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FOR THE LOVE OF FOOD: LaCroix slapped with lawsuit, Roundup linked to bee deaths, and low-carb studies are bunk

by | Oct 5, 2018

Welcome to Friday’s For The Love of Food, Summer Tomato’s weekly link roundup.

This week LaCroix slapped with lawsuit, Roundup linked to bee deaths, and low-carb studies are bunk.

Next week’s Mindful Meal Challenge will start again on Monday. Sign up now to join us!

Too busy to read them all? Try this awesome free speed reading app to read at 300+ wpm. So neat!

I also share links on Twitter @summertomato and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you.

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FOR THE LOVE OF FOOD: Low-carb is a bust, no edge to human longevity, and writing to improve body image

by | Jun 29, 2018

Welcome to Friday’s For The Love of Food, Summer Tomato’s weekly link roundup.

This week low-carb is a bust, no edge to human longevity, and writing to improve body image.

Next week’s Mindful Meal Challenge will start again on Monday. Sign up now to join us!

Too busy to read them all? Try this awesome free speed reading app to read at 300+ wpm. So neat!

I also share links on Twitter @summertomato and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you.

Read the rest of this story »

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FOR THE LOVE OF FOOD: Michael Pollan talks shrooms, fish more toxic than ever, and perfect poached eggs

by | May 11, 2018

Welcome to Friday’s For The Love of Food, Summer Tomato’s weekly link roundup.

This week Michael Pollan talks shrooms, fish more toxic than ever, and perfect poached eggs.

Next week’s Mindful Meal Challenge will start again on Monday. Sign up now to join us!

Too busy to read them all? Try this awesome free speed reading app to read at 300+ wpm. So neat!

I also share links on Twitter @summertomato and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you.

Read the rest of this story »

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For the Love of Food

by | Sep 6, 2014
For The Love of Food

For The Love of Food

Welcome to Friday’s (err…. Saturday’s) For The Love of Food, Summer Tomato’s weekly link roundup.

Sorry for the delay, I’m still traveling and had to read through two weeks of articles. On the plus side there’s GREAT stuff in here and it’s the weekend.

This week new low-carb BS, a life-changing essay about mammoths (really), and how to change your food preferences.

Want to see all my favorite links? (There’s lots more). Be sure to follow me on on Delicious. I also share links on Twitter @summertomato,  Google+ and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you. (Yes, I took that picture of the pepper heart myself.)
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10 Tasty Carbs That Won’t Make You Fat

by | Mar 20, 2013

Photo by Denna Jones

We all know the story. Eating carbohydrates causes a spike in blood sugar, which results in a surge of insulin. Insulin shuttles all that extra sugar into your fat cells and you become obese. Over time, your poor helpless organs become resistant to insulin and you develop type 2 diabetes, heart disease and high blood pressure, thereby shortening your life by 7 years.

All of that is true.

The story is more complicated, however, because all carbs are not created equal.

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For The Love Of Food

by | Jul 27, 2012

For The Love of Food

Welcome to Friday’s For The Love of Food, Summer Tomato’s weekly link roundup.

I’m back! Sorry I haven’t posted any link love in the past couple weeks, I travelled to British Columbia and then Hawaii for some much needed relaxation and quiet time to get some work done. The finish line is finally in sight for the big project I’ve been working on. More details soon.

This week sitting may be as bad as smoking, health journalists fail again, and a simple tip to boost willpower.

Want to see all my favorite links? Be sure to follow me on on Delicious. I also share links on Twitter @summertomato,  Google+ and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you. (And yes, I took that pepper heart pic myself).

Links of the week

What inspired you this month?

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For The Love Of Food

by | Jun 29, 2012

For The Love of Food

Welcome to Friday’s For The Love of Food, Summer Tomato’s weekly link roundup.

This week, the final coffin nail for low-fat diets, how to get kids to eat healthier and the truth about food expiration dates.

Want to see all my favorite links? Be sure to follow me on on Delicious. I also share links on Twitter @summertomato,  Google+ and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you. (And yes, I took that pepper heart pic myself).

Links of the week

What inspired you this week?

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For The Love Of Food

by | Jun 22, 2012

For The Love of Food

Welcome to Friday’s For The Love of Food, Summer Tomato’s weekly link roundup.

Sorry this is a bit late today, I’m on the road and neither my flight nor my hotel last night had functional internet?! Starbucks, of all places, saved the day.

This week a new perspective on salt, new information on GMO foods and a brilliant strategy for getting drugs out of our meat.

Want to see all my favorite links? Be sure to follow me on on Delicious. I also share links on Twitter @summertomato,  Google+ and the Summer Tomato Facebook page. I’m very active on all these sites and would love to connect with you. (And yes, I took that pepper heart pic myself).

Links of the week

What inspired you this week?

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Can You Live Longer By Cutting Calories?

by | Mar 30, 2011

Photo by Werwin15

Photo by Werwin15

The science of aging is among the most dynamic and provocative in modern biology. Over the past two decades we have seen a virtual explosion in research investigating the molecular and behavioral systems that control the aging process. But the more researchers uncover about the science of aging, the more questions emerge.

Dietary restriction has long been considered the most potent regulator of aging. Restricting food intake by any means induces a series of metabolic changes in organisms from yeast to primates that serve to extend life. Studies are currently underway to investigate the ability of dietary restriction to extend life in humans.

Several biological changes are known to occur upon the onset of dietary restriction including a decline in reproductive ability, increased stress resistance and a slowdown of some metabolic processes.

Insulin signaling was among the first molecular pathways to be identified in the regulation of aging, and offered a direct tie between diet and the aging process.  In 1998 UCSF scientist Cynthia Kenyon showed that removing an insulin receptor gene (daf-2) in worms could double their lifespan. Her lab later showed that removing another insulin signaling gene (daf-16) could extend life even longer. I spoke to Kenyon about the relationship between diet and aging for this article.

Blocking insulin signaling in these worms did not just prevent the worms from dying and allow them to age longer. Instead the aging process actually slows so that older worms continue to behave like young worms. Also, as these experiments were repeated in different animals, it was shown that lowering insulin signaling also helps protect animals from stress and diseases such as cancer and heart disease.

Insulin is released as a direct response to glucose in the blood. This means that any time you eat a meal with carbohydrates, you are increasing your insulin signaling and likely accelerating aging. But this does not mean that you will live forever if you stop eating carbohydrates.

Interestingly, protein metabolism also contributes to accelerated aging, but through a different mechanism. Even more intriguing is that restricting protein increases lifespan to a greater extent than restricting sugar.

So is it simply calories that promote aging?

Probably not. For one thing, the effect of a calorie from protein is greater than a calorie from carbohydrate, making it unlikely that a calorie is the basic unit of impact. Second, there is evidence that calories are not required to accelerate aging.

Recent studies have shown that the mere act of smelling food can reduce lifespan. The mechanism for this effect is still unknown, but seems to be tied to respiration.

According to Kenyon it is clear that “sensory perception influences lifespan,” at least in worms and flies.

Thus it is likely that aging is controlled by the interaction of several pathways, including metabolism, respiration and stress. Importantly, however, lifespan seems to be dependent on a handful of specific pathways rather than global changes in cellular function or breakdown. The idea that aging is an inevitable function of time must be put aside given the evidence that it is controlled at a genetic and environmental level.

This makes sense when you think about it. Different organisms exhibit vastly different lifespans and rates of aging that are too great to be explained by some kind of universal cellular breakdown. A more parsimonious hypothesis is that organisms differ in specific genetic factors that, combined with environmental influences, regulate lifespan.

So how should we mortal humans react to these findings?

The genes linking diet and aging are highly conserved through evolution, indicating that there is a great chance human aging is sensitive to diet. Indeed, insulin-related genes have been found to be important in long-lived human populations. This suggests that the pathways discovered in worms and other organisms have similar functions in humans.

What is not clear is how much influence diet has on lifespan and to what extent we are able to manipulate it. It is already known that abnormal insulin activity in humans is linked to higher disease rates, especially “diseases of civilization” such as heart disease, hypertension, type 2 diabetes and cancer. And these diseases are clearly associated with diets rich in processed foods, especially refined carbohydrates.

The effect of protein consumption on lifespan in humans has yet to be investigated. Envisioning an experiment that would test the influence of smelling food on human aging is difficult to even imagine.

Although direct evidence is not available, there is good reason to suspect that a diet with low glycemic load may extend human lifespan. In November 2009, Kenyon’s lab reported that adding glucose to a worm’s normal diet shortens lifespan, but has no effect on the long-lived worms that lack insulin signaling genes daf-2 and daf-16. This discovery prompted Kenyon herself to adopt a low-carbohydrate diet.

Despite this there is still not sufficient evidence to recommend a calorie restricted diet for humans to extend life, largely because optimal nutrition levels for a given individual are unknown. However, most people would benefit vastly by eliminating processed foods and refined carbohydrates from their diets as much as possible.

Focusing on fresh, whole foods, enjoying an occasional glass of wine, avoiding smoking and getting regular exercise can add 14 years to the life of an average person. Maintain a healthy weight as well and your outlook gets even better.

Would you change your diet to be healthier and live longer?

Originally published February 3, 2010.

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For The Love of Food

by | Mar 12, 2010
For The Love of Food

For The Love of Food

Texas & Tea

Before I list off my favorite food and health articles of the week, I have a few announcements to make.

First, I’m leaving today for Austin, TX for the South By Southwest conference. If you’re going to be out there feel free to email or tweet me, I’d love to meet you. While I’m gone we’ll have a farmers market update from a good friend of mine in Portland, OR. I hope you enjoy it!

Also, I’m thrilled to announce that Samovar Tea Lounge is offering a special 20% discount for Summer Tomato readers on all online purchases from now until March 31. If you are familiar with Samovar, you know how awesome this is. If you don’t know about Samovar but love tea or are looking to explore it further, this is a great opportunity to indulge a little. They also have some great gift sets if you’re looking to get your Mother’s Day shopping out of the way early.

Discount is applied at checkout with coupon code: summertea

Links of the week

Enjoy and have a lovely weekend.

I read many more wonderful articles than I post here each week. If you’d like to see more or just don’t want to wait until Friday, be sure to follow me on Twitter (@summertomato) or the Summer Tomato Facebook fan page. For complete reading lists join me on the social bookmarking sites StumbleUpon and Delicious. I’m very active on all these sites and would love to connect with you there. (Note: If you want a follow back on Twitter introduce yourself with an @ message).

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