Given the task definition and input, reply with output. In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.

I do keto, and at times struggle with my electrolyte intake, and also bounce off and on the diet occasionally. I have been taking these a few weeks now, and I have noticed I feel much better having an electrolyte replacement. I lose so much fluid on keto that I often have weak moments and flu like symptoms if I am not careful. These have helped tremendously.
5