Nutrients - Everyday Needs and Their Resources

15 Feb 2020

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 A healthy and balanced diet is the key to a healthy body.

Nutrients are molecules in food that all organisms need to make energy, grow, develop, and reproduce. Nutrients are digested and then broken down into basic parts to be used by the organism. they’re vital for disease prevention, and good health. a balanced diet should include a variety of nutrients.


Their daily needs and resources


Knowing the nutrients is very important to staying healthy. Below are the nutrients and their sources.

 1. Nutrients - Iron

Iron is a part of red blood cells and helps in transportation of oxygen in the body. In case of iron deficiency, or anemia, the body’s efficiency to transport oxygen decreases. As a result you may feel lethargic and fatigued.
Daily requirement :- The recommended amount of iron is 18g/day.
Sources:- Rich in iron are green leafy vegetables, nuts, beans and pulses, whole grain,pomegranate etc.

2. Nutrients - Calcium

It is a vital nutrient for the body as it helps in providing strength to your bones. Strong bones are less prone to fracture and diseases like osteoporosis. Calcium also plays a role in nerve transmission, maintenance of healthy blood vessels and muscle contraction.
Daily requirement :- Intake of calcium should be 1g/day.
Sources:- Rich sources of Calcium are dairy products like milk, curd, paneer and green leafy vegetables like spinach, broccoli, etc.

3. Nutrients - Fiber

Dietary fiber helps in proper bowel movement and provides bulk to your stool which decreases the chances of constipation. It also helps in regulating blood sugar levels in the body as the presence of fiber in food slows down the absorption of the sugar. Soluble dietary fiber helps in controlling the levels of cholesterol by reducing the levels of “bad” fat from the body.
Daily requirement :- Intake of fiber should be 40g/day.
Sources :- Include fruits, vegetable, whole grains and legumes in your daily diet.

4. Nutrients - Magnesium

Many studies have shown that magnesium with calcium helps in improving the bone mineral density in the body. Magnesium deficiency can affect calcium metabolism and a fluctuation in the levels of hormones that regulate calcium can result in osteoporosis. It is associated with lowering the risk of coronary heart disease and helps in regulating high blood pressure. It also plays a major role in controlling diabetes, migraines, insomnia, and depression.
Daily requirement :- Intake of magnesium should be 410mg/day.
Sources:- Include nuts, whole grains, wheat germ, fish, and green leafy vegetables in your diet.

5. Nutrients - Potassium

It is one of the electrolytes and even helps in managing electrolyte levels in the body. A diet high in potassium levels is associated with improved blood pressure control. It also contributes to improved kidney function, reduction in blood clotting, and more efficient opening of blood vessels.
Daily requirement :- Intake of potassium should be 4.7g/day.
Sources:- Rich sources of potassium are lima beans, potatoes, yams, bananas and soybeans.

6. Nutrients - Protein

Protein is the building block of tissues. It is required to repair the daily wear and tear of the cells in the body. Protein is an important part of the diet as it helps in building muscles.
Daily requirement :- Intake of protein should be 46-56g/day.
Sources:-Rich sources of protein are milk, curd, paneer, eggs, lean cuts of chicken, soy and beans etc.

7. Nutrients - Vitamin A

Vitamin A plays a major role in maintaining vision, cell growth and promotes healthy tissue and skin. It also participates in physiological activities related to the immune system, inflammatory system, maintenance of epithelial and mucosal tissues, creation of red blood cells, and bone development.
Daily requirement :- Intake of vitamin A should be 600-900 µg/day.
Sources:- Rich sources of vitamin A are sweet potato, carrot, spinach, Green leafy vegetables, etc.

8. Nutrients - Vitamin C

Vitamin C is also a type of antioxidant that protects your body against free radical damage. Apart from this, vitamin C supports collagen production in joints. Collagen is a shock absorbing gel like substance which fills up the space between two bones in a joint.
Daily requirement :- Intake of vitamin C should be 75-90mg/day.
Sources:- Rich sources of vitamin C are citrus fruits, nuts, vegetables, etc.

9. Nutrients Vitamin D

Vitamin D increases the absorption of calcium in the body and helps in building strong bones. It helps in regulating insulin activity and blood sugar balance in the body and prevents muscle weakness.
Daily requirement :- Intake of vitamin D should be 600 IU/day.
Sources:- Rich sources of vitamin D are milk, egg, and fatty fishes like salmon, tuna and some variety of mushrooms. To get your daily dose of vitamin D morning sunlight is the best source. There are hormones beneath the skin which produce Vitamin D with help from sunlight.

10. Nutrients - Vitamin E

Vitamin E is a type of antioxidant which protects your body cells from free radical damage. Free radicals lead to breakdown of healthy cells and may contribute to heart disease and cancer. It also helps strengthening immunity.
Daily requirement :-Intake of vitamin E should be 15mg/day.
Sources :- To get daily dose of this vitamin include nuts, vegetable oil, eggs and green leafy vegetables in daily diet.

How to calculate body fat percentage?

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Body fat percentage


Body fat percentage is the weight of a person's fat divided by their total weight.
Total body fat includes essential and storage fat.

Essential fat: A person needs essential fat to survive. It plays a role in a wide range of bodily functions. For men, it is healthy to have 2 to 4 percent of their body composition as essential fat. For women, the figure is 10 to 13 percent, according to the Council on Exercise (ACE).

Storage fat: Fatty tissue protects the internal organs in the chest and abdomen, and the body can use it if necessary for energy.

Apart from the approximate guidelines for men and women, the ideal total fat percentage can depend on a person's body type or activity level.

ACE recommend the following percentages:

Activity levelMale body typeFemale body type
Athletes6–13%14–20%
Fit non-athletes14–17%21–24%
Acceptable18–25%25–31%
Overweight26–37%32–41%
Obesity38% or more42% or more

A high proportion of body fat can indicate a greater risk of:

  • Diabetes
  • Heart disease
  • High blood pressure
  • Stroke

Calculating body fat percentage may be a good way to measure a person's fitness level because it reflects the person's body composition. BMI, in contrast, does not distinguish between fat and muscle mass.

 How to measure body fat

Calipers


Calipers measure body fat. The result can give an indication of whether a person is likely to have certain health risks.

The most common ways of measuring body fat percentage is to use a skinfold measurement, which uses special calipers to pinch the skin.

The health professional will measure tissue on the thigh, abdomen, chest (for men) or upper arm (for women). The techniques provide an accurate reading within around 3.5 percent, according to ACE.

Other techniques include


Underwater weighing

Underwater weighing also called Hydrostatic weighing and is based on principle of Archimede which tells us that a buoyant force acts on a body immersed in a liquid equal to the weight of the volume of liquid displaced by the part of the body immersed in this liquid. Using this principle allow you to measure body fat percentage, because the density of fat mass is around 0.9 kilograms per litre, when the fat free mass density such as muscle and bone is 1.1 kilograms per litre.

Air displacement plethysmography

Whole-body air displacement plethysmography or ADP. In this case, used a special device called Bod Pod. The principle of operation of this device is somehow similar to underwater weighing, only in this case air is used instead of water. This device measures the volume of the body based on the physical relationship between pressure and volume.

Bioelectrical impedance analysis

The essence of this method is that two electrodes are placed on the human body, usually on the person’s hand and foot. Then a very weak electric current is passed through the body and the device specifically reads and analyzes the signal attenuation. The amount of resistance in this case helps to determine the percentage of fat in the body, since adipose, muscle and skeletal tissue have different levels of resistance to electricity. Muscles have good conductivity because they contain about 70% of water, while fat practically does not contain water, and therefore is a poor conductor.

Ultrasound

Ultrasound measurement of subcutaneous fat thickness is one of the most accurate and at the same time expensive methods. For measurements, special devices are used that are based on the use of tabular values of the speed of sound in body tissues and analysis of signals to determine the thickness of fat. By measuring the thickness of fat in various parts of the body, you can calculate the estimated percentage of fat in the body.


Body Fat estimate calculate using Waist-to-height ratio (WtHR)

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Waist-to-height ratio (WtHR)

Waist-to-height ratio (WtHR) is tool that might predict the risk of heart disease, diabetes, and overall mortality more effectively than BMI.

A person whose waist measurement is less than half their height has a lower risk of a number of life-threatening health complications.

Measure your waist-to-height ratio:


A person's height

A person's height should be at least twice their waist measurement for a healthy WtHR.

To calculate the WtHR, a person should divide their waist size by their height. If the answer is 0.5 or less, the chances are that they have a healthy weight.

A woman who is 5 feet and 4 inches tall (163 cm), should have a waist measurement below 32 inches (81 cm).

A man who is 6 feet or 183 centimeters (cm) tall, should have a waist measurement below 36 inches or 91 cm.

These measurements will give a WtHR of just under 0.5.

In a study published in 2014 in Plos One, researchers concluded that WtHR was a better predictor of mortality than BMI.

The authors also cited findings from another study — involving statistics for around 300,000 people from different ethnic groups — which concluded that WHtR is better than BMI at predicting heart attacks, strokes, diabetes, and hypertension.

This suggests that the WHtR could be a useful screening tool.


Measurements that take waist size into account can be good indicators of a person's health risks because fat that collects around the middle can be harmful for the heart, kidneys, and liver.

The Centers for Disease Control and Prevention (CDC) note that a man with a waist size of 40 inches or above, or a woman with a waist size of 35 inches or above has a higher risk than other people of:

    type 2 diabetes
    high blood pressure
    coronary artery disease

This does not, however, take a person's height or hip size into consideration.

Calculate weight & size using Waist-to-hip ratio (WHR) method?

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Waist-to-hip ratio (WHR)

A person's waist-to-hip measurement compares their waist size with that of their hips.

Research has shown that people who have more body fat around their middle are more likely to develop cardiovascular disease (CVD) and diabetes. The higher the waist measurement in proportion to the hips, the greater the risk.

For this reason, the waist-to-hip ratio (WHR) is a useful tool for calculating whether a person has a healthy weight and size.

Measure your waist-to-hip ratio:


1. Measure around the waist in the narrowest part, usually just above the belly button.

2. Divide this measurement by the measurement around your hip at its widest part.

If a person's waist is 28 inches and their hips are 36 inches, they will divide 28 by 36. This will give them 0.77.

What does it mean?


How WHR affects the risk of cardiovascular disease (CVD) is different for men and women, because they tend to have different body shapes.

Evidence suggests that WHR can impact the risk of CVD as follows:

In males

    Below 0.9: The risk of cardiovascular health problems is low.
    From 0.9 to 0.99: The risk is moderate.
    At 1.0 or over: The risk is high.

In females

    Below 0.8: The risk is low.
    From 0.8 to 0.89: The risk is moderate.
    At 0.9 or above: The risk is high.

However, these figures can vary, depending on the source and the population to which they apply.

WHR may be a better predictor of heart attacks and other health risks than BMI, which does not take fat distribution into consideration.

A study of health records for 1,349 people in 11 countries, published in 2013, showed that those with a higher WHR also have a greater risk of medical and surgical complications relating to colorectal surgery.

However, WHR does not accurately measure a person's total body fat percentage, or their muscle-to-fat ratio.
way no. 1. Body mass index (BMI) - Click Here

way no. 2. Waist-to-hip ratio (WHR) - Click Here

way no. 3. Waist-to-height ratio - Click Here

How to calculate weight using the Body Mass Index (BMI) method

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Body mass index (BMI)


Body mass index (BMI) is a common tool for deciding whether a person has an appropriate body weight. It measures a person's weight in relation to their height.


According to the National Institutes of Health (NIH):
  •     A BMI of less than 18.5 means that a person is underweight.
  •     A BMI of between 18.5 and 24.9 is ideal.
  •     A BMI of between 25 and 29.9 is overweight.
  •     A BMI over 30 indicates obesity.

Body mass index calculator

To calculate your BMI, you can use BMI calculators or review charts below.

1. Metric BMI Calculator


2. Imperial BMI Calculator

Height:
Weight:


The following weight and height chart uses BMI tables from the National Institute of Health to determine how much a person's weight should be for their height.

HeightWeight

NormalOverweightObesitySevere obesity
4ft 10"
(58")
91 to 115 lbs.119 to 138 lbs.143 to 186 lbs.191 to 258 lbs.
4ft 11"
(59")
94 to 119 lbs.124 to 143 lbs.148 to 193 lbs.198 to 267 lbs.
5ft
(60")
97 to 123 lbs.128 to 148 lbs.153 to 199 lbs.204 to 276 lbs.
5ft 1"
(61")
100 to 127 lbs.132 to 153 lbs.158 to 206 lbs.211 to 285 lbs.
5ft 2"
(62")
104 to 131 lbs.136 to 158 lbs.164 to 213 lbs.218 to 295 lbs.
5ft 3"
(63")
107 to 135 lbs.141 to 163 lbs.169 to 220 lbs.225 to 304 lbs.
5ft 4"
(64")
110 to 140 lbs.145 to 169 lbs.174 to 227 lbs.232 to 314 lbs.
5ft 5"
(65")
114 to 144 lbs.150 to 174 lbs.180 to 234 lbs.240 to 324 lbs.
5ft 6"
(66")
118 to 148 lbs.155 to 179 lbs.186 to 241 lbs.247 to 334 lbs.
5ft 7"
(67")
121 to 153 lbs.159 to 185 lbs.191 to 249 lbs.255 to 344 lbs.
5ft 8"
(68")
125 to 158 lbs.164 to 190 lbs.197 to 256 lbs.262 to 354 lbs.
5ft 9"
(69")
128 to 162 lbs.169 to 196 lbs.203 to 263 lbs.270 to 365 lbs.
5ft 10"
(70")
132 to 167 lbs.174 to 202 lbs.209 to 271 lbs.278 to 376 lbs.
5ft 11"
(71")
136 to 172 lbs.179 to 208 lbs.215 to 279 lbs.286 to 386 lbs.
6ft
(72")
140 to 177 lbs.184 to 213 lbs.221 to 287 lbs.294 to 397 lbs.
6ft 1"
(73")
144 to 182 lbs.189 to 219 lbs.227 to 295 lbs.302 to 408 lbs.
6ft 2"
(74")
148 to 186 lbs.194 to 225 lbs.233 to 303 lbs.311 to 420 lbs.
6ft 3"
(75")
152 to 192 lbs.200 to 232 lbs.240 to 311 lbs.319 to 431 lbs.
6ft 4"
(76")
156 to 197 lbs.205 to 238 lbs.246 to 320 lbs.328 to 443 lbs.
BMI19 to 2425 to 2930 to 3940 to 54

BMI is a very simple measurement. While it takes height into consideration, it does not account for factors such as:
  •     waist or hip measurements
  •     proportion or distribution of fat
  •     proportion of muscle mass
These, too, can have an impact on health.

High-performance athletes, for example, tend to be very fit and have little body fat. They can have a high BMI because they have more muscle mass, but this does not mean they are overweight.

BMI can also offer a rough idea of whether or not a person's weight is healthy, and it is useful for measuring trends in population studies.

However, it should not be the only measure for an individual to assess whether their weight is ideal or not.

way no. 2. Waist-to-hip ratio (WHR) - Click Here

How to lose weight? - is the most pressing health question

9 Feb 2020

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The Most effective Tips And Reasons

 How to lose weight is one of the most pressing health questions for many people
Sure, you can lose weight quickly. But it's best to lose weight slowly. And many experts say you can do that without going on a "diet."
You should lose weight for the following reasons

Main reason - Obesity is epidemic

How to lose weight? - is the most pressing health question

Health experts around the world now see obesity as an epidemic.
Every year, at least 2.8 million people die due complications related to excess weight.

People who are overweight or obese. Losing weight for them can reduce health risks, increase fitness, and delay the onset of diabetes. It can reduce pain and increase agitation in people with knee arthritis.

Healthy Diet - A combination of different foods in Diet

8 Feb 2020

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 If you want to live Healthy Life then you have to eat  Healthy diet containing high nutrients to maintain your good health.

Study shows that the body needs daily supplement of 40 different nutrients for good health. These nutrients are not available in one type of food. Eating a variety of nutrients rich foods, can supply all the vital nutrients needed for body metabolism. You should include whole grain products in your meals to provide the body with enough energy. Eating a variety of foods and consuming less salt, sugars and saturated and industrially-produced trans-fats, are essential for good health.

 A healthy diet comprises a combination of different foods. These include:


  •     Staples like cereals (wheat, barley, rye, maize or rice) or starchy tubers or roots (potato, yam, taro or cassava).
  •     Legumes (lentils and beans).
  •     Fruit and vegetables.
  •     Foods from animal sources (meat, fish, eggs and milk).