Tucking away a few summer ice-creams won’t just have a negative impact on your waistline –it can also weaken your bones, according to the Institute for Ageing Research in the US. When scientists tested the effect that consuming various dairy products had on subjects’ bone mineral density they found that cream had a negative impact. Other products fared better, with both milk and yogurt having a positive effect on bone health. If you really can’t go without a treat in the sun, make sure you offset the damage by hitting the gym. A study in a recent issue of Current Sports Medicine Reports concluded that regular resistance training can promote bone development with likely increases in bone mineral density of 1-3%.