FUEL YOUR BODY
How to best fuel your body
If you’re looking to make a change and get healthier, exercise is an important step in the right direction. But for overall health, and for weight maintenance or weight loss, what you eat is much more important than how or how often you work out. Experts often put the impact of food on health at 80 percent, with exercise at 20 percent. So you’ll give yourself a huge boost towards your health goals if you pay attention to what you eat, as well as how you exercise. Here are the basics:
We need all three macronutrients – carbohydrate, protein and fat – for optimum health.
Carbohydrates are the preferred fuel for most cells in your body. Your main energy source, carbs are important for fueling your body and brain, protecting your muscles and feeding the bacteria in your gut.
Carbohydrate-rich foods include starchy vegetables (potatoes, sweet potato, taro); breads; pasta; rice and other grains and legumes and dairy. Healthier carbohydrates are in whole, unprocessed versions of these foods: vegetables and fruit, whole grains rather than white, processed ones.
Proteins are important “building blocks” for your body. Proteins are in every one of your cells, where they’re used to build and repair tissues; to make enzymes and
hormones, and to build muscle, bone, cartilage, skin and blood.
Protein-rich foods include meat, chicken and fish; tofu; eggs; dairy products, nuts, beans and other legumes. Healthier protein foods are the above foods in their most whole, natural forms.
Fats are also necessary for every cell in your body. They help absorb some vitamins (vitamins A, D, E and K) and help regulate hormones. Fats provide energy and build energy reserves, and protect and insulate your organs.
Fats are found in meat, fish, chicken and dairy; in oils; spreads; nuts and seeds.
Healthier fats are olive, avocado and seed oils, nuts, seeds and some dairy.
We also need some micronutrients from our food. The World Health Organization calls micronutrients “magic wands that enable your body to produce enzymes, hormones and other substances essential for proper growth and development.”
Here are some of the important ones:
- Iron: helps transport oxygen throughout your body. If you don’t have enough, you are likely to have lowered immunity and can become anemic. Iron is found in: red meat (the best source), chicken and fish; grains, vegetables and legumes; nuts and eggs also contain some.
- Vitamin A: is important for vision, your immune system, skin and growth in children. Vitamin A is found in: liver, oily fish, milk, egg yolk and cheese.
- Iodine: is necessary to make thyroid hormones, which control your body’s metabolism and are responsible for bone and brain development during pregnancy and infancy. Iodine is found in: fish and seafood; seaweed (e.g. nori and kelp); small quantities in dairy foods, vegetables and meat; fortified foods such as salt and bread in some countries.
- Vitamin C: is essential for keeping gums, teeth and bones healthy; helping wounds heal; helping your body resist infection; helping your body absorb iron and forming collagen to build bones and blood vessels.Vitamin C is found in: colorful fruits and vegetables.
- Calcium: is essential to build and maintain bones; enables your blood to clot and muscles to contract and helps regulate blood pressure. Calcium is found in: dairy (the best source) especially milk, cheese and yoghurt. It can also be found in fortified non-dairy milks; sesame seeds, nuts, prawns, sardines and dark green vegetables.
What are the Basics of a Good Diet?
To get the essential nutrients and micronutrients, you need to eat a wide variety of food. The composition of a healthy diet can vary; different people need different combinations of foods and in different amounts.
Around the world, there are groups of people who stay healthy and live the longest. Known as the Blue Zones, people in these communities eat very varied diets. But there are some common factors, which are reinforced by scientific evidence. These factors are:
- An emphasis on plant foods – eating “mostly plants”, whether we include animal products or not – is clearly associated with good health
- An emphasis on whole, unprocessed foods – limiting refined carbohydrates, added sugars and processed foods – is important for good health.
Is There an Ideal Ratio of Carbohydrates, Protein and Fat?
We’re all different, and your needs for different nutrients can really vary. A good basic guide, though, is to consider the “ideal plate” model for every meal. That means:
- Half a plate of colorful, non-starchy vegetables and/or fruit;
- A quarter of a plate of carbohydrate food;
- A quarter of a plate of protein food.
This model can apply to simple meals as well as mixed meals like pasta or stir-fried dishes. People’s ages, activity levels and some health conditions can affect whether you need more or less of a particular nutrient. Seek expert advice from a nutritionist or dietitian if you’re not sure what’s right for you.
How often should I Eat?
The traditional “three meals a day” model is a pattern of eating that fits in with many people’s lifestyles. And breakfast eating is associated with positive health outcomes, including weight management. The evidence suggests it doesn’t really matter when we eat, as long as we get the nutrition we need from the meals and snacks we have.
How Should I eat if I’m Exercising?
Whether you’re working out, playing sport or going for a run, food can make a difference to how much energy you have, and how well you recover from your workout. Remember though, it’s the food you eat most of the time – your basic, healthy, everyday diet – that’s the most important, not the food you eat before or after a workout.
How Should I Eat Before and After Exercise?
If you’re working out first thing in the morning, you may be better off not eating; your body can only use food it’s already digested. After your morning workout, make sure you get a meal containing carbs and protein within two hours.
If you’re working out during the day or the evening, make sure you’ve had a meal with carbs and protein in it three to four hours before your workout; or a snack containing protein and carbs an hour or two before your workout. After your workout, make sure you have a meal within two hours.
Try to avoid “rewarding” yourself with extra food or drink after a workout; you could easily undo all your good work with a poorly-chosen snack.
What about Water?
Hydration is really important for keeping you well during the day, whether you are exercising or not. You lose water naturally through breathing and sweat; when you exercise this can happen faster. Make sure you stay hydrated with water as your main drink; keep an eye on your urine color to tell you how you’re doing: pale is good.
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