The least acidic fruit juices include apple, watermelon, apricot and raisin. It is beneficial to drink or consume fruits that have a low acid content daily to avoid an unbalanced diet that can result in acidosis, according to AcidAlkalineDiet.
It is a common misconception that 100 percent fruit juice can cause acid reflux when consumed on an empty stomach. The stomach is naturally acidic, and drinking fruit juice won’t affect the acidity levels. Nutritionists recommended that people with sensitive stomachs drink less acidic juices, such as apple, or dilute the juice with water. Apples contain vitamin C and are considered an excellent source of antioxidants, according to GetFit Nutrition.