In Israeli products, the problems include Ma'aser, Terumah and Shmittah. All three are made with vinegar which may include wine vinegar. Mustard is sometimes flavored with oleoresins of turmeric or pepper. Supervision is then required because of the di-glycerides or emulsifiers. Require supervision .
Whipped toppings require supervision.
Dry-roasted nuts are ordinarily kosher without supervision. Olives from Israel require reliable supervision. Teruma, Maaser, shmitta . Olives outside Israel which contain only olives, water, ascorbic acid, salt and ferrous gluconate do not require supervision. Requires supervision .