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.
Dietitians and nutritionists are both food and nutrition experts. They've studied how diet and dietary supplements affect your health. Both are considered to be healthcare professionals, but the two titles shouldn't be used interchangeably. Dietitians.