One of the main concerns the FDA had about olestra was it might encourage consumers to eat more of the "top of the pyramid" foods because of the perception of its being healthier. This could result in consumers engaging in over-consumption, thinking the addition of olestra would remove negative consequences. In light of this possibility, approving it as an additive would have meant consumers would be consuming a food with a relatively high amount of an additive, whose long-term health effects were not documented. This made the FDA particularly hesitant to approve the product, as well as the side effects, such as diarrhea, and concern for the loss of fat-soluble vitamins. In August 1990, P&G narrowed their focus to "savory snacks", potato chips, tortilla chips, crackers and similar foods.