1. ANSWER
False. The claim that "sugar makes kids hyperactive (or 'the sugar high' is real)" is a myth. Decades of controlled studies, including meta-analyses, show no causal link between sugar consumption and hyperactivity in children. Parental expectations often explain perceived effects.12

2. EVIDENCE
- A 1995 meta-analysis in JAMA reviewed 23 double-blind, placebo-controlled studies (over 500 children) and found sugar has no effect on behavior or cognition, even in high doses or for "sugar-sensitive" kids.12 (November 22, 1995)
- CNN/NCBI summary (2026 crawl): "No conclusive evidence that sugar causes kids to act differently"; cites Wolraich meta-analysis.3
- National Geographic (June 8, 2023): Association "thoroughly debunked" in 1994/1995 reviews; AAP nutrition chair confirms "no association—none."4
- University of Utah Health (Aug 27, 2025): Studies show no correlation; placebo trials confirm.5
- FIU News (Oct 23, 2025): No causal link to hyperactivity/ADHD; minor short-term energy possible but not causative.6
Some observational studies (e.g., Farsad-Naeimi meta-analysis, 2020) suggest weak associations with ADHD symptoms or sugar-sweetened beverages, but these are correlational (high heterogeneity, possible reverse causation), not causal, and contradicted by RCTs.7 No new 2025-2026 RCTs overturn the consensus.

3. CREDIBILITY
10/10. Overwhelming consensus from gold-standard RCTs and meta-analyses; myth persists due to expectation bias, not evidence.

4. BIAS
CENTER. Sources include JAMA, NCBI, AAP, universities (Utah, FIU), CNN, National Geographic—scientific/medical outlets with no ideological slant.