Ketogenic dieting has taken 2018 by storm — the hashtag #keto yields nearly 10 million posts on Instagram alone. The so-called "keto" diet, is low-carb and higher in protein and good fats. That means eating less sweets, which can be hard to stick to.

Enter Nui cookies, a super low-sugar, high-fat cookie created to fulfill all keto dieters' dessert dreams. The company landed a $300,000 investment from guest judge Alex Rodriguez on ABC's "Shark Tank" on Sunday. After all, his girlfriend is a cookie junkie.