Marine-Derived Nutraceuticals: Trends and Prospects; Nutritional Value of Sea Lettuces; Prospects and Potential Applications of Seaweeds as Neuroprotective Agents; Chitosan-Based Biomaterials against Diabetes and Related Complications; Nutraceutical Benefits of Marine Sterols Derivatives; Nutritional Value, Bioactive Compounds, and Health-Promoting Properties of Abalone; Marine Biopolymers in Asian Nutraceuticals; Marine Natural Antihypertensive Peptides from Styela clava Having Multifunctions of ACE Inhibition and NO Production in Endothelial Cells; Beneficial Effects of Marine Natural Products on Autoimmune Diseases; Extraction of Nutraceuticals from Shrimp By-products; Fucoidan: A Potential Ingredient of Marine Nutraceuticals; Chitosan for Body Weight Management: Current Issues and Future Directions; Prospects of Indonesian Uncultivated Macroalgae for Anticancer Nutraceuticals; Active Ingredients from Marine Microorganisms for Modern Nutraceuticals; Potent Anticancer Actions of Omega-3 Polyunsaturated Fatty Acids of Marine Nutraceuticals; Chitosan Application in Dentistry; Edible Marine Invertebrates: A Promising Source of Nutraceuticals; Chitosan and Its Derivatives: Potential Use as Nutraceuticals; Marine Sulfated Polysaccharides with Unusual Anticoagulant Action through an Additional Unrelated-Natural Inhibitors Mechanism; Enzymatic Production of N-Acetyl-d-Glucosamine Using the Enzyme from the Liver of Squid; High-Density Chitin–Chitosan Production and Beneficial in Health; Antioxidant Effects of Marine Food-Derived Functional Ingredients; Biological and Biomedical Applications of Marine Nutraceuticals; Fucoidans from Marine Brown Macroalgae: Isolation, Identification, and Potential Biological Activities