Limited Time Only Shamrock Shake®

Price – $3-4 | 500 Cal.

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McDonald’s Shamrock Shake® (2026) – Price, Calories, Ingredients & Allergens

The Shamrock Shake® is McDonald’s minty seasonal classic made with vanilla soft serve, Shamrock syrup, and a whipped topping—and it’s usually only around for a short window during “Shamrock Season.”

Quick Overview

Detail	Info
Price	$3–$4 (varies by location)
Calories (Small)	500 Cal
Available Sizes	Small, Medium, Large
Season	Limited-time (often Feb–March; varies by market)

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Product Description

For a limited time, indulge in the refreshing taste of the legendary McDonald’s Shamrock Shake®. It’s crafted with Vanilla Reduced Fat Ice Cream, blended with cool Shamrock Shake syrup, and topped with Whipped Light Cream for that classic creamy finish.

In 2026, multiple outlets reported it returning starting Feb 17, 2026, for a limited run leading into St. Patrick’s Day (participation can vary by location).

Charity Note (RMHC)

In recent Shamrock seasons, many participating McDonald’s locations have donated $0.25 per Shamrock Shake to local Ronald McDonald House Charities (RMHC) chapters, but dates/availability can vary by region and year.
(For example, McDonald’s corporate previously ran a national 25¢-per-shake campaign window in 2025.)

Ingredients Breakdown

1) Vanilla Reduced Fat Ice Cream

Ingredients: Milk, Sugar, Cream, Corn Syrup, Natural Flavor, Mono and Diglycerides, Cellulose Gum, Guar Gum, Carrageenan, Vitamin A Palmitate.
Contains: Milk

2) Shamrock Shake Syrup

Ingredients: High Fructose Corn Syrup, Corn Syrup, Water, Glycerin; 2% or less of Natural Flavor, Xanthan Gum, Citric Acid, Sodium Benzoate (Preservative), Yellow 5, Blue 1.

3) Whipped Light Cream

Ingredients: Cream, Nonfat Milk, Milk, Liquid Sugar; 2% or less of Mono and Diglycerides, Natural Flavors, Carrageenan; Whipping Propellant (Nitrous Oxide).
Contains: Milk

Nutritional Facts (Small Size – 500 Calories)

Nutrient	Amount	% Daily Value
Calories	500 Cal	—
Protein	11 g	—
Total Carbs	82 g	30%
Total Fat	14 g	18%
Saturated Fat	9 g	44%
Trans Fat	0.5 g	—
Cholesterol	55 mg	18%
Dietary Fiber	0 g	~1%
Total Sugars	63 g	—
Added Sugars	51 g	102%
Calcium	380 mg	30%
Potassium	500 mg	10%
Sodium	160 mg	7%

Allergen Information

✅ Contains: Milk

F.A.Q. About the Shamrock Shake®

Q1: Is the Shamrock Shake available year-round?
A: No—it’s a limited-time seasonal item (usually around March, sometimes earlier depending on the year/market).

Q2: What sizes can I order?
A: Small, Medium, and Large (availability can vary by location).

Q3: How many calories are in a Small Shamrock Shake?
A: 500 calories.

Q4: Does it contain real mint?
A: The mint taste comes from Shamrock syrup flavoring, not fresh mint leaves.

Q5: Is it safe for people with dairy allergies?
A: No. It contains milk (ice cream + whipped topping).

Q6: Is the Shamrock Shake gluten-free?
A: The shake doesn’t list wheat as a primary allergen on the small nutrition page, but always check your local ingredient/allergen info for cross-contact risk.

Q7: Can I remove whipped cream?
A: Many locations can make it without whipped topping—ask at the counter/app notes (depends on store).

Q8: Is it available for delivery?
A: Often yes through McDelivery/third-party apps, but it depends on the restaurant and time of day.

Q9: Why is it green?
A: The syrup includes food colors (commonly Yellow 5 and Blue 1 listed on ingredient pages).

Q10: Does McDonald’s donate to RMHC for each shake?
A: In many regions, $0.25 per shake supports local RMHC chapters during Shamrock season, but dates and participation vary.