ESV: "who forbid marriage and require abstinence from foods that God created to be received with thanksgiving by those who believe and know the truth."
βρῶμα, “food,” is used elsewhere with various shades of meaning. Paul uses it in his discussions of food being a stumbling block to “weaker” Christians (Rom 14:15, 20; 1 Cor 8:8, 13). Paul's contrasting of food with milk in his discussion of spiritual immaturity (1 Cor 3:2) suggests that βρῶμα is solid food. Paul interchanges it with κρέας, “meat,” in similar discussions (Rom 14:15, 20, 21; 1 Cor 8:13: “If food [βρῶμα] is a cause of my brother's falling, I will never eat meat [κρέα]).
William Mounce, Pastoral Epistles, Volume 46 (Word Biblical Commentary) (Kindle Locations 12386-12390). Zondervan. Kindle Edition.
Also from the New International Dictionary of New Testament Theology under the entry for βρῶμα
1. Lit. use. In the NT, as in the OT, food is a gift from God. We should ask for it daily (cf. Matt. 6:11) and receive it thankfully (cf. 1 Tim. 4:4). Ascetic and ritual tendencies, which classed certain foods as taboo, are rejected by the NT as false teaching (Col 2:16 - 17; 1 Tim 4:3 - 7; Heb. 13:9). No food is unclean as such (Mk 7:18 - 19; cf. Acts 10:14 - 15), and no food possesses any special significance for our relationship to God (1 Cor. 8:8; cf. 6:13). The kingdom of God is realized not in eating or drinking but in righteousness, peace, and joy in the Holy Spirit (Rom. 14:17).
But Christians can be commanded to avoid a particular food (e.g., meat offered to idols) if a fellow Christian by eating will be plunged into a conflict of conscience (Rom. 14:15, 20; 1 Cor. 8:13). Out of love for that tempted believer for whom Christ died, the "strong" Christian must be willing to forego a particular food.