Fast food chains have tried for years to woo health-conscious diners by mixing lighter fare like salads and yogurt with the usual burgers, fried chicken and shakes.

But as menus swelled over the past three decades with grilled chicken wraps (McDonald’s) and “fresco” burritos (Taco Bell), many options grew in size and the calories and sodium in them surged, according to new study from researchers at Boston University and Tufts.

The researchers studied 1,787 entrees, sides and desserts at 10 chains — Arby’s, Burger King, Carl’s Jr., Dairy Queen, Hardee’s, Jack in the Box, KFC, Long John Silver’s, McDonald’s and Wendy’s — from 1986 to 2016. In that time, the number of items in those three categories rose 226 percent.

According to the study — published last week in The Journal of the Academy of Nutrition and Dietetics — even with lighter items in the mix, fast food menus are less healthy than they were 30 years ago.