Rev. Al Sharpton took aim at President Trump’s political acumen — and love of fast food — Monday during a speech meant to commemorate Dr. Martin Luther King Jr., when he joked Trump should up his McDonald’s order to three Big Macs.

The quip from the formerly obese minister came after he lauded New York Sen. Kirsten Gillibrand as a “national celebrity” who gets things done.

“Trump, you better get your best gloves out and order three big Macs rather than two,” Sharpton joked Monday during the Harlem event in honor of MLK.

The president’s typical order is “two Big Macs, two Filet-O-Fish, and a chocolate malted,” according to a recent book written by former aides Corey Lewandowski and David Bossie.

Another new tell-all, “Fire and Fury: Inside the Trump White House,” revealed the known germophobe prefers McDonald’s because he fears being poisoned.

Sharpton, who once weighed over 300 pounds and enjoyed fried chicken with every meal, has kept off the weight since 2014 by avoiding fast food and eating clean.