Given the task definition and input, reply with output. In this task, you're given a review from Amazon's food products. 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 or mixed, 4: good, 5: extremely good.

I purchased this because of the good reviews and the great ingredients. No doubt about the quality of the food and my 5 month old dachuhund puppy loves it. But I realized this doesn't have DHA that helps to develop cognitive brain function. Also the kibble might be little big for a puppy. So I believe it's a great food for an adult dog, but I wouldn't recommend it for a puppy.
4