Loss Weight With Jenna Elfman Her regiment keeps her lean and toned. Jenna is 5 foot 10 inches, and she has the slender physique that many women admire. Jenna strictly adheres to her diet and exercise philosophy. Want to know what her body slimming secrets are? Check the out below. Jenna Elfman’s Diet Jenna Elfman eats Low Carb and her diet has no sugar ever. Jenna Elfman’s Exercise Jenna takes ballet three times a week and does yoga. Jenna Elfman’s Tips & Secrets “I drink about 100 oz of water every day.” Tweet This Post