Is this grammatically correct? What does it mean? Any possible rephrasing? I saw this on the timeline and I checked the comments under the post and many people confirmed they buy it to prepare for their dogs. Some say they buy for personal consumption…

The passage you provided is mostly grammatically correct, but there are a few minor issues, particularly with subject-verb agreement and phrasing. Here’s a breakdown: 1. "Some experts already has told us that noodles are not healthy" should be "Some experts have already told us that noodles are not healthy." 2. The phrase "imagine this one that’s been exposed to air" could be clarified further for better understanding, though it's not grammatically incorrect. Here is a rephrased version that maintains the original meaning while improving clarity and grammatical accuracy: "I saw this on the timeline, and I checked the comments under the post. Many people confirmed that they buy it to prepare for their dogs, while some say they purchase it for personal consumption. Some experts have already told us that noodles are not healthy. Now, imagine how unhealthy this one could be after being exposed to air. I think this is unhealthy for any human to consume. What do you think? Have you ever seen or purchased this before?" This version improves the flow and clarity while correcting grammatical issues.