Complex sentence: The Facebook site challenged Israelis to buy the exact same list, as just the pudding is around the equivalent of 1 shekel in Germany, while in Israel 4 or 5 shekels would be needed.
Split into simpler sentences: The Facebook site challenged Israelis to buy the exact same list. Just the pudding is around the equivalent of 1 shekel in Germany, while in Israel 4 or 5 shekels would be needed.