Salt was used long before recorded history began. One of the earliest known writings, the Chinese Png-tzao-kan-mu, mentioned more than 40 types of salt.
This work was written over 4700 years ago. Even older settlements have been found around the world with various devices such as pottery used to evaporate water to leave the salt behind. It is speculated by some that major civilizations flourished in arid regions at the edge of vast deserts due to the physiological need for salt.
Salt, or sodium chloride, is a chemical compound. Salt occurs naturally in many areas of the world. Salt crystals are cubic in form - if you view salt through a magnifying glass, you will see small "squares" or cubes.
Salt is an essential nutrient - your body requires both sodium and chloride, and cannot manufacture these elements on its own. This is why there is a human gustatory receptor (taste bud) specifically for salt, forming one of the basic components of "taste". Salt is an electrolyte and has a slight charge. Salt preserves food by making it difficult for microorganisms to live - the salt draws water from the cells of microorganisms and dehydrates them.
In the body, salt helps to regulate blood volume and pressure. The relationship between salt and blood pressure was known as long as 4,000 years ago, when the Chinese emperor Huang Ti wrote of the connection between salt and a "hardened pulse." Many studies have shown that increasing or decreasing salt intake for salt-sensitive individuals can have a direct impact on blood pressure.
Within the body, salt serves as part of the ion pump. Just as salt formed a hostile environment for microorganisms by dehydrating them, salt controls water balance in the human body. The sodium/potassium pump is a prime example of how electrolytes are critical to health (sodium and potassium are both electrolytes). Two potassium molecules are pulled into a cell, and three sodium molecules are pumped out. This is an endless cycle, with the net result that cells carry a slightly negative electrical charge.
For many years, controversy has existed with respect to the optimal amounts of salt in the diet. Unfortunately, many studies focused on the salt content of foods without taking into account other electrolytes. Biologically and physiologically, sodium intake alone does not regulate the sodium/potassium pump - potassium intake is important as well! More important than the amount of sodium in the diet is the ratio of sodium to potassium. While food labels are required to report sodium content, they are not required to report potassium content, which makes analyzing potassium intake extremely difficult.
Recent research suggests that this ratio is critical. While many studies have focused on high sodium content in the diet, it appears that problems with hypertension may be related more to an inappropriate ratio of sodium to potassium. Processed foods are extremely high in sodium. The major sources of potassium are fruits and vegetables. In recent years, the typical American diet has increased in the amount of processed foods and drastically decreased in the amount of whole, unprocessed foods such as fruit and vegetables. This means that sodium intake is potentially much higher than potassium intake.
When monitoring sodium in the diet, it is important to consider two factors. The first factor already discussed is the ratio of sodium to potassium. In order to balance this ratio, it is important to eat whole, unprocessed foods and not to add excessive salt to meals. This will lower the amount of sodium in the diet. One should also increase the amount of fruit and vegetables consumed in order to increase potassium in the diet. The exact ratio is unknown, but research suggests that a 1:1 ratio is probably a good target. The typical American diet is more than a 5:1 ratio in favor of salt!
The second factor to consider is fluctuation of intake. Salt sensitivity is not sensitivity to salt in general. It is sensitivity to a drastic change of salt intake. If a person is taking 5 grams of sodium consistently, then suddenly goes on a low sodium diet, problems can occur with a radical shift in blood pressure. Similarly, someone on a "low sodium" diet who suddenly increases sodium intake may experience similar problems. This is why many people who eat healthy throughout the week and then treat themselves to a "splurge" meal sometimes feel nauseous and can even experience elevated heart rate and blood pressure: it is the body's reaction to the sudden increase in salt intake.
The sodium/potassium pump affects fluid balance. The body monitors the amount of salt and potassium in the bloodstream, as the body has no mechanism for storing electrolytes. Sodium and potassium are typically filtered in the kidney. When a shortage of either exists, the body secretes hormones that drastically reduce excretion of electrolytes and fluids. This is why cutting out sodium too soon before a body building competition can actually cause the competitor to retain water - the body is reacting to the lowered intake by preserving fluids and electrolytes.
To summarize, the skinny on salt is as follows:
The lesson here is one of moderation. Salt is not the enemy, and by no means should it be eliminated from the diet. On the other hand, everyone should be aware of the role that sodium plays in a balanced nutrition program, to make sure that excessive salt is not being consumed. Balance salt intake with potassium intake. The preferred source of any vitamin, mineral, or other nutrient is always natural, unprocessed foods.
Jeremy Likness is an International Health Coach and motivational speaker. After losing 65 pounds of fat, he discovered his true vision to coach thousands around the world to better health. A Certified Fitness Trainer and Specialist in Performance Nutrition, Jeremy is the author of the internationally-selling e-Book, lose fat, not faith and the companion lose fat, not faith. Jeremy has been published in major online publications including Tom Venuto's Fitness Renaissance and Bodybuilding.com. Jeremy's approach is unique because he focuses on fitness from the inside out. Visit Jeremy online at lose fat, not faith.
cleaning service near Bannockburn ..Many people avoid avocados thinking them to be fattening, but... Read More
If you do not take time to stand back at... Read More
Since Dr Basant Puri, a consultant psychiatrist and senior lecturer... Read More
Here is a continuation of the light and darkness metaphor:... Read More
Carbohydrates have gotten a lot of bad press in the... Read More
Today we're shifting our focus from wealth to health. First... Read More
Glucosamine is readily produced in the human body and is... Read More
The old clich? that you are what you eat is... Read More
Following these simple nutrition guidelines will allow you to lose... Read More
Most digestive disorders develop because of the bodys inability to... Read More
Are Your Cells Talking To Each Other?Communication! It permeates our... Read More
Fiber is the part of the plant that is resistant... Read More
Did you know the average American gains 5-7 pounds every... Read More
Information on potassiumWhen you read about potassium and senate document... Read More
One of the most common questions I am asked is... Read More
First of all you have to have a bucket. You... Read More
Do you want more energy? How about more of the... Read More
The Omega Zone Diet and specialists' opinion"Omega RX Zone -... Read More
Cholesterol. What images come to mind when you see this... Read More
It is ironic how something as obvious as nutrition has... Read More
Sprouts not only taste good, but they are also a... Read More
A frequent misunderstanding about macrobiotics is that it is a... Read More
Cholesterol has been around for thousands of years. It's a... Read More
The topic of nutrition is one that is always present... Read More
If you're suffering from constipation, you are no doubt looking... Read More
pet-friendly home cleaners Mundelein ..Are you worried yet about your health? Are you anxious... Read More
First some terminology.Fructose ... a five carbon sugar that occurs... Read More
The story of creation begins with water. Water is an... Read More
Question from Jack:A question from Jack, one of the subscribers... Read More
High blood pressure (hypertension) is a dangerous condition that can... Read More
Whether you're concerned about cancer, cardiovascular disease, diabetes, or simply... Read More
Cholesterol finds its way into our bodies in two main... Read More
The acai (ah-sigh-ee) berry has been around for thousands of... Read More
You've no doubt heard the saying, "You are what you... Read More
DIETARY SOURCES OF GLUTATHIONE: Glutathione (GSH) is an antioxidant and... Read More
Most of us eat at restaurants for a variety of... Read More
Water is a vitally important component of any valuable and... Read More
I had finally come to a place in my life... Read More
(ARA) - By now you probably think you've heard all... Read More
Dr. Arthur Agatston, the cardiologist who developed South Beach Diet... Read More
The confusion about eating healthy and dieting will now be... Read More
Protein must be a part of a healthy diet for... Read More
The typical American diet already provides plenty of protein and... Read More
Creating Your Target is easy.What I use to help create... Read More
Please feel free to comment, so that the article may... Read More
The makers of Bumble Bee Tuna generated some buzz today... Read More
What is health? Everyone wants this thing called health, and... Read More
You can start today - right now, even - on... Read More
Meal replacements have been part of the diet landscape for... Read More
Imagine you're a cell.Inside your body runs the machinery that... Read More
Nutrition |