Preservatives
Is bht clean?
No. Our rubric flags bht under preservatives (evidence: mixed). A synthetic antioxidant with mixed animal findings on tumors and thyroid effects; regulators allow it with limits.
Also on labels as
butylated hydroxytoluene, e321
Low-FODMAP status
Coming soon: whether it is low-FODMAP and at what serving.
From Gutlog's clean ingredient rubric, version 2026.11.0. Ask your assistant "is this clean?" with a photo of the label and Gutlog checks every ingredient. General information, not medical advice.