Based on the information provided, there is no evidence to suggest that eating spinach is contraindicated while taking Lipitor (atorvastatin), a medication used to treat high cholesterol. However, it is important to note that certain foods can potentially interact with medications, including statins like Lipitor.

According to the article from NKCH (The Children's Mercy Hospital) titled "Foods that can fool with your meds," consuming grapefruit or grapefruit juice should be avoided while taking statins, as it can increase the amount of medication in the bloodstream, potentially leading to adverse effects [1]. However, this warning does not apply to spinach.

The Guthrie blog post, "Don't Eat These Foods If You Take Blood Thinners or Statins," does not specifically list spinach as a food to avoid while taking statins [2].

Lastly, the Lipitor patent information from DrugPatentWatch does not contain any warnings or information about food interactions [3].

While the provided sources do not indicate that spinach interacts with Lipitor, it is always best to consult with a healthcare provider or pharmacist for personalized advice regarding medication and diet interactions.

Sources:
[1] <https://www.nkch.org/blog/foods-that-can-fool-with-your-meds>
[2] <https://www.guthrie.org/blog/dont-eat-these-foods-if-you-take-blood-thinners-or-statins>
[3] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>