Natural Alternatives International (NAI) is a natural alternative for nutritional supplement marketers who want to outsource manufacturing. The company provides private-label manufacturing of vitamins, minerals, herbs, and other nutritional supplements. Its main customers are direct sellers such as Mannatech and NSA International, for whom it makes JuicePlus+ chewables, capsules, and powdered products. NAI also makes some branded products for sale in the US: the Pathway to Healing brand of nutritional supplements, promoted by doctor and evangelist Reginald B. Cherry.