Yes, it is definitely ok to mix fruits and veggies together in your NutriBlasts - in fact, we highly recommend it! However, there are a few things to keep in mind when selecting your ingredients:
First, it is important to use moderation when adding fruits to your blasts. While fruit is highly nutritious, it also contains natural sugars, which can easily add up in your Blast. To keep fruit servings to an appropriate amount, we recommend that you build your blast using a foundation of dark leafy greens like spinach, kale, or Swiss chard before adding any other ingredients. Filling your cup about halfway with these vegetables will greatly increase the nutritional content of your drink, and will take up space that might otherwise be used for fruits.
After you've added your greens, you can add 1-2 servings of the fruit(s) of your choice. A serving of fruit is defined as one medium piece of whole fruit like apples, bananas, pears, or oranges (peeled); 1 cup of small, lower sugar fruits like berries or pitted cherries; 1/2 cup of cut fruit like mango, pineapple, or melon; or 1/4 cup of dried fruit like raisins, goji berries, dried apricots, or dried figs. If you want to add additional vegetables like carrots, celery, bell peppers, or cucumbers to your blast, you do not need to reduce your fruit content, provided ingredients do not exceed the MAX LINE level.
Second, it's important to assess how your Blast fits in with the rest of your diet. If your NutriBlast is the only source of fruit in your diet, you might be able to get away with adding an extra serving or two, provided your body doesn't have any problems regulating blood sugar. If you snack on fruit throughout the day, however, you should make sure not to exceed the recommended intake of 2-3 servings of fruit per day, and include your NutriBlast in this equation.
If using your Blast as a meal replacement, it is also important to add a serving of healthy fats along with your veggies and fruits to assist with nutrient absorption and blood sugar regulation, and to keep you satisfied and fueled until your next meal. Popular choices of healthy fats include 1 Tbsp. nut butter, 2 Tbsp. seeds or chopped nuts, or 2 tsp. minimally processed oils like olive oil, flax, or coconut oil.
As far as liquids go, water and/or unsweetened almond milk are generally the best options. Coconut water gives blasts a deliciously sweet flavor, but contains natural sugars; you may want to reduce the fruit content of your Blast if you plan to use coconut water. It is best to avoid using fruit juice and other sugary drinks as the liquid component of your blast.
Hope this helps, and happy blasting!