Does obesity run in families? It is widely accepted that children of obese parents are at higher risk of adult obesity. What amount should we add to our product and is there anything known about their bioavailability? Currently, little is known about the bioavailability of polyphenols in food. Therefore, making any health claims in this area should always be aired with a little caution. I've heard that free radicals cause damage in the body. What sort of damage do they cause? Free radicals can attack DNA molecules in the body and cause the changes in their building blocks, such as purine (adenine, guanine) and pyrimidine (cytosine, thymine) bases. How do you control roundworm infection? Encourage the natural immunological defences of the animal by high quality feed, exercise and access to pasture. Do I need to take any vitamin supplements when I am pregnant? Yes, you do. What is scanning tunnelling microscopy? Often shortened to STM, it is a technique used to extrapolate images of a surface on an atomic scale. What are the symptoms? Diarrhoea, dehydration and reduced food intake. Are students truly as angelic as the figures imply? The truth is that there are many major inaccuracies associated with questionnaires such as these. Will giving up smoking make me gain weight? Smoking affects your taste preferences and your diet tends to improve after you quit. Question Answer