For those who are Jewish, We forbade all that have claws; and from the cattle and the sheep We forbade their fat except what is attached to the back, or entrails, or mixed with bone. That is a punishment for their rebellion, and We are truthful.
Translation endnotes
[6:145-146] The Quran enumerates the list of the dietary prohibitions and states clearly that only the enumerated ones are prohibited by God. It is up to your experience, taste, cultural cuisine, or doctor to pick what to eat or not to eat. You may choose to not eat frog legs, but you cannot attribute your personal taste to God and criticize others in the name of God. In verses 145 and 146, God indirectly tells us that He is able to distinguish meat from fat, as opposed to clergymen's claim, and if He wishes to prohibit fat alone He could express that. Those who do not appreciate God's wisdom and ability to use the language to communicate His will, despite these clear verses, follow numerous contradictory prohibitions falsely attributed to Muhammed, who followed the Quran alone. See 10:59-60; 16:112-116. Similar prohibitions are found in the Old Testament, Leviticus 17:11-15; Deuteronomy 12:24; 14:8; 14:21. Deuteronomy 14:7 mentions the additional prohibition.