Healthy Middle-Aged Women Study — Low Fat Problem

The link between low cholesterol and low mood. 

There was a time when I only ate salads, thinking I was doing the right thing. But I was constantly cold, moody, and starving. I wasn’t thriving—I was barely functioning. Once I gave my body real food and real fuel, everything changed.

Now we have the science to back that up.

“Low Fat” Leads to Low Mood

A study out of Stockholm looked at 300 healthy women ages 31 to 65. The researchers were expecting a heart health connection—but what they found was surprising.

Women with the lowest cholesterol levels were significantly more likely to report depressive symptoms. They also reported lower social support—meaning they felt more isolated and disconnected.

Even after accounting for things like smoking, weight, exercise, and menopause, the pattern stayed the same.

Your brain needs fat (and so does your mood)

Cholesterol isn’t just about arteries and blood tests. It’s a key building block for your brain and hormones. It helps your body make vitamin D, support memory, and regulate mood. When cholesterol is too low, those systems break down.

You can’t outwillpower bad biochemistry.

And you can’t shame yourself into a better mood when your body is running on fumes.

my own wake-up call about fat

There was a time when I only ate salads, thinking I was doing the right thing. But I was constantly cold, moody, and starving. I wasn’t thriving—I was barely functioning. Once I gave my body real food and real fuel—yes, including fat—everything changed.

My energy returned. My mood lifted. And I stopped feeling like I was in survival mode all the time.

why this hits women hardest

Many women are told to “eat clean” or “watch fat.” But if that means skipping eggs, red meat, or butter—your body pays the price.

Low cholesterol isn’t always a sign of health. Sometimes, it’s a red flag.

You feel anxious. You can’t sleep. You cry more easily—or just feel flat.

That’s not weakness. That’s your body asking for help.

How to start fixing it, simple steps, noticeable improvements. 

You don’t need to overhaul your entire diet. Just start by adding back the building blocks your body has been missing.

Try this:

1. Add one egg yolk a day
   Full of healthy fat, vitamin D, and cholesterol your brain can use.
2. Eat red meat once a week
   Iron, B12, and cholesterol to support mood and energy.
3. Get rid of seed oils, canola oils, olive oil spreads, vegetable oils.
   Instead, use butter, ghee or beef fat.
4. Track your feelings—not just food
   Notice how you feel after meals with real fat vs. low-fat meals.

This isn’t a miracle quick-fix — but give it a few weeks, and you’ll be surprised by a lift in your well being.

what this really means

It’s not you—it’s your environment.

Your body isn’t broken. It might just be running on empty. And once you give it the right fuel—especially the cholesterol it actually needs—things can shift.

Less overwhelm. Less sadness. More connection, inside and out.

You don’t need to do it perfectly. You just need to do it differently.

Yes, healthy animal fat is the move—see these two posts I wrote about on Alzheimer’s and dementia and cholesterol.

Cholesterol and Dementia Study — Nutrition for Brain Health
High Carb, Low Fat, Alzheimer’s Disease Study — My Nutrition Tips