The Trump administration is 'going to war against added sugars' and emphasizing long-demonized saturated fat in a new set of dietary guidelines.

Health secretary Robert F Kennedy Jr said Wednesday that the newest version of the dietary guidelines, which will run through 2030, will emphasize saturated fats, a type of dietary fat that helps provide the body with energy. 

Found mostly in animal-based foods like cheese, red meat and butter, decades of research have shown it causes LDL (bad) cholesterol to build up and form plaques in the arteries, making it harder for blood to flow.

Over time, this can lead to heart disease, America's number one killer that takes nearly 1million lives every year, as well as obesity.

The previous dietary guidelines, which are updated every five years, recommended a person get no more than 10 percent of their daily calories from saturated fat. This means someone following a standard 2,000-calorie eating plan should have no more than 20 grams of saturated fat per day.

The American Heart Association is even stricter, stating just six percent of a person's calories should come from foods high in saturated fat, or just 120 calories a day.

The current saturated fat recommendation has stayed the same, but Kennedy, called previous guidance 'antiquated,' instead shifting the blame for America's chronic disease epidemic on ultra-processed foods and artificial dyes.

He said in a press briefing Wednesday: 'Today the lies stop. We are ending the war on saturated fats.' 

The guidelines warn Americans should steer clear of all sugar-sweetened beverages like fruit juice and soda and that children should avoid added sugars until age 10, much later than the previous recommendation of age two. 

It also warned against foods high in refined carbohydrates like rice, oats and bread.

Physicians and dietary experts told the Daily Mail that while small amounts of saturated fat are unlikely to cause lasting effects, encouraging Americans to eat higher amounts could worsen already increasing rates of heart disease and obesity, contradicting Kennedy's 'Make America Healthy Again' agenda.

Anna Schraff, nutrition coach and founder of Mediterranean for Life, told the Daily Mail: 'The bottom line is that the most rigorous scientific evidence consistently shows higher saturated fat intake is linked with increased risk of heart disease, heart attacks, strokes, and dementia.