Tamara Makar

IFBB Pro Athlete

About caffeine

Posted on August 27, 2016 by tamika

Caffeine was once classed as a banned substance but was removed from the World Anti-Doping Agency prohibited list in 2004. Caffeine is a stimulant and has pharmacological action on the body therefore is classed as a drug rather than a nutrient.
Caffeine is found in everyday drinks and foods, such as coffee, black tea, green tea, cola, herbs such as guarana, both dark and white chocolate and it is added to a number of energy drinks and sports drinks and gels.
Caffeine acts on the central nervous system, increasing alertness and concentration. These effects reduce the perception of fatigue and allow exercise to be maintained at a higher intensity for a longer period.
Large number of studies show that caffeine intake can enhance performance at doses of 1-3mg/kg. There appears to be little increase in performance above 3mg/kg. for a 70kg person, this would be 210mg = 2 cups of coffee or 2 cans of caffeinated energy drinks.
Performance benefits occur soon after consumption, so caffeine may be consumed just before exercise, spread throughout exercise or late in exercise as fatigue is beginning to occur.
Although caffeine is a diuretic, a daily intake of less than 300mg caffeine results in no larger urine output than water. Taking caffeine regularly builds up your caffeine tolerance so you experience smaller diuretic effects.
Caffeine consumption likely causes a short-term spike in blood pressure after consumption, with the spike being more pronounced in those who don’t normally ingest caffeine and in those with hypertension. However, the evidence concerning the long-term effects of caffeine and caffeinated beverages on blood pressure is mixed.
Caffeine may raise eye pressure, but only in those who have pre-existing eye conditions like glaucoma.
Coffee contains oily substances called diterpenes, and the 2 main types are cafestol and kahweol that increase the cholesterol levels. Coffee filters trap most of the cafestol and kahweol though, so instant or filter coffee don’t contain much of these, only boiled coffee.

How to train for weight loss

Posted on July 26, 2016 by tamika

In my previous article I outlined a few points for a diet plan for weight loss. As you probably have heard this phrase a million times by now: abs are made in the kitchen. About 80% of your weight loss efforts will come down to your diet.You can estimate how much energy you burn during exercise, but the rule of thumb is that the more intense the exercise, the more calories are burnt.

For eg for a 150 lb person (69 kg) 30 mins of:

walking at 3 miles/hr burns 150 kcal
walking at 4.5 miles/hr burns 233 kcal
martial arts burn 401 kcal.

More often than not you see people in the gym, plodding away on the treadmill, crosstrainer or bike at a speed that allows them to play on their phones or talk to their friends.
Just to compare the calories and how much it takes to burn them off:
A Krispy Kreme chocolate ice donut with Kreme filling is 360 Kcal. That equals to =

94 mins walking
41 mins jogging or
48 mins cycling

A double cheese burger at McDonald’s is 440 Kcal. That equals to =

115 mins walking
50 mins jogging or
59 mins cycling

And usually when people go to McDonald’s or Krispy Kreme they don’t just have 1 donut or 1 burger.
So my point is: with a balanced diet it’s easier to ‘keep in shape’ than doing a yo-yo diet.

If you want to maximise the exercise component in order to shed body fat, choose exercise modes that are physically demanding as they use more energy. So instead of walking on the treadmill at 3-4 mph for 45 mins, do a HIIT training for 20-25 mins. With this type of training – even though you’re out of your ‘fat burning zone’, but you deplete your muscle glycogen stores and your body will be forced to tap into the adipose tissue for fuel. We have an almost unlimited supply of energy in the form of stored fat. Marathon runners fatigue due to glycogen depletion, not fat.
You will also burn more fat post workout, during your recovery, if you engage in high intensity training.
And last but not least: strength train! Girls, boys, everyone. The more muscle you have the higher your metabolism is. Building muscle and strength is intense. Intense training depletes glycogen therefore more stored fat is used for energy. Makes sense, doesn’t it?

Answering some common questions 1.

Posted on July 19, 2016 by tamika

I have been receiving a few questions related to my previous posts and in general. I will answer them on here regularly, so keep them coming.

What are electrolytes:

Electrolytes are mineral salts dissolved in the body’s fluid. They include:

* sodium,
* chloride,
* potassium and
* magnesium,
and help to regulate the fluid balance between different body compartments (for example, the amount of fluid inside and outside a muscle cell), and the volume of fluid in the bloodstream.

The water movement is controlled by the concentration of electrolytes on either side of the cell membrane. For example, an increase in the concentration of sodium outside a cell will cause water to move to it from inside the cell. Similarly, a drop in sodium concentration will cause water to move from the outside to the inside of the cell. Potassium draws water across a membrane, so a high potassium concentration inside cells increases the cell’s water content.

What are glucose polymers and maltodextrins?
Between a sugar (1– 2 units) and a starch (several 100,000 units), although
closer to the former, are glucose polymers (maltodextrins). These are chains
of between 4 and 20 glucose molecules produced from boiling corn-starch
under controlled commercial conditions.
The advantage of using glucose polymers instead of glucose or sucrose in a
drink is that a higher concentration of carbohydrate can be achieved (usually
between 10 and 20 g/ 100 ml) at a lower osmolality.

What are multiple transportable carbohydrates?
This term refers to a mixture of carbohydrates (e.g. glucose and fructose;
maltodextrin and fructose) in sports drinks. These carbohydrates are
absorbed from the intestine by different transporters, and using a mixture
rather than a single type of carbohydrate in a sports drink overcomes the
usual limitation of gut uptake of carbohydrate.

I would like to bulk up, how can I do that?
As you probably know, putting on muscle (or shredding fat) lies in your diet/nutrition. If you’d like to put on muscle mass, first thing you need to do is to revise your protein intake. Do you know how much protein you take in? 100 gr of chicken breast contains 25-30 gr protein, 100 gr of white fish has about 24 gr, 100 gr of steak has about 25 gr of protein, 100 gr cottage cheese about 10 gr. Endurance athletes usually take about 1.2 – 1.7 gr protein/kg of bodyweight/day, and bodybuilders take a lot more than that to build muscle. Then you need to revise your carbohydrate intake as well. Carbohydrates/muscle glycogen is the primary energy source when training. If you don’t have enough muscle glycogen, your performance will suffer (less intensity, lighter weights = less muscle), and your body will use amino acids to convert to glycogen (less muscle building). The amount of carb you need to eat depends on a lot of factors: your insulin sensitivity and the rate of your metabolism. People with high metabolism can eat more carbs, and people with high insulin sensitivity (and low metabolism) have to watch their carb intake otherwise they will put on a lot of fat as well along with the muscle.

Keep the questions coming, I will reply to them regularly on here!
hello@tamaramakar.me

Different fuel sources of the body

Posted on July 14, 2016 by tamika

Our food choices supply the energy for our bodies to continue to function properly. These energy sources are: carbohydrate, protein and fats. The body can store these fuels in a form that allows immediate source of energy. Carbohydrates are readily broken down to glucose, the body’s main energy source. Glucose can be used immediately as fuel, or can be sent to the muscles and liver to be stored as glycogen. During exercise muscle glycogen is converted back into glucose. The liver converts its glycogen back into glucose, too, however it is released into the bloodstream to maintain your blood sugar levels. Blood glucose is also the main fuel for the brain when you rest as well as when you exercise. The body constantly uses and replenishes its glycogen stores.
The amount of energy the body can store is limited however. The body can store approximately 1800 – 2000 kcal worth of energy, enough to fuel about 90-120 min high intensity exercise. As we exercise, we gradually deplete our muscle glycogen stores, and blood glucose plays an increasingly important role in meeting the body’s energy demands. When the liver is also depleted of glycogen, you experience hypoglycaemia (low blood sugar) when your performance drops. You can avoid that by consuming carbohydrates during prolonged and high intensity exercise.
Fat is the body’s most concentrated energy source. During exercise stored fat in the body is broken down into fatty acids. These fatty acids are transported through blood into the muscles for fuel. This process is slower than the mobilization of carbohydrates for fuel. Fat is also stored within the muscles where it can be accessed easier during exercise. In order for fat to fuel exercise, sufficient oxygen must be simultaneously consumed.

As for protein, our bodies use protein to build, maintain and repair body tissues as well as synthesize important enzymes and hormones. Protein meets only 5 % of the body’s energy needs. In some situations, however, such as when we eat too few calories daily or not enough carbohydrate, as well as during latter stages of endurance exercise, when glycogen reserves are depleted, skeletal muscle is broken down and used as fuel to access certain amino acids that can be converted into glucose.

For bespoke training and nutrition plan contact me on hello@tamaramakar.me

Vitamins and minerals

Posted on May 8, 2016 by tamika

Vitamins and minerals you need for your body to function properly.

Generally you can get all your vitamins and minerals from your diet, but there are certain cases when you need to supplement:

If you are vegetarian,
Eat a diet that’s limited because of food allergies and intolerances,
Or if you have a disease or condition that doesn’t allow you to digest or absorb nutrients properly.

Otherwise whole foods are a lot better sources than supplements as whole foods also contain a variety of nutrients your body needs – not just one. They also contain fibre that is important for digestion and they also contain phytochemicals that may help protect you against cancer, heart disease, osteoporosis or diabetes.

Fat soluble vitamins:
Vitamin A / beta carotene
Helps with healthy vision, bone and tissue growth and reproduction. Vitamin A and thyroid are closely related. A deficiency in either can precipitate a deficiency of the other and ideally should be balanced. In too large amounts, however, vitamin A can suppress the thyroid and depress levels of other fat soluble vitamins – especially vitamin D.
Foods: liver, egg yolks, milk

Vitamin D / calciferol
Often called the sunshine vitamin because your skin produces it after being exposed to ultraviolet rays from the sun. It helps your body absorb calcium that is responsible for the normal development and maintenance of healthy teeth and bones.
To get vitamin D you need either sunlight or supplementation.

Vitamin E / tocopherol
It is an antioxidant that protects red blood cells and may play a role in immune function, DNA repair and other metabolic functions. It is also called the ‘anti-sterility’ vitamin as it opposes estrogen.

Water soluble vitamins
Vitamin C / ascorbic acid
It’s an antioxidant that maintains healthy tissue and helps the body absorb iron. Also plays a role in wound healing, reducing stress and making one less susceptible to food allergies.
Foods: orange juice, ripe fruits

Vitamin B3 / niacin
It is one of the 8 B complex vitamins that helps your body convert food to energy. It also helps with blood circulation and improved blood cholesterol levels.

Vitamin B6 / pyridoxine
It is needed to help your body use protein, form red blood cells and maintain brain function. It facilitates amino acid utilisation, aids in calcium metabolism, supports the liver and helps regulate the facilitation and use of glycogen.
Foods: liver, egg yolk, milk

Vitamin B9 / folate / folic acid
It is important in red blood cell formation and for healthy cell growth and function. Very important during pregnancy for the developing fetus.

Vitamin B12
It has an essential role in red blood cell formation, cell metabolism and nerve function.

About minerals in the next post.