When we’re exploring how diet affects health, we often focus on heart health, gut health, or brain health, since those organs have such vast ripple effects around the body. But when was the last time you turned your attention to your feet?

"The connection between diet and lower limb health is often overlooked, as people don't think about it until something is wrong or hurts," admits Jordan Langhough, R.D., a Charlotte, North Carolina-based registered dietitian and certified personal trainer. "But by the time you're dealing with a gout attack or chronic swelling, dietary patterns have usually been working against you for years."

That’s the bad news. The good? Both Langhough and Jessica M.Knight, D.P.M. (a podiatrist with Endeavor Health Medical Group in Elmhurst, Illinois) agree that the body responds well — and quite quickly — to nutrition changes. In fact, it’s possible to eat your way to less or no joint pain within one to two weeks.

Read on to study up on the diet mistakes you might be making that could be quietly putting your lower limbs at risk for aches and pains. Then stick around for expert advice about how to modify your menu to make your podiatrist proud — and promote healthy, pain-free legs, ankles, and feet.

How Does Diet Affect Legs and Feet?

What we eat directly impacts chronic inflammation levels throughout the body, including in the lower limbs, Langhough confirms. Our diet can also affect fluid balance and circulation.

"Your feet and ankles are often the first place these issues show up because gravity pulls fluid downward," Langhough tells us. "If your body is retaining water or dealing with chronic inflammation, you'll often feel it from the knees down first."

According to Dr. Knight and Langhough, conditions like gout are almost entirely driven by diet. Gout is a form of arthritis caused by excess urate. Needle-shaped crystals build up in the joints, leading to painful flare-ups that start in the legs and feet, and progress to other parts of the body, if left untreated. Other potential leg, ankle, and foot issues, including swelling or nerve pain, are made significantly worse by poor eating habits as well. Beyond triggering these frustrating symptoms, any of these conditions can significantly impact mobility, comfort, and overall quality of life.

That sounds like a big bummer, true. But it’s actually a boon if you ask Langhough. Unlike many other health conditions that rely on extensive, expensive, and invasive treatments, "you're in control of your diet. Small changes to what you eat can help alleviate the aches related to gout and lower extremity swelling." (All that being said, it’s still important to seek treatment from your own podiatrist, doctor, and dietitian and tackle your symptoms together following their personalized guidance.)

5 Eating Habits to Avoid

Curious if you might be eating your way to achy legs and feet? The experts tell us these are the most common culinary causes…

High Sodium Intake

Most of us savor far more salt than we should — often, without realizing it. Whether it’s in pizza, deli meat, canned soup, condiments, or shaken on top for seasoning purposes, Americans consume 3,300 milligrams of sodium per day on average. That’s 43 percent more than the recommended 2,300 milligrams. "Excess sodium causes the body to retain water, and that fluid tends to pool in the lower legs and ankles by the end of the day," Langhough explains.

Too Many Purine-Rich Foods

Purines are naturally found in our cells and in many foods, so we definitely don’t want to — and technically can’t — eliminate them. They help support our energy levels and play a role in our body’s ability to build DNA. Still, when we break down purines, we produce uric acid as a byproduct. In normal quantities, our kidneys can flush this out through our urine. But when it becomes too much to handle, uric acid can build up in the blood, causing those painful pointy crystals to build up in our joints. So how do you know if you might be packing in the purine? Ponder your protein sources. Langhough tells us the foods highest in purines include red meat, organ meats (like liver and sweetbreads), shellfish, and certain fish, such as sardines and anchovies.

Excessive Alcohol

There’s also one category of drinks that are also potent purine sources: alcohol. Beer, wine, and liquor are all high in purines. Another drawback of that drink? Alcohol tends to be dehydrating, which "makes the body hold onto fluid and may impair kidney function over time, reducing the body's ability to flush excess uric acid and waste," Langhough says.

Ample Added Sugars

Many sugary foods and drinks contain fructose, including soda, fruit juice, and many packaged processed foods like cakes, cookies, and ice cream. "Fructose raises uric acid levels the same way alcohol raises uric acid," Langhough verifies. High sugar intake also promotes chronic inflammation. Over time, this can contribute to insulin resistance, which impairs circulation and nerve health in the lower limbs.

Dehydration

Most people think swelling comes from being overhydrated. In reality, it boils down to being deficient in H2O. "When someone is consistently under hydrating, the kidneys hold onto fluid to compensate, and it also concentrates uric acid in the blood, raising the risk of gout flares," Langhough says.

How To Eat To Support Healthy Feet and Legs

Now that we’re well-versed in what not to do, let’s get to the fun part: how to feast to take care of your feet, ankles, and legs.

Dr. Knight and Langhough recommend:

Prioritizing Anti-Inflammatory Foods

An anti-inflammatory eating plan like the Mediterranean diet can lead to less chronic inflammation — which means less pain and swelling in the joints and tissues of the lower leg and throughout the body. The experts suggest stoking your menu with plenty of anti-inflammatory foods like fatty fish, leafy greens, berries, citrus fruit, olive oil, avocado, and nuts.

Slashing Sodium Intake

Most of our salt intake doesn’t come from the shaker. Instead, the biggest sources of sodium in our diet include packaged foods and restaurant meals. "Cutting back on sodium, with a goal of around 2,000 milligrams per day, can reduce fluid retention, which directly eases swelling in the lower legs and ankles," Langhough notes. Try a bowl of oatmeal instead of a bagel and lox for breakfast, try tzatziki and veggies instead of chips as a side with lunch, and stir up your own pizza sauce to make a homemade pie rather than ordering delivery.

Pumping Up Your Potassium Intake

Think of potassium like the yin to sodium’s yang. These electrolytes work together to control our blood volume. "Potassium counteracts sodium's fluid-retaining effects," Langhough says. As you shift your diet to become lower in sodium over time, it can also be helpful to pack in more foods high in potassium, including bananas, sweet potatoes, beans, lentils, avocados, salmon, yogurt, and spinach. (It’s handy that there’s quite a bit of overlap with the anti-inflammatory eats.)

Limiting Processed and Ultra-Processed Foods

"Ultraprocessed" doesn’t necessarily mean unhealthy. Still, many foods that fit this category are higher in sodium, added sugars, and refined carbohydrates compared to their less-processed counterparts, Langhough explains. "Cooking more meals at home is one of the easiest ways to move the needle here," she says. (Psst…we can help with that!)

Staying Hydrated

If you imbibe, cut back on the alcohol consumption and sip on more water instead. Yes, club soda and coffee count. "Water helps the kidneys flush uric acid and excess sodium, which are two of the biggest dietary drivers of lower limb problems," Langhough tells us. "Aim for consistent fluid intake throughout the day, not just when you're thirsty." If plain H2O feels a little too ho-hum, welcome in some spa vibes with Lemon-Infused Water, Cucumber-Infused Water or Grapefruit-Infused Water.

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