. 21, 2024.

-With files from Nicole Ireland

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

The Canadian Press. All rights reserved.

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