I'd say yes! Peanut butter is probably one of the most-acid inducing foods because it is primarily fat. It requires more energy to digest (just like any other fatty food), which requires more acid to do the job. Lay off the PB, and switch to a low-fat carb-based diet. Simple sugars are easily digested.
Japanese millet is most successful when planted on prepared soil, although Japanese millet will germinate and grow just about anywhere. For Duck food plots, plant the Japanese millet early in the summer (June-July) depending on the start date of your duck season. Japanese millet seed heads will hold on longer than most millet varieties, even in standing water. The seed will slowly drop out of the seed head feeding the ducks over time.
If You Build it They Will Come. In duck hunting, we know food is king when it comes to attracting and holding ducks. Just as deer hunters do, a lot of duck hunters plant food plots for ducks. An excellent choice when it comes to what to plant is Golden Millet. Corn, which is often the go to plant in food plots for ducks, needs to be planted in the Spring and can cost upward of $400 an acre. It could be in the ground for over 6 months before the season begins. A lot of things can go wrong in 6 months.