Total Cholesterol / HDL Ratio

Total cholesterol/HDL ratio is an important marker that differentiates between pro-inflammatory and anti-inflammatory cholesterol subtypes. A higher ratio indicates that there is a higher proportion of pro-inflammatory cholesterol subtypes; whereas a lower ratio indicates that there is a higher proportion of anti-inflammatory cholesterol subtypes

This ratio captures two directions at once: lowering the “bad” part (mostly LDL and other atherogenic particles inside total cholesterol) and lifting the “good” part (HDL). In long-term studies, the ratio predicts cardiovascular risk better than either number alone, particularly as we track your results across years (1). Improving the ratio usually means fewer atherogenic particles circulating, better reverse-cholesterol transport, and healthier arteries.

Refer to sections on lifestyle changes on LDL, HDL, and triglycerides for more information on lifestyle changes that can improve this ratio.

• Move with a plan: Regular aerobic exercise nudges HDL up. A meta-analysis found an average +2.5 mg/dL (≈0.065 mmol/L) rise in HDL, with benefits appearing from about 120 minutes per week, and every extra 10 minutes per session linked to a further ~+1.4 mg/dL HDL increase. Higher HDL improves the ratio (2).
  Try this: Build two longer sessions (e.g., brisk walking, cycling, swimming) and add a short third; focus on session duration more than intensity.
  

• Add plant sterols/stanols: Naturally in nuts, seeds and plant oils, or in fortified foods. Across 124 trials, 0.6–3.3 g/day lowered LDL by ~6–12%, improving the ratio even if HDL does not change much (3).
  Try this: A daily sterol/stanol-fortified serve (check labels for grams per serve), alongside a plant-forward meal.
  

• Use viscous soluble fibre daily: Soluble fibres reduce intestinal cholesterol absorption. Classic meta-analysis data show roughly 0.13 mmol/L (~5 mg/dL) reductions in LDL from ~3 g/day of oat β-glucan, with larger intakes giving more benefit, which improves the ratio (4).
  Try this: 2–3 tablespoons of psyllium husk in water or yoghurt, or a hearty bowl of oats/legumes most days.
  

• Time-restricted eating (TRE) or intermittent fasting (IF): Recent umbrella reviews suggest IF can lower total and LDL cholesterol and raise HDL in people with overweight or obesity, supporting a better ratio (5).
  Try this: A consistent 10–12-hour eating window most days (for example, 8 am–6 pm), without changing what you eat at first.
  

• Fat quality swap: Shift from butter and fatty processed meats toward extra-virgin olive oil, nuts, seeds and oily fish. This tends to lower LDL while maintaining HDL, improving the ratio over months. Combine with plenty of colourful vegetables to support HDL function (3).
  

• Bonus lifestyle levers that compound over time:
  • Quit smoking to remove a common HDL-lowering trigger,
  • Sleep regularly (consistent bed/wake times) to support healthier lipid patterns,
  • NEAT (non-exercise activity) like standing and walking breaks every hour to improve post-meal lipid handling.

• <3.5: optimal

• 3.5–5: slightly elevated

• >5: elevated

1. Lipid Panel with Total Cholesterol: HDL Ratio – University of Rochester Medical Center (URMC).

2. Kodama S, et al. Effect of Aerobic Exercise Training on Serum Levels of HDL-C: Meta-analysis. JAMA Internal Medicine.

3. Ras RT, et al. LDL-cholesterol-lowering effect of plant sterols and stanols across different dose ranges: meta-analysis of RCTs. British Journal of Nutrition.

4. Brown L, et al. Cholesterol-lowering effects of dietary fibre: meta-analysis. American Journal of Clinical Nutrition.

5. Huo R, et al. Intermittent fasting and health outcomes: umbrella review of meta-analyses of randomized trials. EClinicalMedicine (The Lancet).