In order to help Lipitor (atorvastatin) in reducing LDL cholesterol to 70 mg/dL, certain dietary changes can be beneficial. These changes can contribute to the overall effectiveness of the medication in managing cholesterol levels.

1. **Soluble Fiber**: Incorporating more soluble fiber-rich foods into the diet can aid in lowering LDL cholesterol levels. Soluble fiber can be found in oats, barley, nuts, seeds, fruits, and vegetables [1].

2. **Plant Sterols and Stanols**: Consuming foods that contain plant sterols and stanols can help block the absorption of cholesterol in the body. These are often found in margarine spreads, fortified foods, and supplements [1].

3. **Omega-3 Fatty Acids**: Foods rich in omega-3 fatty acids, such as fatty fish (salmon, mackerel, sardines), flaxseeds, walnuts, and chia seeds, can help increase HDL (good) cholesterol and reduce triglycerides [1].

4. **Limiting Saturated and Trans Fats**: Reducing the intake of saturated fats (found in red meat, butter, and high-fat dairy products) and trans fats (found in processed foods, baked goods, and fried foods) can help lower LDL cholesterol levels [1].

5. **Eating a Variety of Fruits and Vegetables**: A diet rich in fruits and vegetables can provide a multitude of beneficial nutrients, including fiber, antioxidants, and vitamins, which can contribute to overall heart health [1].

Remember, it's important to consult with a healthcare provider before making any significant changes to your diet or starting any new supplements, especially when taking prescription medications like Lipitor.

Sources:
[1] DrugPatentWatch.com. (n.d.). How to Lower Cholesterol Naturally. Retrieved from <https://www.drugpatentwatch.com/lower-cholesterol-naturally/>