One Day MD | Evidence-Based Wellness

Microplastics (particles <5 mm) and nanoplastics (typically <1 μm) are increasingly recognized as potential disruptors of mitochondrial function. Mitochondria produce over 90% of the body's ATP (energy), regulate oxidative stress, control apoptosis (programmed cell death), and influence immune responses. Experimental research suggests that microplastics can impair many of these functions, although evidence in humans remains limited. How Microplastics Reach Mitochondria Humans are exposed through: Food and drinking water Seafood Airborne dust Plastic food packaging Synthetic textiles Personal care products While larger microplastics are less likely to enter cells, nanoplastics can cross biological barriers, enter cells through endocytosis, and accumulate in organelles, including mitochondria in laboratory models. Mechanisms of Mitochondrial Damage 1. Excessive Reactive Oxygen Species (ROS) One of the earliest effects observed is increased mitochondri...

NMN remains one of the most discussed longevity ingredients in the anti-aging space. It sits at the centre of the NAD+ conversation, alongside NR, niacinamide, resveratrol, quercetin, and TMG. This updated guide keeps the same core theme as the original article, but strengthens it with three buyer priorities that matter most in 2026: purity , bioavailability , and TMG stacking . Editor’s note: NMN is best approached as a quality-sensitive supplement. A product may look impressive on the label, but the real value depends on what is actually inside the capsule, how well it is delivered, and whether the formula supports methylation balance. Quick verdict If you want the shortest possible answer, here it is: Best premium NMN-style pick: Wonderfeel Youngr NMN Best liposomal NMN formula: Codeage Liposomal NMN + Resveratrol + Quercetin + TMG Best simple NAD+ support option: Tru Niagen Best value precursor option: Nutricost Niacinamide What is NMN? NMN stands for ...

Clinical Quick-Reference Card Protocol Definition: A 5-day, plant-based, low-protein, low-carbohydrate, high-unsaturated-fat dietary regimen engineered to trigger the metabolic and cellular cellular renewal pathways of water fasting without starvation. Standard Caloric Allocation: Day 1: ~1,100 kcal (~11% protein, 46% fat, 43% complex carbs). Days 2–5: ~725–750 kcal (~9% protein, 44% fat, 47% complex carbs). Primary Molecular Triggers: Downregulation of mTOR, IGF-1, and PKA pathways; activation of AMPK, Sirtuins (SIRT1/SIRT3), and autophagy; elevation of circulating beta-hydroxybutyrate (βHB). Landmark Human Findings (Nature Comms, 2024): 3 consecutive monthly cycles resulted in a median biological age reduction of 2.5 years , alongside significant decreases in hepatic fat, fasting insulin, and blood pressure, independent of total weight loss. Medical Oversight Requirement: Mandatory physician clearance for individuals taking ...

By the One Day MD Editorial Team  |  Originally published September 2020  |  Last updated and medically fact-checked: July 26, 2026 NAD, NAD+, NADH, NR, NMN, niacin, niacinamide, and NAC — these overlapping names cause constant confusion, and understandably so. Some are simply different names for the same molecule. Others are metabolic precursors that your body converts, step by step, into NAD+. One of them, NAC, isn't related to NAD+ metabolism at all. This guide breaks down what each compound actually does, how the human evidence stacks up as of 2026, and where the real safety trade-offs lie — including the January 2026 head-to-head human trial that finally pitted NR against NMN directly, and the FDA's 2025 reversal on NMN's legal status. Quick Answer NAD+ is the coenzyme your cells actually need for energy production and DNA repair, and it can't be taken as an oral supplement because it's too large a molecule to survive digestion intact. NR, NMN,...