I also own a keto business (but in Canada). We started a few months ago and are growing super fast. I too struggle to find suppliers.
One thing I’ve done that helped was to reach out to brands and ask them to point me to local distributors. Those may carry other products your friend may need. For instance, I needed sugar free chocolate chips, so I reached out to Lily Sweets and Krisda. One of Krisda’s distributors in Canada also carry a range of things I needed, such as sweetener, almond flour, etc.