Doctor Sarah Berry, a nutrition expert, reveals that adding nuts and seeds to the diet can reduce cholesterol by 10% in just 10 days. She advises against switching to a low-fat diet, but rather focusing on consuming the right types of fats like polyunsaturated and monounsaturated fats. Dr. Berry also highlights the benefits of including nuts in the diet to lower cholesterol. Additionally, she mentions the importance of reducing red meat consumption and opting for fermented dairy products. Cutting down on refined carbs is also recommended to maintain healthy cholesterol levels.