It’s the sugar. Read Dr. Casey Means book.
Sugar in moderate amounts has not hurt me at all. I love cheesecake and toast with strawberry jelly & butter. But I eat small servings each day. Salt is bigger enemy for me. All frozen foods such as pizza and canned soups are loaded with sodium and Jack up my blood pressure. I try to cook from scratch as much as pisdible. No heart attacks, no strokes, no circulation problems in legs, and take only one Rx of 10 mg Lisinopril as a precaution for high blood pressure.