Aim: To describe eating and drinking ability in adults with cerebral palsy (CP) relative to sex, age, subtype, and severity of gross motor and hand function and nutritional status.Method: This was a cross-sectional study based on data of 2035 adults with CP, median age 26 years (range 18-78 years). The Eating and Drinking Ability Classification System (EDACS), Gross Motor Function Classification System (GMFCS), and Manual Ability Classification System (MACS) were used in addition to subtype, body weight, height, body mass index (BMI), skin fold thickness, and gastrostomy. Linear regression models were used to estimate associations between body weight and the other variables.Results: More than half of the adults (52.5%) eat and drink safely and 32.4% have dysphagia with limitations to eating and drinking safety. Weight, height, and BMI decreased with increasing EDACS levels. In EDACS level V, 86% had a gastrostomy, 23.4% in EDACS levels III to V were underweight, whereas 42.3% in EDACS levels I to II had a BMI over 25, indicating overweight or obesity. Increasing EDACS levels and need of support during meals were associated with lower body weight.Interpretation: Adults with CP should be routinely screened and treated for dysphagia to avoid nutritional complications. Being dependent on others during mealtimes is a risk factor for low body weight.