Short answer: read the "Other Ingredients" line, the small print under the Supplement Facts panel. That's where products confess. Magnesium stearate, silicon dioxide, microcrystalline cellulose and rice flour are the usual suspects: manufacturing aids and space-fillers, not nutrition. And anywhere you see "proprietary blend," you're being told the ratios are none of your business. The main panel is the brochure; the Other Ingredients line is the deposition.
Here's a five-minute course in reading it like someone who's toured the factory.
The usual suspects, translated
- Magnesium stearate: a lubricant that keeps powder from sticking to capsule-filling machinery. It exists to speed up the production line, not to feed you. Generally regarded as safe; also generally unnecessary if the manufacturer runs the machines slower.
- Silicon dioxide: sand's tidy cousin, added as a flow agent to stop powder clumping. Same story: a machine convenience.
- Microcrystalline cellulose: refined plant pulp used as a bulking agent. Its main job is making a small amount of active ingredient fill a respectable-looking capsule.
- Rice flour: the classic filler. If a "liver" capsule lists rice flour, some fraction of what you're swallowing is, well, rice.
- "Proprietary blend" is not an ingredient but a disclosure loophole: the total weight is stated, the individual amounts aren't. There is exactly one reason to hide ratios from a customer, and it isn't generosity.
The honest nuance: additive ≠ poison
Concession time. None of these ingredients is dangerous at supplement doses. Regulators allow them for good reason, and a product isn't a scam because it contains silicon dioxide. The issue is subtler: fillers dilute (every milligram of cellulose is a milligram of not-the-food), flow agents signal that the line was optimized for throughput rather than purity, and blends remove your ability to compare products at all. You're not reading the Other Ingredients line for danger. You're reading it for priorities.
Natural anti-caking agents vs. synthetic flow agents
One distinction worth knowing before you audit labels: not every processing aid is a synthetic. Some powders genuinely won't fill into capsules without help, and there's a natural route: Nu-FLOW®, for instance, is an anti-caking agent made from rice hulls, a food by-product, doing mechanically what silicon dioxide does synthetically. It's still a processing aid and a brand should still disclose it plainly; but "ground rice hulls" and "manufactured stearates" are different answers to the same problem, and a label that names which one it chose is showing you its reasoning.
What Rise's Other Ingredients lines actually say
Since we've been lecturing, here are our own labels, quoted. Rise Grass-Fed Beef Organ Complex ($54.99, 180 capsules): the panel lists liver, heart, kidney, pancreas and spleen at 600 mg each (a 6-capsule serving is 3,000 mg, no blend, every organ weighed in the open), and the Other Ingredients line reads gelatin capsules (bovine). Full stop. The Liver Capsules' line reads gelatin capsules. The one exception in our lineup, disclosed rather than buried: the Women's Grass-Fed Organ Formula uses a gelatin capsule plus Nu-FLOW®, the rice-hull-based natural anti-caking agent described above, because that particular blend of glandulars won't flow without it. We could leave that out of blog posts. Putting it in is the point.
The 30-second label audit
- Skip the front of the bottle entirely. It's advertising.
- Count the Other Ingredients. One line (a capsule) is a food; a paragraph is a formulation.
- Search for "blend." If amounts are hidden, ask why.
- Check that the actives are weighed individually: "liver 600 mg" beats "organ matrix 3,000 mg."
- Prefer brands that explain their processing aids over brands that pretend they have none.
FAQ
Is magnesium stearate bad for you?
At supplement doses, no. It's regarded as safe. It's a machine lubricant, though, not nutrition, and its presence tells you the manufacturer prioritized filling speed. Avoidable, and worth avoiding when a cleaner option exists.
What does "proprietary blend" mean on a label?
It means the total weight of a mix is disclosed but the individual ingredient amounts are not. It's legal, and it makes comparing products or verifying doses impossible, which is generally why it's used.
What is Nu-FLOW and is it a synthetic flow agent?
Nu-FLOW® is a natural anti-caking agent made from rice hulls. It performs the same mechanical job as synthetic agents like silicon dioxide but comes from a food source. Rise uses it in one product (the Women's Grass-Fed Organ Formula) and lists it on the label.
What should a clean organ supplement's ingredient list look like?
The organ (or organs, individually weighed) plus the capsule. Rise's Organ Complex reads: liver, heart, kidney, pancreas, spleen at 600 mg each, and gelatin capsules (bovine). Nothing else.
Written by the team at Rise Nutrition, Toronto, Canada's single-ingredient ancestral nutrition brand. Our Other Ingredients lines are one item long, and we quote them in public. Questions? ray@risenutritions.ca
