I read a lot of research. Most of it doesn't change how I talk to my patients, but every so often a study comes along that I want everyone in my practice to see. This is one of them.
What the researchers looked at
A team of researchers followed 5,520 adults aged 50 and older for six years. They were part of the English Longitudinal Study of Ageing, one of the most respected long-term health studies out there. The researchers wanted to answer a simple question: what happens when someone carries extra weight around the middle and has low vitamin D?
They sorted everyone into groups based on two things: waist size (belly fat or not) and vitamin D level (enough, a little low, or very low). Then they tracked who was still alive six years later.
What they found
Compared with people who had a healthy waist and enough vitamin D:
Healthy waist, a little low on vitamin D: 91% higher risk of death
Healthy waist, very low vitamin D: 81% higher risk of death
Belly fat, enough vitamin D: 47% higher risk of death
Belly fat, a little low on vitamin D: 50% higher risk of death
Belly fat and very low vitamin D: about 2.2 times the risk of death, the highest of any group
Two things jumped out at me. First, low vitamin D was a big deal even for people without belly fat. Being slim doesn't mean you're covered. Second, when both problems showed up together, the risk was the highest of all.
Why this matters
The researchers explained it this way: extra fat around the middle keeps your body in a state of low-grade inflammation. It also makes it harder for your body to handle blood sugar. Vitamin D helps your immune system keep that inflammation in check. When you're low on it, there's nothing holding the inflammation back.
I talk about inflammation a lot in my office, and for good reason. Long-term inflammation and blood sugar problems sit underneath most of the chronic health problems I see. Your body needs certain raw materials to keep inflammation under control, and vitamin D and omega-3 fats are two of the most important ones.
Here's the problem: most of us don't get enough of either. We work indoors, we wear sunscreen, and we don't eat much wild fish. Here in Fort Mill we get plenty of sunshine, but most people still come up short, especially in the fall and winter.
What you can do
Know your number. Ask your doctor to check your vitamin D level at your next blood test. It's a simple test, and it's the only way to know where you stand.
Supplement wisely. For most people, getting enough vitamin D and omega-3s means taking a good-quality supplement. The vitamin D I recommend to my patients is Innate Choice Vitamin D, and we keep it in stock right here at the office. Grab a bottle at the front desk, or ask me at your next visit and I’ll help you figure out the right amount for you.
Keep moving. Regular movement is one of the best ways to reduce belly fat and inflammation. Walk, lift, play, whatever you'll actually keep doing.
Get outside. A little midday sun on bare skin helps your body make its own vitamin D.
Eat real food. Cutting back on sugar and processed foods helps your body manage blood sugar and fight inflammation.
The bottom line
Low vitamin D isn't something to shrug off, and it matters even more if you're carrying extra weight around your middle. The good news is that both are things you can do something about.
If you have questions about this study, or want to talk about where to start, bring it up at your next adjustment. And if it's been a while since we've seen you, book your next visit here.
Take it easy…but go take it!
Dr. Rob
Source: Milliati et al. (2026). Does the Combination of Abdominal Obesity and Vitamin D Deficiency Increase the Risk of Death in Individuals Aged 50 or Older? Evidence from the ELSA Study. Diabetes, Obesity and Metabolism, 28:6607–6617. Research summary courtesy of Dr. James Chestnut, The Wellness Practice.
This article is for general education and isn't a substitute for personal medical advice. Talk with your healthcare provider before starting any new supplement.