The Macrition Blog
Evidence-based nutrition writing from our editorial team and from verified professionals - dietitians, researchers and health writers whose credentials our editorial team reviews before anything publishes.
Featured
Complete protein powder guide: whey isolate vs concentrate vs casein vs plant blends, DIAAS scoring, dosing for muscle and satiety, third-party testing, heavy metals, and when powders help.
Practical sodium reduction guide: DASH trial evidence, top dietary sodium sources, the restaurant and processed food problem, low-sodium swaps, label reading, and a 7-day reduction plan.
Latest articles
How to eat well for less: the real cost gap between healthy and unhealthy diets, the cheapest nutrient-dense foods, bulk buying, seasonal produce, meal planning, and a $50 weekly grocery template.
How fiber diversity, fermented foods, polyphenols, artificial sweeteners, and antibiotics shape the gut microbiome, with Sonnenburg, Wastyk, and Tim Spector research.
CGMs for non-diabetics: what the data shows, accuracy limits, Hall 2018 trial, ADA position on non-diabetic CGM use, and whether the hype matches the evidence.
Soluble, insoluble, and resistant starch explained. How fermentation makes short-chain fatty acids, why SCFAs matter, and the 25 to 38 g/day target with food sources.
Evidence-based guide to fermented foods: Wastyk 2021 Stanford trial, Marco 2017 framework, kimchi, sauerkraut, kefir, kombucha, miso. Live cultures, dosing, and clinical evidence.
Collagen peptides for skin, joints, and muscle. What meta-analyses by de Miranda and Garcia-Coronado show, the FACE trial results, dosing, and established versus emerging evidence.
Evidence-based 2025 guide to coffee and caffeine. Mortality, diabetes, cognitive decline, pregnancy, sleep, and practical dosing recommendations from large cohort studies.
Evidence-based guide to cholesterol: LDL, HDL, triglycerides, non-HDL, lipoprotein(a), and ApoB. Lifestyle and medication guidance per 2018 ACC/AHA guidelines.
Evidence-based guide to lowering blood pressure with diet. DASH diet, sodium targets, potassium-rich foods, lifestyle, and medication per 2017 ACC/AHA guidelines.
How dietary nitrates from beetroot lower blood pressure and improve exercise performance, with dosing, the Jones and Lansley trials, the mouthwash interaction, and AHA guidance.
Ashwagandha as an adaptogen: Chandrasekhar 2012 cortisol trial, Lopresti 2019 stress and sleep study, KSM-66 dosing, safety, and what the randomized trials actually show.
Anti-inflammatory foods ranked by evidence: the Dietary Inflammatory Index, CRP-lowering foods, omega-3 to omega-6 ratio, polyphenols, and what the clinical trials show.