Cut These 3 Foods to Fix Brain Fog & Fatigue

3 Jul 2025 · 5 min
5:28

Aaron Hartman, MD identifies three dietary causes of brain fog and fatigue: unhealthy oils that stiffen cell membranes, excess carbs that keep you glucose-dependent, and chronic dehydration. He maps how long it takes to shift from burning glucose to ketones (18 hours for him) and recommends drinking half your body weight in ounces of water daily, plus adding healthy fats like olive oil and ghee.

Questions this video answers

Trans fats, seed oils, hydrogenated/partially-hydrogenated oils; examples: margarine, Crisco, corn germ oil, canola (rapeseed) and soybean oil.

Three to four tablespoons (examples: extra virgin olive oil, avocado oil, ghee, butter; phospholipids like Phospholin recommended).

~0–6 hours: burn recent meal glucose; ~6–8 hours: begin using glycogen stores; ~12–16 hours: shift to fat/ketone use; ~18 hours: presenter typically reaches significant ketosis when fasting.

Consume roughly half your body weight in ounces of water per day (example: 150 lb → ~75 oz).

About two cups of water are recommended for each cup of a caffeinated beverage (coffee or tea).

Chapters

More from Aaron

53:04
youtube.com

Too Many Gut Fixes Can Undo Your Healing. What Helps It Last | Dr. Sabine Hazan

4d ago
6:54
youtube.com

Sometimes I Treat It Before I Know What Caused It

1w ago
45:33
youtube.com

Your Gut Keeps Its Own Age, and It Can Get Younger

1w ago
6:53
youtube.com

Lyme Is Supposed to Be Diagnosed Without a Blood Test

2w ago
1:18
youtube.com

Women’s Heart Attack Symptoms Differ From Men’s 95% of the Time — Only 30% Have Chest Pain #shorts

2w ago
1:42
youtube.com

Heart Disease Kills More Women Than All Cancers Combined — 80% of Cardiac Research Is on Men #shorts

2w ago
2:03
youtube.com

Women’s Physiology Was Systematically Ignored in Drug Research — The Consequences Are Still #shorts

2w ago
1:03:14
youtube.com

Why Cancer Comes Back Somewhere Else with Dr. Nasha Winters

2w ago
7:10
youtube.com

How Mold Became Too Common to Take Seriously

3w ago
2:37
youtube.com

It Took the FDA 20 Years to Realize Women Need Half the Dose of Ambien #shorts

3w ago
1:32
youtube.com

Until 1993, Women Were Banned From Clinical Drug Trials — Then Those Drugs Were Prescribed t #shorts

3w ago
See all content