Читать книгу 100 Ways to Boost Your Energy - Theresa Cheung, Theresa Cheung - Страница 11

Almost all of your energy comes from glucose (sugar). Therefore, maintaining an even blood sugar level is essential to ensure your energy levels are healthy and your mood upbeat. The best way to control your blood sugar levels is to watch what you eat, in particular what carbohydrates you eat.

Carbohydrates are broken down into sugar, which gives your body energy. The speed at which this process occurs affects your mood, weight and energy, and your ability to cope with stress. Some carbohydrates raise your blood sugar levels quickly, while others take their time. Fast-releasing carbohydrates, such as sugar and white flour, send your blood sugar levels rocketing very quickly after eating them, so you get a burst of energy. Unfortunately this is soon followed by a rapid dip in sugar which means you feel tired and sleepy – that ‘energy trough’ – and you crave another fix all over again. Slow-releasing carbohydrates, on the other hand, such as wholegrains and vegetables, give you a steady release of sugar and energy, keeping your energy levels constant.

Eating food that is going to keep your blood sugar levels and your energy levels constant is therefore vital. The rate at which food releases glucose into your bloodstream can be measured on the glycaemic index (GI). If you haven’t got the time to work with the GI, a general rule is that the more natural and unprocessed a food is, the lower it is on the GI and the better it is for you. In a nutshell, the closer food is to its natural, unrefined state, the richer it is in nutrients and the greater its energy potential. A diet that is rich in fresh, natural wholegrains, fruits and vegetables, legumes, nuts and seeds, and low in red meat, sugar, white flour, refined and processed foods which have been stripped of their fibre, vitamin and mineral energy, fast foods and ready meals, will help you avoid the dips in energy and mood that come with fluctuating blood sugar levels.

For more advice on energy-boosting nutrients and foods, check out the tips on pages 84–5.