Average Salary and Wage for Nutritionists. According to the United States Bureau of Labor Statistics, as of May 2013, the average annual salary for nutritionists was $56,300. On the other hand, non-salaried nutritionists earned an average hourly wage of $27.07 in that same year.verage Salary and Wage for Nutritionists. According to the United States Bureau of Labor Statistics, as of May 2013, the average annual salary for nutritionists was $56,300. On the other hand, non-salaried nutritionists earned an average hourly wage of $27.07 in that same year.