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About The Fit Nerd

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The Fit Nerd was built for people who train hard, work hard, and refuse to settle. We partner with FDA-registered, GMP-certified manufacturers to source clean, straightforward formulas — no fillers, no fluff, no proprietary blends.

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Lion's Mane Mushroom: What the Science Actually Says About Focus, Memory, and Mood

Lion's mane mushroom is everywhere in nootropics marketing. Here's what the actual human research shows about its effects on focus, memory, and mood — and how to use it without overpromising.

Plant Protein vs Whey Protein: Which Is Actually Better for You?

Plant protein vs whey: which is actually better? We compare amino acid quality, what training studies really show, sustainability, and who should pick which.

How Much Protein Do You Actually Need? A Science-Backed Daily Guide

The RDA says 0.8 g/kg, but lifters need more. We break down what the latest meta-analyses say about daily protein targets, per-meal dosing, and whether plant protein really matches whey.