Tag Archives: salt

Remind me again, why is salt bad for you?

Shutterstock

Evangeline Mantzioris, University of South Australia

Despite most of us knowing we should cut down on salt, Australians consume on average almost twice the recommended daily maximum per day.

Salt has been used in food preservation for centuries, and idioms like “worth your weight in salt” indicate how valuable it was for preserving food to ensure survival. Salt draws moisture out of foods, which limits bacterial growth that would otherwise spoil food and cause gastrointestinal illnesses. Today, salt is still added as a preservative, but it also improves the taste of foods.

Salt is a chemical compound made of sodium and chloride, and this is the main form in which we consume it in our diet. Of these two elements, it’s the sodium we need to worry about.

So what does sodium do in our bodies?

The major concern of consuming too much sodium is the well-established link to the increased risk of high blood pressure (or hypertension). High blood pressure is in turn a risk factor for heart disease and stroke, a major cause of severe illness and death in Australia. High blood pressure is also a cause of kidney disease.

Most of the salt we consume is from processed foods. Shutterstock

The exact processes that lead to high blood pressure from eating large amounts of sodium are not fully understood. However, we do know it’s due to physiological changes that occur in the body to tightly control the body’s fluid and sodium levels. This involves changes in how the kidneys, heart, nervous system and fluid-regulating hormones respond to increasing sodium levels in our body.

Maintaining tight control on sodium levels is necessary because sodium affects the membranes of all the individual cells in your body. Healthy membranes allow for the movement of:

  • nutrients in and out of the cells
  • signals through the nervous system (for example, messages from the brain to other parts of your body).

Dietary salt is needed for these processes. However, most of us consume much, much more than we need.

When we eat too much salt, this increases sodium levels in the blood. The body responds by drawing more fluid into the blood to keep the sodium concentration at the right level. However, by increasing the fluid volume, the pressure against the blood vessel walls is increased, leading to high blood pressure.

High blood pressure makes the heart work harder, which can lead to disease of the heart and blood vessels, including heart attack and heart failure.

While there is some controversy around the effect of salt on blood pressure, most of the literature indicates there is a progressive association, which means the more sodium you consume, the more likely you are to die prematurely.

What to watch out for

Certain groups of people are more affected by high-salt diets than others. These people are referred to as “salt-sensitive”, and are more likely to get high blood pressure from salt consumption.

Those most at risk include older people, those who already have high blood pressure, people of African-American background, those who have chronic kidney disease, those with a history of pre-eclampsia (high blood pressure during pregnancy), and those who had a low birth weight.

Optimal blood pressure is 120/80. Shutterstock

It is important to be aware of your blood pressure, so next time you visit your doctor make sure you get it checked. Your blood pressure is given as two figures: highest (systolic) over lowest (diastolic). Systolic is the pressure in the artery as the heart contracts and pushes the blood through your body. The diastolic pressure in the artery is when the heart is relaxing and being filled with blood.

Optimal blood pressure is below 120/80. Blood pressure is considered high if the reading is over 140/90. If you have other risk factors for heart disease, diabetes or kidney disease, a lower target may be set by your doctor.

How to reduce salt intake

Reducing salt in your diet is a good strategy to reduce your blood pressure, and avoiding processed and ultra-processed foods, which is where about 75% of our daily salt intake comes from, is the first step.

Try to use less salt in your cooking, but home prepared meals are not the worst culprit. Shutterstock

Increasing your intake of fruit and vegetables to at least seven serves per day may also be effective in reducing your blood pressure, as they contain potassium, which helps our blood vessels relax.

Increasing physical activity, stopping smoking, maintaining a healthy weight and limiting your alcohol intake will also help to maintain a healthy blood pressure. Blood pressure reducing medications are also available if blood pressure can not be reduced initially by lifestyle changes.

Evangeline Mantzioris, Program Director of Nutrition and Food Sciences, University of South Australia

This article is republished from The Conversation under a Creative Commons license. Read the original article.


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‘Enough Is Enough’: Report Shows Big Oil’s Offshore Tax Loopholes Cost US at Least $86 Billion Per Year

“We continue to bankroll the very fossil fuel companies responsible for the climate crisis, then wonder why our planet is on fire.”

A new report released Wednesday identifies $86 billion worth of offshore tax loopholes that a dozen U.S.-based oil and gas companies exploit each year as part of a “tax bonanza,” a finding that comes as climate justice advocates push Congress to eliminate subsidies to the fossil fuel industry.

“Our government cannot continue to bankroll climate destruction,” Friends of the Earth tweeted Wednesday.

The report (pdf), compiled by Friends of the Earth, Oxfam America, and BailoutWatch, reveals the consequences of “two esoteric provisions in the tax code worth tens of billions of dollars to Big Oil’s multinational majors,” including ExxonMobil, Chevron, ConocoPhillips, and other polluters most responsible for the climate emergency.

As a result of the GOP’s 2017 tax law, corporations that drill overseas benefit from special treatment under the Global Intangible Low-Tax (GILTI) framework, which covers Foreign Oil and Gas Extraction Income (FOGEI).

The Treasury Department estimates that repealing the Trump-era exemption for FOGEI would raise $84.8 billion in revenue from just 12 companies that are currently eligible for the carveout, the report notes.

“It is unfortunate but not surprising that the handful of companies benefitting from these loopholes are lobbying to protect their special treatment.”
—Chrive Kuveke, BailoutWatch

Another corporate handout, the so-called dual capacity loophole, is “a longstanding gimmick” wherein fossil fuel giants “artificially inflat[e] their foreign tax bills” to evade U.S. taxes.

Although they are permitted to claim tax credits for taxes paid to foreign governments, U.S. companies are not allowed to do so for non-tax payments such as royalties. 

“In practice, however, the categories often are commingled—particularly when companies make a single combined payment including both taxes and fees,” the report explains. “A foreign country may even try to disguise non-tax payments as a tax, knowing that in many cases a multinational company may receive a foreign tax credit from its home country. Existing regulation gives dual capacity taxpayers vast latitude to assert what portions of their payments are taxes eligible to offset U.S. tax bills.” 

Eliminating the dual capacity loophole would raise at least an additional $1.4 billion, according to the Biden administration, while the Joint Committee on Taxation puts the figure somewhere between $5.6 billion and $13.1 billion. The report points out that “the estimates vary so widely in part because we have precious little visibility into Big Oil’s payments to governments—and that’s just how the companies want it.”

“As Democrats propose closing loopholes to help cover the cost of their $3.5 trillion reconciliation package,” the report states, “these obscure subsidies present a rare chance to act on climate, fund infrastructure, and promote tax fairness in a single stroke.”

While the House Ways and Means Committee’s markup of the Build Back Better Act includes a tax reform proposal that would reverse the FOGEI carveout and the dual capacity loophole, it would leave intact at least $35 billion in federal subsidies for domestic fossil fuel production—despite President Joe Biden’s call to phase out polluter giveaways over a decade.

House Democrats’ failure to stop showering Big Oil with public money—a move supported by a majority of people in the U.S. and many, though not all, Democratic lawmakers—has drawn progressives’ ire.

“The House bill made a decent start by targeting Big Oil’s international tax loopholes, but it went nowhere near far enough,” Lukas Ross, Climate and Energy Justice program manager at Friends of the Earth, said Wednesday in a statement.

Senate Majority Leader Chuck Schumer (D-N.Y.) “needs to lead on climate and ensure that all $121 billion in fossil fuel subsidies are repealed in the final package,” Ross added.

According to Daniel Mulé, policy lead for Oxfam’s Extractive Industries Tax and Transparency project, “U.S. Big Oil companies like Exxon and Chevron have fought tooth and nail to keep the payments they make to governments around the world a secret, while paying lip service to the global movement for payment transparency.”

“This secrecy,” said Mulé, “has a potential tax impact in the U.S. as well, as it makes it all the more difficult to discern if U.S. oil and gas companies are illegitimately inflating their foreign tax credits.”

The report draws attention to several legislative proposals that would do away with subsidies for domestic fossil fuel production as well as tax exemptions for foreign extraction, including:

The report was released the same day members of the Congressional Progressive Caucus urged House leaders to include a repeal of domestic fossil fuel subsidies in the Democrats’ Build Back Better Act.

“Instead of creating jobs,” the progressive lawmakers wrote, the subsidies “widen the profit margin of fossil fuel companies.”

The report emphasizes that fossil fuel champions—including the Exxon lobbyist who was caught on camera discussing how the company benefits from offshore tax loopholes and intends to further undermine climate action—are fighting hard to preserve billions of dollars in taxpayer-funded handouts.

“Big Oil isn’t going quietly,” said Chrive Kuveke, an analyst at BailoutWatch. “Since Biden became president, it is unfortunate but not surprising that the handful of companies benefitting from these loopholes are lobbying to protect their special treatment.”

Originally published on Common Dreams by KENNY STANCIL and republished under Creative Commons.

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