EPISODE · Jul 6, 2026 · 34 MIN
What Our Food Scientist Won't Buy at the Supplement Store w/ Ruston Pack
from Just Ingredients · host Just Ingredients
In this episode, I sit down with Ruston Pack, our Food Scientist and Director of Quality and Regulatory at Just Ingredients, who's spent 7 years in R&D, manufacturing, and food science, and has seen firsthand some of the wildest things that happen behind the scenes in the supplement industry. Ruston pulls back the curtain on what's actually happening inside a supplement bottle between the day it's made and the day you take it, and some of it might surprise you. Here are a few of my biggest takeaways from our conversation: Supplement labels don't work like you think We talk about the difference between a Nutrition Facts Panel and a Supplement Facts Panel, and why that distinction matters. Ruston breaks down whether the amount listed on a label is exactly what's in the product, and whether companies only have to hit that number on day one, or all the way through the expiration date. Why supplements break down over time Light, oxygen, moisture, heat — supplements are fighting a slow battle against all of it from the moment they're manufactured. We get into why certain ingredients are especially hard to keep stable, and what you can look for as a consumer. Gummies are the hardest format to get right If you've ever wondered why your gummy vitamins taste a little different bottle to bottle, this is why. We talk about why water is the enemy of stability, what actually happens to melatonin and other actives as gummies sit on a shelf, and why some companies use large overages to compensate. Ruston also gets into the creatine conversation, and why the gold-standard powder form gets tricky the moment it's mixed into a gummy or a drink. How to shop smarter We close out with the practical part: what to actually look for on a label, what separates a company that's cutting corners from one that's genuinely trying to do formulation right. This one is a must-listen if you've ever tossed a supplement in your cart without a second thought. My hope is it helps you feel a little more confident reading labels and asking better questions about what you're actually giving your family. Tune in now and share this one with a friend who needs to hear it. Bio: Ruston is a chemist by education and a food scientist by profession. He has worked in multiple food and supplement co-manufacturing facilities as an R&D scientist and has extensive experience in formulation, ingredient validation, supplement facts panel verification, and batch corrections for major brands in the industry. He is deeply familiar with the ways companies use deceptive marketing, hide ingredients, and cut corners. Ruston has also studied analytical testing methods used to validate label claims and ensure product integrity. At Just Ingredients, Ruston serves as the Quality and Compliance Manager. He oversees and audits our co-manufacturers, protects product quality, and creates scientific substantiation files to ensure our supplement claims are accurate, compliant, and backed by strong research. Save 20% off at Activce Skin Repair with code JUSTINGREDIENTS: https://shop.bldgactive.com/JUSTINGREDIENTS Looking for more Just Ingredients content? Instagram Stories: @just.ingredients Podcast Instagram: @just.ingredients.podcast Facebook Community: Join our group Learn more about your ad choices. Visit megaphone.fm/adchoices
What this episode covers
In this episode, I sit down with Ruston Pack, our Food Scientist and Director of Quality and Regulatory at Just Ingredients, who's spent 7 years in R&D, manufacturing, and food science, and has seen firsthand some of the wildest things that happen behind the scenes in the supplement industry. Ruston pulls back the curtain on what's actually happening inside a supplement bottle between the day it's made and the day you take it, and some of it might surprise you. Here are a few of my biggest takeaways from our conversation: Supplement labels don't work like you think We talk about the difference between a Nutrition Facts Panel and a Supplement Facts Panel, and why that distinction matters. Ruston breaks down whether the amount listed on a label is exactly what's in the product, and whether companies only have to hit that number on day one, or all the way through the expiration date. Why supplements break down over time Light, oxygen, moisture, heat — supplements are fighting a slow battle against all of it from the moment they're manufactured. We get into why certain ingredients are especially hard to keep stable, and what you can look for as a consumer. Gummies are the hardest format to get right If you've ever wondered why your gummy vitamins taste a little different bottle to bottle, this is why. We talk about why water is the enemy of stability, what actually happens to melatonin and other actives as gummies sit on a shelf, and why some companies use large overages to compensate. Ruston also gets into the creatine conversation, and why the gold-standard powder form gets tricky the moment it's mixed into a gummy or a drink. How to shop smarter We close out with the practical part: what to actually look for on a label, what separates a company that's cutting corners from one that's genuinely trying to do formulation right. This one is a must-listen if you've ever tossed a supplement in your cart without a second thought. My hope is it helps you feel a little more confident reading labels and asking better questions about what you're actually giving your family. Tune in now and share this one with a friend who needs to hear it. Bio: Ruston is a chemist by education and a food scientist by profession. He has worked in multiple food and supplement co-manufacturing facilities as an R&D scientist and has extensive experience in formulation, ingredient validation, supplement facts panel verification, and batch corrections for major brands in the industry. He is deeply familiar with the ways companies use deceptive marketing, hide ingredients, and cut corners. Ruston has also studied analytical testing methods used to validate label claims and ensure product integrity. At Just Ingredients, Ruston serves as the Quality and Compliance Manager. He oversees and audits our co-manufacturers, protects product quality, and creates scientific substantiation files to ensure our supplement claims are accurate, compliant, and backed by strong research. Save 20% off at Activce Skin Repair with code JUSTINGREDIENTS: https://shop.bldgactive.com/JUSTINGREDIENTS Looking for more Just Ingredients content? Instagram Stories: @just.ingredients Podcast Instagram: @just.ingredients.podcast Facebook Community: Join our group Learn more about your ad choices. Visit megaphone.fm/adchoices
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What Our Food Scientist Won't Buy at the Supplement Store w/ Ruston Pack
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