Low-field bench top ¹H nuclear magnetic resonance (LF-NMR) relaxometry instruments have been increasingly popular as analytical tools for engineering research. Magnetic resonance imaging, which is a more advanced approach to NMR technology, provides the researcher with images of the internal structure without any disruption to the sample and has been commonly used in medical applications in analysis of soft tissue. The non-invasive and non-destructive nature coupled with the high discriminative power of LF-NMR and MRI, makes them invaluable tools of analysis for a wide range of applications in food science. This review covers the basic concept behind NMR/MRI technology and discusses some of its most commonly used food applications. The review addresses the food scientist with no prior knowledge of NMR/MRI and aims to supply the reader with both the theory of the method and its fundamentals, as well as the practical uses in scientific research and industrial applications.

低场长凳¹H核磁共振（LF-NMR）弛豫测量仪器已越来越流行为工程研究的分析工具。磁共振成像是NMR技术的一种更先进的方法，可为研究人员提供内部结构的图像，而不会破坏样品，并且已广泛用于医学应用中的软组织分析。LF-NMR和MRI具有非歧视性和非破坏性，具有很高的判别能力，使其成为食品科学中广泛应用的宝贵分析工具。这篇综述涵盖了NMR / MRI技术背后的基本概念，并讨论了其一些最常用的食品应用。