This Creamy Avocado Smoothie Is a delicious way to help your heart — and waistline. Avocados and almonds are high in fats and research has shown that eating a meal containing "good "fats will keep you sated for a longer period. Add a couple of dates or 1 teaspoon maple syrup or honey to make the drink sweeter. For me the sweetness of the over-ripe banana is plenty.