Showing posts with label amino-acids. Show all posts
Showing posts with label amino-acids. Show all posts

Saturday, 21 November 2015

How to eat more protein without meat

Whether you are a vegetarian or you are just trying to cut down on the amount of meat you eat, it is still important to eat enough protein.  It is definitely possible to eat an adequate amount of protein without eating any meat as protein is found in many foods.  Although it is very possible to get plenty of protein without meat, it is still important to make sure you are getting enough, and that you are getting it from the right sources.


What does protein do?

Protein is vital for our health.  It has many functions and is found in our muscles, connective tissue, organs and hemoglobin.  It is also the basic component of enzymes and hormones; it helps maintain and repair protein-containing tissues; and it provides energy.
Eating too little protein, which is uncommon in developed countries, can cause your body to take the protein it needs from your organs and tissues.  It can also lead to decreased body function, and even, death.
So, as you can see, it is very important to consume adequate protein.  Most healthy adults need about .8g/kg of protein per day.  To figure out how much you need, take you weight in pounds and divide it by 2.2 to obtain your weight in kg.  Then multiply that figure by .8 to figure out how much protein you need.  For example, if you weigh 150 pounds, you would need 55g/day. (150lbs/2.2=68.1kgx.8=54.5g protein)

What is protein?

Protein is made up of amino acids, which are called the “building blocks” of protein.  When you consume something that contains protein, it is broken down in the digestive system into amino acids, which are then absorbed by the body.
There are 20 amino acids, including 9 which are essential and 11 which are nonessential.  The nonessential amino acids can be produced from different components of the diet.  The essential amino acids either can’t be produced by the body, or the body can’t produce adequate amounts of them.  That means that we need to eat foods that contain all of the essential amino acids.

Where are essential amino acids found?

Amino acids can be found in most foods.  Foods that contain all 9 essential amino acids are called complete proteins.  Meat, poultry and fish are complete protein sources.  But, if you are trying to eat less meat, you can obtain complete proteins from other animal products, such as, dairy and eggs.
Soybeans and quinoa are the only plant sources that are considered a complete protein.  If you want to eat foods which are not complete proteins, you can eat those foods in combination with other foods to form a complete protein.
Foods are considered incomplete proteins because they don’t contain all 9 essential amino acids, but are still great sources of protein.  These would include legumes, other grains, nuts and seeds.  Some examples of combining incomplete proteins include rice and beans, bulgur wheat and dried beans, barley and dried beans, corn and peas, soybeans and seeds, peanuts, rice and dried beans, seeds and green peas.  These foods don’t necessarily have to be eaten at the same meal, but should be eaten at some point during the same day.

Which non-meat foods contain the most protein?

The amount of protein found in some common foods is shown below:
FoodAmountGrams of protein
Yogurt1 cup13
Milk1 cup8
Cheese1 oz8
Tofu½ cup14
Cooked soybeans½ cup10
Cooked split peas½ cup5
Cooked dried beans½ cup8
Nuts¼ cup9
Peanut butter1 Tbsp4
Whole wheat bread1 slice2
Brown rice½ cup2
Quinoa, cooked1 cup8

What can you do to eat more protein without meat?

The foods listed above are just some of the foods that contain a lot of protein.  You can easily find other foods high in protein just by reading the nutrition facts on the label.  There are many breakfast cereals that contain a lot of protein.  Also, oatmeal is usually fairly high in protein.
Or, if you choose not to eat cereal, you can have yogurt or granola. Greek yogurt is thicker and contains a greater amount of protein than regular yogurt.  Or, you can even make a smoothie with juice or milk, fruit and protein powder.
For your lunch and dinner entrees, instead of eating meat, consider having some baked or sautéed tofu.  You can mix it with vegetables, or even bake it with breadcrumbs like you would with meat.  There are so many meat substitutes available, too.  There are all different kinds of burgers, veggie dogs, veggie bacon, and even chicken less chicken nuggets.
So, if you still enjoy meat, but are just trying to cut down on the amount of meat you eat, it is very likely that you will be able to find a meatless version of it.  Many of these products are made out of soy and are processed, so if you want to eat more whole foods and avoid processed foods, there are still many different options.
You can have beans as your entrée, and if you eat it with rice, it will form a complete protein.  Or, you can enjoy a dish that consists of a high protein grain.  Quinoa can be made into many different recipes; it can even be made into a burger.  Even whole wheat pasta is very high in protein.
Nuts or seeds make a great snack and will also add some protein to your diet.  You can even get protein from your beverages. Milk contains adequate protein. Kefir is like a yogurt smoothie and is very high in protein.

It is not difficult to get enough protein without meat

As you can see, protein comes in many forms and you do not have to eat a diet that is high in meat, or even contains any meat, to meet your daily protein requirement.  Just make sure that if you aren’t eating the higher quality proteins, which are the complete proteins, that you are making a complete protein by combining foods, which will make it a complete protein.

Comment below, let me know what you think.

Source
References used in this article

Friday, 30 October 2015

Amino acids and their significance for fat burning

Amino acids, vitamins, minerals and trace elements play a significant role in weight loss.


Whether we gradually put on weight or stay slim generally depends on our hormones. And herein lays the key to weight loss: the systematic supplementation of certain amino acids allows us to stimulate the body to produce enough fat-burning hormones – in a natural manner and in harmony with the body's needs. 
One important fat-burning hormone is the growth hormone (somatotropin, STH). We produce this hormone while we sleep. It stimulates protein synthesis and boosts fat oxidation. Overweight patients generally have lower STH concentrations, which often hinders weight reduction. Unfortunately, the growth hormone is very expensive (approximately GBP 400–650 for a monthly ration) and must be injected under close and competent medical supervision. It is thus safer to simulate our bodies to secrete this hormone naturally. Certain amino acids have been shown to do this in many cases if sufficient quantities are taken on an empty stomach at night.

Amino acids capable of this are:

  • Arginine
  • Glutamine
  • Methionine
The synthesis of the growth hormone also requires vitamin B6, vitamin B12 and zinc.

Studies have shown that obese patients may have a carnitine deficiency.

In this case, carnitine substitution (food supplementation) is certainly worthwhile. Carnitine is a biocarrier (transport substance), which is synthesised in the liver – and its precursor in the kidneys – from the two essential amino acids lysine and methionine. It acts as a carrier molecule that transports long-chain fatty acids through the inner mitochondrial membrane. Long-chain fatty acids can only pass through the membrane if they have been esterified with carnitine, whereas medium- and short-chain fatty acids can pass without this carrier (transport molecule)

Carnitine as a fat burner

Carnitine transports fatty acids more quickly and throws them into the metabolic furnace. This means that the body is burning fat instead of storing it. Owing to its fat-oxidising effect, carnitine is also used for weight reduction and is often referred to as a “fat burner”.
Carnitine is synthesised in five steps that also involve the essential co-factors vitamin B6, vitamin B12, niacin and folic acid. A deficiency in any of these substances may limit carnitine biosynthesis.
Professor Luppa from the University of Leipzig wrote about the fat-burning capabilities of l-carnitine in his essay from 2004, “in regards to the prevention of obesity, it can be said that current measures to improve the breakdown of fat are more effective than the propagated restrictions on fat intake in the diet. However, the precondition is the optimal functioning of the fat metabolism and its regulation. L-carnitine plays a decisive role as an essential co-factor in both cases. A deficiency in l-carnitine reduces the breakdown of fatty acids in the mitochondrial matrix due to its function as a carrier. L-carnitine is also important in regulating fat and carbohydrate metabolism for it is a substrate of the carnitine palmitoyl transferase (CPT).”
Furthermore, “restrictions in the availability of l-carnitine are not only recognisable in the adaptability of the lipid metabolism as the carbohydrate and protein metabolisms are also affected. As a consequence, reduced blood sugar levels and increased protein degradation can occur.”

There was clear evidence that carnitine can increase fat oxidation in certain cells of the body.

Furthermore, work by two scientists from Switzerland and the USA has now proved that the administration of carnitine can boost mobilization of fatty acids from the adipocytes (fat cells) and also increase oxidation of fatty acids in these cells.
Moreover, sufficient data has been obtained from seven animal models which all clearly prove that carnitine supplementation during a calorie-reduced diet can lead not only to a significant decrease in the body fat compared to a placebo, but also to a simultaneous increase in fat-free muscle mass.

Carnitine facilitates weight management

A 2013 clinical study has attracted a great deal of attention. It showed that dietary supplementation with 500mg L-carnitine per day, in combination with motivational training, already ensures significant weight loss in overweight individuals. Study participants were able to lose an average of 400g of body fat within four weeks, without changing their diets or level of exercise. Waist circumference measurements showed an average decrease of 1.3cm.

Glutamine counteracts fat storage

Glutamine can be converted to glucose in the kidneys without affecting the glucagon and insulin counts. Therefore, it also contributes to the energy supply while being able to bypass insulin-induced fat storage.
It counteracts the storage of dietary fats and thus helps regulate weight. One study showed that supplementation with glutamine in a high-fat diet resulted in a loss of body fat. Furthermore, glutamine can reduce cravings for sugar and alcohol.
The B-vitamins and zinc are also important for fat burning. Vitamin B is very helpful when trying to lose weight, as almost all of the B-vitamins stimulate the body’s ability to break down fat. Moreover, they are also a nutritional source for the nerves, a factor which should not be underestimated, especially by those who wish to lose weight. The B-vitamins riboflavin (B2), niacin (B3), pantothenic acid (B5), biotin (B7) and cobalamin (B12) are responsible for controlling the metabolism and stimulate the breakdown of body fats. They are particularly effective and fast in regards to fat burning. Vitamin B2 is important as it quickly converts proteins, carbohydrates and fats to energy. The trace element zinc has similar properties for it supports the body in processing fat and carbohydrates and it is indispensable for a functioning protein metabolism. Amino acids can therefore only fulfil their important tasks for the lipid metabolism with a sufficient supply of zinc.



Source
http://www.aminoacid-studies.com/areas-of-use/fat-burning.html

Sources

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2Merimee, T.J., Lillicrap, D.A. & Rabinowitz, D. (1965) Effect of arginine on serum-levels of human growth-hormone Lancet, Volume 2, issue 7414, (pp. 668-670)
3Welbourne, T.C. (1995) Increased plasma bicarbonate and growth hormone after an oral glutamine load,The American Journal Of Clinical Nutrition, Volume 61, issue 5, (pp. 1058-1061)
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5Evangeliou, A. & Vlassopoulos, D. (2003) Carnitine Metabolism and Deficit – When Supplementation is Necessary? Current Pharmaceutical Biotechnology (pp. 211-219)
6Müller, D.M., Seim, H., Kiess, W., Löster, H. & Richter, T. (2002) Effects of Oral l-Carnitine Supplementation on In Vivo Long-Chain Fatty Acid Oxidation in Healthy Adults, Metabolism, Vol. 51, issue 11, (pp. 1389-1391)
7Wutzke, K.D. & Lorenz, H. (2004) The Effect of l-Carnitine on Fat Oxidation, Protein Turnover, and Body Composition in Slightly Overweight Subjects, Metabolism, Vol. 53, issue 8, (pp. 1002-1006)
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9Odo, S., Tanabe, K. & Yamauchi, M. (2013) A Pilot Clinical Trial on L-Carnitine Supplementation in Combination with Motivation Training: Effects on Weight Management in Healthy Volunteers, Food and Nutrition, Volume 4, (pp. 222-231)
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