Science. Explain why iron sulphide is a compound and not just a mixture of the two elements iron and sulphur. Explain why iron sulphide has different properties to a mixture of iron and sulphur and also describe and explain tests that can distinguish between iron sulphide and a mixture of iron and sulphur.
General information. Dietitians are the only qualified health professionals that assess, diagnose and treat dietary and nutritional problems at an individual and wider public-health level. They work with both healthy and sick people.
The credential RD (registered dietitian) is a nationally-recognized, legally protected, professional title and it can only be used by those who are authorized by the CDR. An RD must have a minimum of a bachelor's degree in dietetics, nutrition or nutrition sciences.owever, there are certain professionals who are educated and trained to help you navigate the world of food and nutrition. A Registered Dietitian. People are often confused about the difference between a nutritionist and a dietitian, but it is not accurate to use these terms interchangeably.