Harvard researchers have identified the five foods that make you gain weight and five that help you lose weight. If you like yoghurt, the study has good news for you; if you're a "meat and potatoes" kind of eater, not so much.
Potato chips and potatoes were the two foods found to increase study participants' weights the most; over a four-year period these two foods resulted in an average additional 1.69 pounds and 1.28 pounds weight gain, respectively. Sugar-sweetened beverages and red and processed meats also led to about a pound more of weight.
On the other hand, eating yoghurt can help you lose weight; on average, participants lost 0.82 pounds. The study also provides further support for the notion that eating fruits and vegetables, whole grains and nuts are good for you.
While the weight loss may seem small, the study indicates that a small change in your diet can make a big difference in the long run.
Changes in Specific Dietary Factors May Have Big Impact on Long-Term Weight Gain [Harvard School of Public Health via The Atlantic]