Glossary

The private vocabulary — one clean definition per term.

• Grade — The strength of the underlying evidence for an intervention-outcome claim, expressed on a four-point scale from A (multiple high-quality RCT…
• Certainty — Substrate's separate read on how confident to be in a graded claim. High certainty means the trials converge and the design is robust; low c…
• Belief gap — The distance between what people commonly believe about a supplement and what the graded evidence shows. A large belief-ahead gap means atte…
• Hype position — Where an intervention sits on the attention-vs-evidence cycle: surging (attention runs ahead), emerging (early signal, some trials), evidenc…
• Lag — The gap in time between when consumer attention on a supplement peaks and when the evidence base catches up (or fails to). A "large" lag mea…
• Structure/function claim — A DSHEA-permitted label statement that describes the role of a nutrient or supplement in maintaining normal structure or function of the bod…