Dr Eric Berg explains 'brain fog at 2pm' phenomenon - and how to get rid of it

Dr Eric Berg explains 'brain fog at 2pm' phenomenon - and how to get rid of itDr Eric Berg said it came down to one key thing which we can all changeNewsHoward Lloyd Regional content editor14:15, 15 Apr 2026This article contains affiliate links, we will receive a commission on any sales we generate from it. Learn moreView ImageDr Berg explained why so many of us struggle for energy just after lunch(Image: Getty)A medical professional has shed light on why so many of us struggle to focus during the early afternoon. Commonly referred to as brain fog, countless individuals find themselves battling this phenomenon as the hours tick by.It can leave sufferers feeling exhausted and unable to complete everyday responsibilities, whether work-related or routine tasks. Respected physician Dr Eric Berg has revealed the reasons behind this widespread complaint.Dr Berg, who specialises in ketosis and intermittent fasting, regularly posts educational content across his social media channels. He revealed that the cause of brain fog 'by 2pm' was identical to why so many people experience bloating after meals, aching joints and skin breakouts.He asked: "Tired after every meal? Brain fog by 2pm? Bloated after eating? Joints that ache for no reason? Skin that's always breaking out? We've accepted this as normal, but it's not normal. It's your body asking for help. Ultra-processed food created this, real food can reverse it."Content cannot be displayed without consentHe went on to say: "If you've ever cut your hand or rolled your ankle, you've experienced inflammation firsthand - the redness, the swelling, the pain. That's your immune system doing exactly what it's supposed to do."But that same process can happen deep inside your body, in ways you can't see. And when it doesn't shut off, chronic inflammation can leave you bloated, foggy, tired, and achy - and increase your risk of major health issu...