11/19/2025
𝐘𝐨𝐮𝐫 𝐬𝐜𝐚𝐥𝐞 𝐰𝐞𝐢𝐠𝐡𝐭 𝐦𝐞𝐚𝐧𝐬 𝐧𝐨𝐭𝐡𝐢𝐧𝐠. 𝐇𝐞𝐫𝐞’𝐬 𝐰𝐡𝐲 𝐭𝐡𝐚𝐭 𝐛𝐨𝐝𝐲 𝐟𝐚𝐭 % 𝐦𝐚𝐜𝐡𝐢𝐧𝐞 𝐚𝐭 𝐲𝐨𝐮𝐫 𝐠𝐲𝐦 𝐢𝐬 𝐩𝐫𝐨𝐛𝐚𝐛𝐥𝐲 𝐰𝐫𝐨𝐧𝐠 𝐭𝐨𝐨... 📊
Day 33 of my “Metabolism Metrics” series, a series covering the metrics I routinely quantify into numbers and track in both myself and my clients for optimal metabolic health...as well as the science behind each of them.
Think you know your true body fat percentage? The shocking truth about why most measurements are WAY off...
Let me challenge what you believe about body fat testing...
That body fat scale at your gym? That handheld device? Even that fancy InBody machine? They’re all affected by one simple factor most people don’t know about: HYDRATION. 💧
Here’s what nobody’s telling you:
⊳Over-hydrated? Your body fat % reads lower than reality
⊳Dehydrated? Your body fat % reads higher than reality
⊳Time of day matters
⊳Recent exercise affects results
⊳Even your last meal impacts readings
The percentile comparisons (comparing you to others your age/sex) are meaningless without considering these factors.
Want both accuracy and precision so that you can quantify results well and use data to achieve your goals? Use better testing methodology.
Stuck with sub-optimal methodology you have at the gym and at home? Here’s the least of what you can do towards minimizing inter-measurement error variability:
➾Consistent testing conditions
➾Same time of day
➾Similar hydration levels
➾Tracking trends, not single readings
This subject was voted for me to cover by ‘The Fittest Forum’. Join for free through the link on my Instagram profile page to have a say in what subject I create and educate you on next.
Tomorrow, we’re exploring something even more fascinating - how much water actually flows through your body daily (spoiler: that ‘8 glasses’ rule is completely wrong). You won’t believe the truth...
🫶🏾 Dr. Nick