Talk about pouring on the pounds.

Both Burger King and Starbucks are shaking up their spring drinks with some calorie-ridden concoctions.

Cereal lovers, rejoice: The burger chain will be serving a Froot Loops Shake for a limited time starting April 17, which blends the rainbow-colored breakfast puffs for a $2.99 Funfetti-looking milkshake topped with whipped cream.

Burger King’s Froot Loops Shake

Kid-favorite (and likely cavity-causing) cereals are having a moment, with Ben & Jerry’s cereal milk series of ice cream also hitting freezers recently. The flavors include “Fruit Loot,” which samples Fruity Pebbles, as well as “Frozen Flakes” (Frosted Flakes) and “Cocoa Loco” (Cocoa Pebbles), and stirs the cereal bits into sugary milk-flavored ice cream.

But Japanese Starbucks cafes are raising the candy bar by putting pie a la mode in a cup to celebrate cherry blossom season.

The American Cherry Pie Frappuccino is only available in Japanese Starbucks cafes for a limited time. (Starbucks)

The American Cherry Pie Frappuccino ditches the traditional plastic cone topper for an edible pie crust dome, which caps the blended vanilla cream beverage mixed with cherry sauce and a kiss of whipped cream for just under $6. You’re supposed to break up the pie crust with your straw before stirring the pieces into the creamy vanilla and cherry compote mix below. This sticky mess is available at Japanese stores beginning April 13.

Fast food chains have been getting gutsy about all kinds of stomach-busting snacks lately. Krispy Kreme is making its glazed doughnuts even more addictive by dipping them in – and filling them with – Ghirardelli chocolate in mint chocolate and sea salt caramel flavors.

Or dig into Outback’s 3,080-calorie sirloin-topped cheese fries if you dare.