Micronutrients are all the vitamins and minerals your
body needs to function well. From helping your muscles rebuild after tough
workouts to keeping your energy levels up, micronutrients play a central role
in your performance. If macronutrients power the machine, micronutrients oil
the wheels and cranks, keeping all your systems functioning smoothly. Athletes
such us runners tend to be restrictive about eating and can miss out on
valuable nutrients. Here is a run-down of some vital micronutrients that will
help staying strong and healthy during your training, so you can hit your peak
performance levels:
Iron is an important nutrient for endurance athletes yet
many athletes are iron deficient. Iron helps transport oxygen to all the cells
in your body, including your brain. If you don’t have enough iron in your diet,
you’ll feel tired, irritable and have difficulty focusing. You can get iron
from beef, spinach, clams, oysters, chicken liver, sardines canned in oil and
turkey.
Calcium as everyone knows, is important for strong bones and
many athletes don’t get enough calcium. Activity builds your bone strength but
if you don’t have enough calcium in your diet, your bones may get weaker when
you train and you’ll be more likely to get injured. You can get calcium by
eating cheese, yoghurt, milk, broccoli, watercress and kale.
Potassium helps keep you from cramping and getting dehydrated on
race by balancing the electrolyte and fluid levels in your body. You lose
potassium from sweating during workouts so need to replenish it. Potassium also
helps build muscles. You can get potassium from red meat, chicken, soy,
broccoli, peas, bananas, kiwi, citrus fruits and fish such as salmon, sardines,
cod and flounder.
Magnesium is used in adenosine triphosphate (ATP) production
for energy, muscular relaxation and bone remineralization. Low levels of
magnesium can contribute to the early onset of fatigue during exertion, muscle
cramps and nausea. Good sources of magnesium are wheat germ, nuts, rye,
soybeans and figs.
Selenium. Selenium is a free radical scavenger. It benefits an
athlete’s immune system and helps repair daily cellular damage. Sources of
selenium include Brazil nuts, beans, bran, garlic, mushrooms and seafood.
Sodium.. Athletes performing physical activity in warm
temperatures for 3 hours or more should ensure enough sodium intake through
fluid replacement (drinking) and snacks.
Zinc. This mineral aids in post-exertion tissue repair and
helps to convert foods into fuel. The best food sources are bran, oysters, lean
beef, egg yolk, fish, wheat germ and yeast.
VITAMIN
|
BENEFIT
|
SOURCES
|
Vitamin D
|
Bone growth &
mineralisation.
Enhances Calcium absorption.
Taking Vitamin D with Calcium
may help to prevent bone loss in athletes at risk of osteoporosis.
|
Sun exposure
|
Vitamin K
|
Important for normal blood
clotting.
|
Spinach, chestnut, tomato,
egg, kidney
|
Vitamin B6
|
Muscle strength and aerobic
power in the lactic acid and oxygen systems. Combined with B1 and B12, may
increase serotonin levels. This may improve fine motor skills that athletes
need for sports like pistol shooting and archery
|
Cereals, muesli, potatoes
bananas, beans, nuts, salmon
|
Vitamin C
|
Involved in Iron absorption.
Provides antioxidant activity.
Enhance immunity
Vitamin C after intense
exercise may decrease the incidence of upper respiratory tract infections
|
Strawberries, bell peppers, cantaloupe, kiwi, citrus
fruits and potatoes.
|
Vitamin E
|
Antioxidant that helps to
prevent free radicals from forming
During intense exercise.
Reduce exercise-induced
oxidative stress.
At high altitudes, may
improve exercise performance
|
Olive oil, almonds,
hazelnuts, sunflower seeds, salmon and wheat germ.
|
Beta Carotene/
other Carotenoids
|
Responsible for antioxidant
activity in all tissues, mainly the respiratory tract and skin. Helpful in
providing tissue integrity and healing wounds.
|
Orange, green and other
coloured fruits and vegetables
|
Kate Chremou, Nutritionist, Ms
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