I love using kiwis to smoothies because they're low in natural sugar and have delicious flavour. You can throw them into your blender peeled or unpeeled (a lot of nutrients are in and under the skin). But know that even if you peel them, they do have some texture that can add a grittiness to smoothies, even when using a high-speed blender.
To minimze the grittiness, use creamy ingredients like almond or coconut milk, coconut meat, avocado, banana, mango, pineapple, raw macadamias, raw cashews, and blanched slivered almonds.
Kiwis are small but mighty. They're loaded with nutrients. They contain a high amount of Vitamin C (more than oranges) which helps heal wounds, increase iron absorption, and boost the immune system. They also contain magnesium for energy levels (as much potassium as bananas), a decent amount of beta-carotene, and a lot of fiber. With folic acid to build red blood cells, and a truckload of phytonutrients to combat oxidative damage to cells, these furry foods are wonderful for building the blood, and are magic for our skin, hair, teeth, and nails.
This kiwi blend from The Blender Girl Smoothies app is one of my favorites. The mint makes this drink so tasty and refreshing. Enjoy.
*Probiotic Powder - I add 1/2 teaspoon of probiotic powder to all smoothies to replenish stores of healthy bacteria for immunity, digestion, detox, and to balance the acidic effects of high-sugar fruits and other sweeteners. The really potent probiotics require refrigeration. If you have capsules, break the shell and release the powder. Unsweetened probiotic-rich liquids like kefirs (water, coconut water, milk varieties) or kombucha make wonderful health-promoting additions to shakes, too.
*Celtic Sea Salt - I add a pinch (or more) of this alkalizing, mineral-rich salt to all smoothies to boost the natural flavor of fruits and veggies; temper the acidity of sweet fruits and sweeteners; stimulate the lymphatic system; replenish electrolytes; aid digestion; and help the body access energy. I do not recommend adding common table salt which is generally heated to extreme temperatures, iodized, bleached, processed, and refined. This salt does not have the same benefits. If you have a health condition that requires you to limit your sodium intake consult your doctor before adding salt to your smoothies.