Matsuya's Official X Promotes Meat and Egg Dishes on September 11, 'Protein Day'

Matsuya’s official X account (@matsuya_foods) published a post on the morning of September 11 titled “Today, September 11, is ‘Protein Day’.” Highlighting protein as essential for a healthy body, the post asks, “How about getting your protein deliciously with Matsuya’s meat and egg dishes today?”, encouraging followers to pick their meals around the observance. It names no specific product and stays with the general pitch of “dishes made with meat or eggs.”

A Diagram Laying Out 20 Essential and Non-Essential Amino Acids

The attached image shows Macky, Matsuya’s official mascot, with a light bulb signaling a bright idea, and two large circles across the top. The left circle reads “9 Essential Amino Acids” and the right reads “11 Non-Essential Amino Acids.” Along each circle, amino acids such as valine, leucine, isoleucine, methionine and lysine are arranged as color-coded spheres with their letter abbreviations and Japanese names. The 20 amino acids that make up proteins are illustrated on a single sheet, with the words “Protein Day” set large against a red-and-yellow radial background, giving the image a design that puts nutrition knowledge front and center.

“Today Is ○○ Day” Posts: Health Themes Every Few Days Lately

Posts built around an observance, in the form “Today, ○/○, is ‘○○ Day’,” have appeared repeatedly on the official X account since the “Nice Day” post on July 13. Recently, health and nutrition themes have followed one another at short intervals: “Vegetable Day” on August 31, “Sleep Day” on September 3, “Rest Day” on September 8, and now “Protein Day” on September 11, each at a pace of three to five days. Compared with intervals of roughly 6 to 15 days for the same format in July, posting has become more frequent since the end of August.

The format of opening with the emoticon “( ¯꒳¯ )” is also common across the series, and this time too the same emoticon follows the observance name on the first line. Two emojis, “✨” and “😊,” are used, and the post closes with the line “Let’s have a lively day today!” More recently, a post on August 29 for “Meat Day” clearly named two bowls available for that day only, so even within the same observance format, the presence of product names varies.

Protein You Can Get from Matsuya’s Meat and Egg Dishes

How much protein can the “dishes made with meat or eggs” the post refers to actually provide? According to the nutritional information Matsuya publishes, the chicken-based “Chunky Stewed Chicken Curry and Rice” has 47.6 g of protein (1,257 kcal), and the pork-based “Pork & Kimchi Set Meal” has 46.7 g of protein in the regular serving (1,273 kcal), so each contains protein in the high 40-gram range per meal. Recently, nutritional information for meat-centered menu items such as the Salt-based Green Onion Pork Loin Bowl and the Beef Bibimbap Bowl has been updated one after another, so the observance-themed pitch lines up with the actual menu.