Home > Diet and nutrition > Nutrition basics Nutrition basics All sections in Diet and Nutrition » Beverages » Healthy Diets » Healthy foods » Nutrition Basics » The Immune System » Vitamins, Minerals and Supplements » Weight loss » Diet and Nutrition News » Food Safety Electrolytes and our ‘water balance’ Electrolytes are vitally important to our health: when the amount of water in our bodies changes, it can cause levels of electrolytes to become too high or too low. Check Glycaemic index tool » Count Calorie counter » Quiz Ready for weight loss? » Ask DietDoc » Portion sizes: getting it right What’s SA’s most sugary drink? How to benefit from negative-energy foods Some foods have such a low energy content that you can eat large quantities of them without risking weight gain. Here's how to use these foods to your advantage. Mediterranean or carb-free: which diet is best for your brain? The number of people living with dementia is increasing at an alarming rate. Could our dietary choices help prevent our brain cells from deteriorating? Am I eating too much fat? Are you consuming too much fat in your diet? Take this quiz to learn if you are at risk for being overweight, developing heart disease, diabetes and certain cancers? Drinking too much water can be dangerous There is serious danger faced by athletes if they drink too much water or too many sports drinks, according to a new study. The fructose controversy Some say high intake of fructose is to blame for obesity, cardio vascular disease and metabolic syndrome while others say is a sugar like any other. DietDoc investigates. Chicken farmers to pay price for antibiotic-free McNuggets McDonald's decision to phase out human antibiotics from its US chicken supply will add to costs that are likely to be borne largely by poultry companies. “ Latest comment on Health24 Deon Louw says... And the minister wants NHI to work, maybe in 50 years. Is there a hand-washing crisis in SA state hospitals? ” Eating too much? Blame your genes Recent research reveals that our genes not only affect the type of foods we choose to eat, but also how much, and how often. Why the world is losing interest in McDonald's A popular choice for a quick meal during your lunch-hour, McDonald's has always been popular. Things are changing, however. Why South Africans are addicted to fried chicken DietDoc investigates how fried chicken is contributing to making South Africans 'the fattest population in sub-Saharan Africa'. load more articles advertisement From our sponsors Taking charge of your health Man, take care of your health! Live healthier Sleep peacefully » Heavy snoring and apnoea linked to earlier mental decline Do you suffer from insomnia or poor sleep? Is your cat affecting your sleep? 5 types of nightmares Ever dreamed of being trapped in an elevator? Or of being chased by a killer? Or of trying to escape a torrent of hot, volcanic lava? Get the lowdown on nightmares here... Winter Wellness » Boost winter health Happy feet in winter Don’t become a winter blimp Tips to stay fit and healthy in winter When it's cold it's easy to pick up the coughs and sniffles, and it's even easier to indulge in comfort foods. Don't !