by David Goldman  , Thomas Waterfall  and Matthew Nagra

Received: 06 May 2026;  Published: 13 October 2026;  doi: 10.21926/rpn.2604026

The carnivore diet consists of meat, fish, eggs, and animal fats, and excludes all plant-based foods. Controlled prospective studies have not evaluated the implications of the carnivore diet for cardiovascular safety, and the existing evidence base remains limited in quality and scope. This narrative review evaluated the scientific literature on the carnivore diet to assess nutrient adequacy, metabolic effects, and alignment with established dietary guidelines for cardiovascular disease (CVD) prevention. We searche [...]

by Natalia Guadalupe Saez  , María Verónica Lancelle Cedrolla  , Alicia Ernestina Gómez  , Yanina Pavón  , Daniela Marta Guglielmotti  and María Luján Capra

Received: 24 February 2026;  Published: 06 October 2026;  doi: 10.21926/rpn.2604025

Gluten-free (GF) bread making faces significant sensory, technological, and nutritional challenges. GF breads, typically formulated with commercial premixes, often exhibit deficiencies in texture, flavor, and nutritional value compared to wheat-based breads, leading to dissatisfaction among consumers with celiac disease or similar conditions. Although sourdough (SD) improves technological and sensory attributes, its production is laborious and complex. Starter cultures of selected lactic acid bacteria (LAB) strains [...]

by Jonathan K Sinclair  , Lauren Baker  and Lindsay M Bottoms

Received: 20 April 2026;  Published: 30 September 2026;  doi: 10.21926/rpn.2603024

Poor sleep and insomnia are prevalent and carry substantial health and societal costs. Tart cherry (Prunus cerasus) contains polyphenols and melatonin and has been proposed as a dietary strategy to support sleep. This systematic review and meta-analysis synthesised evidence from randomised controlled trials (RCTs) evaluating the effects of tart cherry supplementation on sleep quality and biomarkers linked to inflammatory and melatonin-related pathways. PubMed, Scopus, and Web of Science were searched from inception [...]

by Taiwo Ayodele Aderinola  , Uche Capulet Anyaiwe  and Sinmiloluwa Esther Ogunbowale

Received: 14 April 2026;  Published: 23 September 2026;  doi: 10.21926/rpn.2603023

This study evaluates the potential of composite flours made from cassava, sorghum residue, and garden egg (both ripe and unripe) to create a nutritionally enhanced doughmeal. Seven flour blends were formulated: A (100% cassava), B (95% cassava, 2.5% sorghum residue, 2.5% ripened garden egg), C (95% cassava, 2.5% sorghum residue, 2.5% unripened garden egg), D (90% cassava, 5% sorghum residue, 5% ripened garden egg), E (90% cassava, 5% sorghum residue, 5% unripened garden egg), F (85% cassava, 7.5% sorghum residue, 7 [...]

by Taiwo Ayodele Aderinola  , Uche Capulet Anyaiwe  and Blessing Oluwanifemi Adeyemi

Received: 14 April 2026;  Published: 18 September 2026;  doi: 10.21926/rpn.2603022

Yam is a widely consumed staple food but has a high carbohydrate content and limited functional attributes. This study evaluated the nutritional, antioxidant, and in vitro antidiabetic properties of doughmeals produced from yam and tigernut flour blends at ratios of 95:5, 90:10, 85:15, 80:20, and 100% yam (control). Results showed that tigernut inclusion significantly improved the nutritional profile, with protein increasing from 8.09% to 11.81% and crude fiber rising from 0.24% to 1.14%. Ash and fat contents also [...]

by Kevin Liu  , Wenbiao LU  and Kaiyu Xiao

Received: 06 April 2026;  Published: 09 September 2026;  doi: 10.21926/rpn.2603021

Trace minerals (Cu, Fe, Mn, Zn, I and Se) are essential components of numerous enzymes thus indispensable for metabolism, immunity, growth and reproduction. Inorganic forms of these minerals (ITM) are widely used in the poultry industry often with much in excess in order to cover various uncertainties, resulting in not only oxidative deterioration of feeds and gastro-intestinal health, but also large proportions to be excreted into the eco-system, leading to many jurisdictions to set up limits of Cu and Zn usages i [...]

by Ricardo H. Hernández-Figueroa  , Aurelio López-Malo  and Emma Mani-López

Received: 17 April 2026;  Published: 04 August 2026;  doi: 10.21926/rpn.2603020

Cottage cheese is a promising matrix for delivering probiotic microorganisms due to its buffering capacity, high moisture content, and consumer acceptance. In this study, a probiotic cottage cheese incorporating Lactobacillus acidophilus LA-5 was developed and evaluated against a control formulation and commercial products. Physicochemical properties, probiotic viability, acidification kinetics, and sensory acceptance were assessed during refrigerated storage. The formulation consistently maintains viable probiotic [...]

by Folayemi J. Isaac-Bamgboye  , Bukola S. Salami  , Daniel S. Ajewole  and Ireoluwa T. Isaac-Bamgboye

Received: 13 May 2026;  Published: 04 August 2026;  doi: 10.21926/rpn.2603019

The unbalanced nutrient density and low microbiological quality of many complementary foods are still the primary causes of infant malnutrition in poorer countries. In this study, complementary food was produced using blends of grain amaranth, African yam bean, and carrot flour. The resultant complementary food was analysed for proximate, mineral, antinutrients, antioxidant compositions, vitamin C, beta-carotene, microbial properties, and sensory evaluations. Principal component analysis was also used to assess nut [...]

by Dylan J. Stephens  , Evan B. Johnson  and Bradley J. Johnson

Received: 21 February 2026;  Published: 30 July 2026;  doi: 10.21926/rpn.2603018

Berberine is an alkaloid chemical found in plants, including Berberidaceae, Coptis rhizomes, and Hydrastis canadensis. Berberine has been shown to improve insulin sensitivity, promote adipocyte loss, and is associated with higher levels of skeletal muscle protein synthesis. The purpose of this study was to examine berberine’s dose-dependent effects on C2C12 myoblast proliferation and 3T3L1 adipocyte differentiation. Cells were grown out over 3 weeks, and once confluent at 90%, they were treated with berberine to ex [...]

by Neha Bakshi  , Vritti Loomba  and Arvinder S. Soin

Received: 24 February 2026;  Published: 27 July 2026;  doi: 10.21926/rpn.2603017

Dietary and lifestyle choices have considerable effects on skin health, which reflects overall well-being. Nutrition is now a key component in the management and prevention of skin-related issues due to the increasing incidence of dermatological disorders and the growing demand for anti-aging remedies. This review examines the complex relationship between nutrition, diet, and skin aging, with a focus on the functions of probiotics, vitamins, minerals, essential fatty acids, and antioxidants. Evidence suggests that [...]