In 2003 researchers looked at the association between authors' published positions on the safety and efficacy in assisting with weight loss of olestra, a fat substitute manufactured by the Procter & Gamble (P&G), and their financial relationships with the food and beverage industry. They found that supportive authors were significantly more likely than critical or neutral authors to have financial relationships with P&G and all authors disclosing an affiliation with P&G were supportive. The authors of the study concluded: "Because authors' published opinions were associated with their financial relationships, obtaining noncommercial funding may be more essential to maintaining objectivity than disclosing personal financial interests."[29]