You are very right that the Maple syrup is primarily for energy. It does contain some trace minerals and it takes a little longer to break down its sugars, but essentially its an energy source. With veggie juices you will have better opportunity to control how much Sugar you consume. If you start feeling weak, or need a burst of energy to make it through work or school you can juice a sweeter vegetable (like carrots) for a meal (or you can drink some lemonade). When your energy demands are low stick with low Sugar veggies for deeper cleansing and less fuel for the nasties you want to get rid of. The more I research, study and use myself as a Guinea pig, the more I believe that mixed fasting using cleansing drinks, fruit and veggie juices and even clear broths is the best and healthiest way to fast for extended periods of time. Master Cleanse is good, but it is not the best way for every body. Good luck on your quest for better health.