SLOT: Full Definition
What is dyslipidemia?
Dyslipidemia — sometimes called high cholesterol or hyperlipidemia — refers to abnormal levels of fats (lipids) in the blood. The classic pattern includes elevated LDL cholesterol, elevated triglycerides, and/or low HDL cholesterol. Each piece carries different cardiovascular implications, and modern interpretation also looks at non-HDL cholesterol, apolipoprotein B (ApoB), and lipoprotein(a) for a more accurate risk picture.
Dyslipidemia is rarely a disease unto itself. More often it's a downstream sign of metabolic dysfunction, thyroid disease, hormonal shifts, or lifestyle factors that, once addressed, often shift the lipid panel substantially.
What causes dyslipidemia?
Common root drivers include:
- [Insulin-resistance] and Metabolic Syndrome
- [Hypothyroidism] and Hashimotos Thyroiditis — slow metabolism raises LDL and triglycerides; this is one of the most under-recognized causes in women
- Perimenopause and menopause — declining estrogen shifts the lipid profile unfavorably
- Excess refined carbohydrate, sugar, and alcohol intake
- [Polycystic-ovary-syndrome]
- [Non-alcoholic-fatty-liver-disease]
- Sedentary lifestyle and poor sleep
- Genetics — including familial hypercholesterolemia and elevated lipoprotein(a)
- Certain medications — corticosteroids, some antipsychotics, beta-blockers
Women are often told their cholesterol is "a little high" without anyone investigating why.
How is dyslipidemia diagnosed?
Diagnosis starts with a fasting lipid panel including total cholesterol, LDL, HDL, and triglycerides. At Modern Thyroid Clinic, we typically add ApoB, lipoprotein(a), hs-CRP, fasting insulin and glucose, HbA1c, and a complete thyroid panel — because the answer to "why are these numbers off?" almost always lives in those values. We also factor in family history, perimenopausal stage, and overall cardiometabolic risk before deciding on any intervention.
How is dyslipidemia treated?
A root-cause approach asks first: what's driving this? Common levers include:
- Treating coexisting Hypothyroidism — often dramatically improves LDL and triglycerides
- Reversing insulin resistance through diet, exercise, and targeted therapies
- Mediterranean-style nutrition — fiber, omega-3s, monounsaturated fats, lean protein, and far less refined carbohydrate and added sugar
- Resistance and aerobic exercise
- Weight reduction when relevant
- Sleep, stress, and alcohol moderation
- Targeted supplements — fish oil for high triglycerides, plant sterols, Berberine in selected cases
- Statins or other lipid-lowering medications when risk is high enough or lifestyle alone isn't sufficient
MTC partners with a woman's primary care or cardiology team when medication is appropriate. We don't oppose statins — but we make sure no one is treated for high cholesterol while an unaddressed thyroid problem keeps driving the numbers.
Common symptoms
Common questions
Can hypothyroidism cause high cholesterol?
Yes — significantly. Thyroid hormone helps the liver clear LDL cholesterol from the bloodstream. When thyroid hormone is low, LDL rises, triglycerides often rise, and HDL may fall. Women with [hypothyroidism] or [hashimotos-thyroiditis] frequently see cholesterol numbers improve dramatically once thyroid hormone is properly replaced. This is one of the strongest reasons MTC checks a complete thyroid panel before assuming a lipid problem is purely dietary or genetic.
Does cholesterol matter as much for women as for men?
Yes — and arguably more. Women are often under-screened, under-treated, and present with cardiovascular disease later but with worse outcomes. Lipoprotein(a) and ApoB are particularly useful for refining cardiovascular risk in women, especially around perimenopause when lipids shift. Don't accept a vague 'a bit high' answer; insist on a thoughtful interpretation that includes thyroid, metabolic, and hormonal context, plus family history.
Do I have to take a statin?
Not always — and not as a first step in many women. The right answer depends on overall cardiovascular risk, family history, ApoB and lipoprotein(a), and how much lifestyle and underlying-driver treatment can move the numbers. For some women, treating thyroid disease, reversing insulin resistance, and adopting a Mediterranean-style pattern is enough. For others — particularly those with significantly elevated risk — a statin meaningfully reduces heart-attack and stroke risk. The decision should be individualized with your clinician.
Think you might be dealing with this?
Talk to a Modern Thyroid Clinic specialist about your symptoms, labs, and next steps.
Book a Discovery CallThis content is for educational purposes only and is not medical advice. Consult a licensed clinician for diagnosis and treatment. Content on this page does not create a doctor-patient relationship with Modern Thyroid Clinic.