Before You Eat Breakfast! - #1 Nutrition Mistake People 40+ Make Causing Disease, Fat & Inflammation

He says many common breakfast foods (like cereals, croissants, and plain oats) are low in protein, which can fail to replenish amino acids after the overnight fast and may leave people hungry again mid-morning.

He describes protein as highly satiating and references the “protein leverage hypothesis,” arguing that people may keep eating (often reaching for sugary snacks) until they meet a personal protein threshold.

He argues ultra-processed foods are often low in protein and not very satiating, and adds that eating protein can slow gastric emptying, spreading absorption over time and potentially reducing big carbohydrate/sugar spikes and crashes.

He says proteins are not only for muscle; they form or support many structures and functions (including enzymes, hormones, transport molecules like hemoglobin, collagen, skin, hair, and cell receptors). He also notes only about a quarter of dietary protein goes to skeletal muscle.

He says the most common issue he sees with aging is frailty, and links sarcopenia (muscle wasting/reduced strength) to higher risk—especially after falls and time off one’s legs. He adds that resistance training is a bigger driver of muscle protein synthesis than amino acids alone, but both matter.