Lipitor, also known as atorvastatin, is a medication classified as a statin. Statins work by inhibiting an enzyme called HMG-CoA reductase, which plays a key role in the production of cholesterol in the liver. By blocking this enzyme, statins reduce the amount of cholesterol produced in the liver, leading to lower levels of LDL (bad) cholesterol in the bloodstream.

The reduction of LDL cholesterol is important because high levels of LDL cholesterol can lead to plaque buildup in the arteries, increasing the risk of heart disease and stroke. By lowering LDL cholesterol levels, statins like Lipitor help to reduce this risk and improve overall cardiovascular health.

It's important to note that while statins are effective in lowering cholesterol levels, they can also have side effects. These can include muscle pain, liver damage, and digestive issues. However, the benefits of reducing cholesterol levels often outweigh the risks for many patients with high cholesterol.

In summary, Lipitor affects lipid digestion in the body by reducing the production of cholesterol in the liver through the inhibition of HMG-CoA reductase. This leads to lower levels of LDL cholesterol in the bloodstream, which can help reduce the risk of heart disease and stroke.

Sources:
[1] www.drugpatentwatch.com/p/tradename/LIPITOR
[2] www.ncbi.nlm.nih.gov/books/NBK430779/
[3] www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013