The sugar substitute is called oligofructose, or OFS. It's used to replace fat or sugar and reduce the calories of foods like ice cream, dairy products, and baked goods. OFS has about 30% to 50% of the sweetness of table sugar, according to the FDA.
The study involved 96 adults, ages 32 to 63, with mild or borderline hypertension. That means their systolic blood pressure reading (top number) was 120 to 139 and/or their diastolic (bottom number) reading was 80 to 89.
Asked to comment on the findings, AHA spokeswoman Alice Lichtenstein, DSc, a nutritionist at Tufts University, tells WebMD that "the study is very interesting. But we need further study before we can make recommendations about whether people should take OFS supplements."