# Nutrition in peripheral arterial disease
Blood fats and cholesterol
In peripheral arterial disease, blood vessels in the legs and arms are narrowed by vessel deposits. What you eat affects the substances in your blood that fuel these deposits or help prevent them.
**LDL cholesterol (the 'bad' cholesterol)** plays an important role. Research shows that a diet with less saturated fats and trans fats – for example, by eating less fatty meat, full-fat dairy products and fried food – helps lower LDL cholesterol.
ProveniIncluded in official guidelines, or approved by EMA or FDA
**HDL cholesterol (the 'good' cholesterol)** protects against vessel deposits. Research suggests that regularly eating unsaturated fats – from olive oil, nuts, avocado and fatty fish – can raise HDL cholesterol.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Regular physical activity also contributes to this.
**Triglycerides** are another type of fat in the blood that, at high concentrations, increases risk. Limiting sugar and foods with many refined carbohydrates is seen as a way to lower triglycerides.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Salt and blood pressure
High salt intake increases the risk of high blood pressure, which speeds up vessel deposits. Foods high in salt include smoked meat, cheese, bouillon, bread and processed snacks. Limiting salt – both from the salt shaker and from foods – is recommended.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Your healthcare provider or dietician can indicate what salt level is appropriate for you.
Vital nutrients
Zinc Recent studies examine the role of zinc in heart and blood vessel health. Zinc deficiency is linked to unfavourable changes in blood fats and inflammation markers. Zinc is found in meat, fish, nuts, seeds and grains.
ResearchediPositive results in clinical studies, not yet standard treatment
Taking zinc supplements on your own is not recommended; discuss this with your doctor or dietician if you have concerns.
Omega-3 fats Fatty fish (salmon, mackerel, sardines) contains omega-3 fats that can reduce inflammation processes. Research points to a link between omega-3 intake and better inflammation and mood balance in the body.
ResearchediPositive results in clinical studies, not yet standard treatment
Plant-based sources such as flaxseed, nuts and certain oils also contain a precursor to omega-3 (ALA), although the body converts this less efficiently than animal-based omega-3.
Arginine and homocysteine L-arginine is an amino acid that research is examining to see if supplementation can help keep blood vessels supple in vessel disease. So far, the results are mixed and insufficient for firm recommendations.
ExperimentaliOngoing in study setting, outcome still unknown
High homocysteine (a naturally occurring amino acid) is linked to increased vessel risk. This can be influenced with certain nutrients (including vitamin B12, folate, B6). These vitamins are found mainly in vegetables, grains and meat.
Weight and muscle mass
Overweight increases the burden on the heart and blood vessels. Research shows that regular physical activity and healthy eating help maintain weight and preserve muscle mass – which in turn benefits blood circulation.
ProveniIncluded in official guidelines, or approved by EMA or FDA
In peripheral arterial disease, muscles in the legs and feet can waste away. Adequate protein – from meat, fish, dairy products, legumes and nuts – supports muscle recovery during physical activity and rehabilitation.
ResearchediPositive results in clinical studies, not yet standard treatment
Eating pattern
A pattern that receives much attention is the Mediterranean diet: plenty of vegetables, fruit, whole grains, nuts, olive oil, fish and limited red meat. This pattern helps influence blood pressure, blood fats and body weight in a favourable direction.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Nutrition circumstances and medications
Some medications for vessel disease can affect nutrition:
- **Blood thinners** (for example, warfarin) can be affected by vitamin K. Vitamin K is found in many green vegetables. This does **not** mean you should avoid vegetables, but rather that you should keep your intake regular, not fluctuating.
- **Certain blood pressure lowering drugs** and **cholesterol medications** can cause side effects on digestion or taste. This can affect food choices.
Always discuss dietary changes with your doctor or treatment team, especially if you are taking medications.
Supplements
The use of individual supplements (pure L-arginine, creatine, extra zinc or vitamin combinations) is currently still being investigated for peripheral arterial disease. To date, the evidence is insufficient for a strong recommendation.
ExperimentaliOngoing in study setting, outcome still unknown
Moreover, supplements can interact with your medications. Always check this with your pharmacist or doctor before using them.
Inflammation and nutrition
Peripheral arterial disease is accompanied by chronic inflammation in the blood vessels. Foods rich in plant substances – vegetables, fruit, whole grains, nuts – have anti-inflammatory properties.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Conversely, foods high in refined sugars, trans fats and processed meat can actually increase inflammation.
Practical points
- A dietary pattern that is good for your heart is also good for peripheral arterial disease.
- Regular, healthy eating helps more than individual supplements.
- Plenty of vegetables, fruit, whole grains, fish, nuts and olive oil form a good foundation.
- Limiting salt, saturated fats and sugar helps blood pressure and blood fats.
- Drinking enough water also helps – unless your doctor has given you instructions otherwise.
**For personal dietary choices, questions about interactions with medications, or help with weight management: ask for a referral to a dietitian.**
---
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._