What is the ruling on feeding animals dietary supplements that accelerate their growth, and what is the ruling on selling the meat of an animal that was raised in this manner?

The true nature of a substance that accelerates animal growth cannot be determined except by consulting specialists. The mere acceleration of growth does not prohibit its use, unless it is harmful to the animal or humans, in accordance with the Almighty's saying: "And do not kill yourselves" and the Hadith: "There is no harm [to oneself] and no harming [of others]." Selling the meat of an animal fed with these substances is permissible if it does not harm humans, but the seller must disclose this to the buyer to avoid deception. The prohibited gharar (uncertainty/risk) is that which has an unknown outcome, and the reference for judging it belongs to experts, not jurists.