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Scalar-isoscalar states are analyzed within the large-Nc Regge approach. Wefind that the lightest f0(600) scalar-isoscalar state fits very well into thepattern of the radial Regge trajectory. We confirm the obtained mass valuesfrom an analysis of the pion and nucleon spin-0 gravitational form factors,recently measured on the lattice. We find that a simple two-state modelsuggests a meson nature of f0(600), and a glueball nature of f0(980), whichnaturally explains the ratios of various coupling constants. Finally, matchingto the OPE requires a fine-tuned mass condition of the vanishing dimension-2condensate in the Regge approach with infinitely many scalar-isoscalar states.

Scalar-isoscalar states, gravitational form factors, and dimension-2 condensates in a large-Nc Regge approach