We all know that we should make sure that we get the right amount of vitamins, minerals and nutrients each day, but in reality with our busy lifestyles today this is easier said than done. Many people take a nutritional supplement, the difficulty is knowing if what we are taking actually has enough of what we need in it or that our body will actually absorb the vitamins etc correctly. With many pills and capsules, any benefits can be lost long before they get to the right parts of the body and in some cases your body may only absorb as little as 5% of the amount of the mineral or nutrient quoted on the bottle. When the UK government launched its Decarbonisation and energy efficiency roadmap 2050 project – working with the UK’s eight most energy intensive manufacturing industries, including glass – British Glass saw an opportunity to develop a new type of relationship with policy makers. Blood tests from a laboratory provide both outcomes of the actual tests along with tabular 'Reference" ranges, sometimes referred to as 'Normal" values. The latter is of an misnomer because values considered 'Normal" provide a normal collected from large scale tests. Normal just isn't necessarily 'Optimal." A second, very important factor in interpreting results emanates from understanding these ranges may vary somewhat from laboratory to laboratory. Therefore, in considering abnormal blood tests and hormones, or some other blood test, the two actual result and the actual range utilised by the laboratory have to be taken into account. The reference ranges found in this short article derive from Disease Management and Treatment except where noted.