lipid.sitePortfolio diet
Stacks four food groups that each lower LDL-C a little (nuts, plant protein like soy, sticky soluble fiber, and plant sterols) so the effects add up.
LDL-C effect in studiesAbout 13 to 17% lower LDL-C in trials
This section shares information about dietary patterns and the research on them. lipid.site doesn't recommend any particular diet, and nothing here is medical or nutrition advice for you. Talk with your clinician or a registered dietitian before making big changes, especially if you have diabetes, kidney disease, an eating-disorder history, are pregnant or breastfeeding, or take blood thinners or other daily medicines. Food changes can work alongside cholesterol medicines; they usually don't replace a medicine your clinician prescribed.
Eat more
- Nuts, about a handful a day (almonds, walnuts, peanuts)
- Soy foods and other plant protein: tofu, soy milk, edamame, beans, lentils
- Sticky (viscous) fiber: oats, barley, psyllium, okra, eggplant, beans
- Foods with added plant sterols, or a sterol supplement as discussed with a clinician
- Vegetable oils such as olive or canola in place of butter
Eat less
- Butter, cream, cheese and fatty meats
- Processed meats
- Refined snacks and sweets
A typical day
- Breakfast: oatmeal cooked in soy milk, topped with berries and chopped almonds
- Lunch: lentil and barley soup with a side salad dressed in olive oil
- Dinner: tofu and eggplant stir-fry with okra over brown rice; a sterol-fortified drink or spread if you use one
Who it may suit
People who want the biggest LDL-C drop food can usually offer and don't mind eating plant-forward. Works for vegetarians and vegans, and omnivores can keep some fish, eggs or lean meat.
Things to watch
- Psyllium and other fiber supplements can block absorption of some medicines; the psyllium label advises taking other medicines 2 hours before or after.
- Increase fiber gradually and drink water to limit gas and bloating.
- Soy can reduce levothyroxine absorption; ask about timing.
- Tree nut, peanut or soy allergy.
- Plant sterols are not advised for people with sitosterolemia (rare).
Tell me more
Pooled controlled trials found the Portfolio diet lowered LDL-C by about 17% compared with a standard heart-healthy diet, with high certainty. In a 6-month real-world trial where people bought their own food, LDL-C fell about 13% (about 24 to 26 mg/dL) versus 3% on a low-saturated-fat diet. An early metabolic trial with all food provided found an LDL-C drop close to a starting-dose statin.
Evidence strength: strong means several good trials agree; moderate means trials agree but are small, short or varied; limited means a few small trials or mostly indirect evidence. LDL-C numbers are averages from studies. Your own result can be larger, smaller or zero.
- Cost: mostly cheap staples (oats, beans, tofu); nuts and sterol products add cost.
- Effort: moderate. It takes a few weeks to learn the four pillars, then it runs on repeat meals.
- Eating out: easiest at Asian, Indian and Middle Eastern restaurants (tofu, dal, chickpeas).
- In the trials, people who hit more of the four targets saw bigger drops.
People like that it adds foods instead of banning them, but say hitting all four pillars daily takes planning.
Themes from public online discussions. One person's experience can differ from yours.
Combines well with
Sources
- Chiavaroli L, et al. Portfolio dietary pattern and cardiovascular disease: systematic review and meta-analysis of controlled trials. Prog Cardiovasc Dis. 2018;61(1):43-53. PMID 29807048
- Jenkins DJA, et al. Effect of a dietary portfolio of cholesterol-lowering foods given at 2 levels of intensity of dietary advice. JAMA. 2011;306(8):831-839. PMID 21862744
- Jenkins DJA, et al. Effects of a dietary portfolio of cholesterol-lowering foods vs lovastatin. JAMA. 2003;290(4):502-510. PMID 12876093
Your results will vary
Diet affects LDL-C differently from person to person. Two people on the same plan can see very different results, and genetics (including familial hypercholesterolemia and Lp(a)) set a floor that food alone may not move. The only way to know what a change does for you is to recheck your labs, usually after 6 to 12 weeks of sticking with it. Log your results here to see the trend.
Medicines still matter
If your clinician has recommended a statin or other medicine, changing your diet works together with it. Many people need both to reach their goal.
Reviewed by Kaustubh Dabhadkar, MD, on October 20, 2026. General education from published research. lipid.site is not a healthcare provider.