The paper discusses a two-dimensional Fourier transform technique for enhancing the detection of natural abundance 15N NMR spectra using enhanced heteronuclear spectroscopy. The method involves a double transfer of polarization, which significantly improves sensitivity for less sensitive nuclei coupled to protons. The technique is demonstrated using a 1 M solution of 99% enriched N-acetyl valine in perdeuterated dimethylsulfoxide (DMSO-d6). The pulse sequence generates proton magnetization, transfers it to the nitrogen transitions, and then back to the proton transitions, allowing for high-frequency detection. The results show that the method can produce clear 15N spectra with natural isotopic abundance, despite the low 15N abundance (0.36%) and the negative Overhauser effect. The technique is suitable for both deuterated organic solvents and non-exchanging NH groups in proteins dissolved in D2O, opening up new possibilities for studying materials with limited sample volumes.The paper discusses a two-dimensional Fourier transform technique for enhancing the detection of natural abundance 15N NMR spectra using enhanced heteronuclear spectroscopy. The method involves a double transfer of polarization, which significantly improves sensitivity for less sensitive nuclei coupled to protons. The technique is demonstrated using a 1 M solution of 99% enriched N-acetyl valine in perdeuterated dimethylsulfoxide (DMSO-d6). The pulse sequence generates proton magnetization, transfers it to the nitrogen transitions, and then back to the proton transitions, allowing for high-frequency detection. The results show that the method can produce clear 15N spectra with natural isotopic abundance, despite the low 15N abundance (0.36%) and the negative Overhauser effect. The technique is suitable for both deuterated organic solvents and non-exchanging NH groups in proteins dissolved in D2O, opening up new possibilities for studying materials with limited sample volumes.