World Milk Day (Sekai Gyūnyū no Hi)

What Is World Milk Day / Milk Day?

June 1 is "World Milk Day." It was established in 2001 by the United Nations Food and Agriculture Organization (FAO) as an international day to raise global awareness of milk and highlight the importance of the dairy industry. In Japan, J-milk (the Japan Dairy Association) has designated June 1 as "Milk Day" and the whole month of June as "Milk Month" since 2007, with support from the Ministry of Agriculture, Forestry and Fisheries.

Why June 1 Was Chosen

June is the season when cattle in major dairy regions are let out to pasture. After spending the long winter in barns, cows are released onto lush green pastures, marking a season full of vitality. Because the growth of fresh pasture grass and the rise in milk production coincide around the world at this time, June 1 was chosen as World Milk Day.

The Nutrition and Health Benefits of Milk

Milk is often described as close to a "perfect food" because it contains so many nutrients in a well-balanced form.

• Calcium: The nutrient most associated with strong bones and teeth. The calcium in milk has a high absorption rate (around 40%), making it more efficient than vegetables or small fish.
• Protein: A high-quality protein source containing a good balance of essential amino acids, used to build muscles, organs, and enzymes.
• Vitamin B2: Supports energy metabolism and helps maintain healthy skin and mucous membranes.
• Vitamin B12: Essential for preventing anemia.
• Potassium and magnesium: Help regulate blood pressure and maintain bone density.

Milk and Children's Growth

Calcium intake is especially important during growth periods. Bone density is said to peak around age 20, and how much calcium is accumulated by then has a direct effect on the risk of osteoporosis later in life. According to a Ministry of Education survey, a single 200ml carton of milk served in school lunches contains about 220mg of calcium — a significant portion of the recommended daily intake for children (600–1000mg).

The State of Milk and Dairy Farming in Japan

• Japan's annual raw milk production is roughly 7.6 million tons (2023), with Hokkaido accounting for about 55% of the total.
• The number of dairy farms has been declining steadily since peaking in the 1970s, falling below 10,000 nationwide as of 2024.
• During the pandemic (2021–2022), school lunch suspensions led to a surplus of raw milk, sparking a major nationwide push to "increase milk consumption."
• Regional brands of milk from Hokkaido, such as Yotsuba Milk and Takanashi Milk, have been growing in popularity.

Types of Milk and Their Differences

• Whole milk (unmodified): Raw milk that has simply been pasteurized, with a fat content of 3.0% or more.
• Low-fat milk: Fat content reduced to 0.5–1.5%, for those watching their calorie intake.
• Fat-free milk: Fat content reduced to below 0.5%.
• Processed milk: Milk with added dairy ingredients to adjust richness and nutrition.
• Milk-based drinks: Milk combined with other ingredients such as coffee, fruit juice, or added calcium.

Trivia About World Milk Day

• "Lactose intolerance," which causes stomach upset after drinking milk, affects an estimated 70–80% of Japanese people to some degree. Drinking it warm, in small amounts, or switching to yogurt and other dairy products can help.
• Consumption of "eatable" dairy products like cheese, yogurt, and butter has been on the rise, even as demand for milk as a drink has leveled off.
• The market for plant-based milk alternatives — oat milk, almond milk, and soy milk — is growing fast, though their calcium absorption rates still lag behind cow's milk.
• To mark June's "Milk Month," dairy retailers and farms across Japan often hold events and factory tours.

How to Spend Milk Day

• Check the origin and nutritional label on the milk you usually drink, and consider supporting a local dairy brand.
• Try new recipes using milk, like hot milk, café au lait, or yogurt smoothies.
• Read the nutrition label on a milk carton together with your kids as a chance to talk about nutrition.
• Visit a dairy farm or join a hands-on experience to learn how milk makes its way to your table.

A Glass of White Liquid, Filled with a Farmer's Passion and Nature's Gifts

Every glass of milk you drink each morning is the product of dairy farmers' hard work and the abundance of nature. Let World Milk Day on June 1 be an opportunity to feel gratitude for the milk you drink without a second thought, and to reflect on the current state of dairy farming in Japan.