Matt Weik, BS, CSCS, CPT, CSN, is a fitness and supplement writer, coach, and founder of Weik Fitness. He contributed commissioned content to IIFYM during the pre-sale editorial period.
Historical IIFYM email and invoice records confirm that Matt submitted and was paid for a BMI Calculator article in July 2019. That work is attributed to the live article Body Mass Index | What It Is and How to Properly Use and Read It.