Too much sugar in my green smoothies. :(

I use spinach, almond milk (unsweetened), strawberries (frozen), peaches (frozen), mangos (frozen) and add chia seeds. I just bough flax seed (haven't used it in years!) and plan to use that as well. Sometimes I'll put in a banana instead of say the mango or I'll only do two fruits. But I don't ever have to add honey or some other sweetener. I think it tastes great.