How to Read Our Grade Cards | Grandma's Wisdom Explained with Stars (Evidence) and Colors (Safety)

Ever wondered what the stars and colored circles at the end of our videos mean? On Grandma's Wisdom, every dish gets a simple card that sums up two things: how much research backs it, and how safe it is. Here's how to read it.

About This Series

We share one dish or drink at a time, handed down in grandmothers' kitchens around the world. Weekdays bring a new recipe, Saturdays a world comparison, and Sundays a recap of the week.

Stars = Evidence

Mark	Meaning
★	Traditional use only / lab or animal research level
★★	Some research, but results are limited or mixed
★★★	Confirmed in studies with people

One star doesn't mean a food is bad. It means people have loved it for a long time, but science hasn't confirmed it yet.

Colors = Safety

Mark	Meaning
🟢	Safe when eaten in normal food amounts
🟡	Take care with large amounts or certain people (such as those on medication)
🔴	Shared for the story only — please don't try it

Let's Read an Example

If a card shows Evidence ★ / Safety 🟢, it means: "Not proven by science, but perfectly fine to enjoy as food." Go ahead and savor it.

The One Caution

When you see a 🟡 yellow card, please read the "one caution" in the video and blog all the way to the end. It means there's something to watch for if you eat a lot of it or take certain medicines. 🔴 Red is for enjoying the old story only.

Sources

The grading scale is this series' own standard. Sources for each dish are listed in full on that episode's blog post.

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This article introduces traditional food customs. It is not intended to diagnose, treat, cure, or prevent any disease. Please talk to your doctor if you have health concerns.