What happens if we eat 30 cashew daily?

Cashews are a popular nut that are enjoyed around the world for their sweet, creamy taste and crunchy texture. While cashews can be part of a healthy diet, some people wonder if there are any effects or risks associated with eating a large quantity of cashews every day. This article will explore what happens if you eat 30 cashews per day, looking at the potential benefits and drawbacks.

Nutritional Profile of Cashews

First, let’s look at the nutritional profile of cashews. One ounce or about 18 whole cashew kernels contains:

  • 157 calories
  • 8.6 g fat
  • 2.2 g protein
  • 9.2 g carbs
  • 1 g fiber

Cashews are high in healthy unsaturated fats, with most of the fat coming from oleic acid, the same monounsaturated fat found in olive oil. They also contain magnesium, phosphorus, zinc, iron, and selenium. About 1/3 of the fat in cashews is ALA (alpha-linoleic acid), a plant-based omega-3 fatty acid with heart health benefits.

However, cashews are relatively high in calories and fats compared to other nuts. Thirty whole cashews would contain about 510 calories and 27 grams of fat.

Potential Benefits of Eating 30 Cashews Daily

Eating a 30 whole cashew kernels daily, or about 1 ounce, could offer some potential health benefits:

Heart Health

The unsaturated fats, minerals, antioxidants and plant sterols in cashews may help lower LDL cholesterol and reduce inflammation, protecting against heart disease. The ALA omega-3s also support heart health.

Weight Loss

Despite their high fat content, research shows that regular nut consumption is associated with lower body weight, possibly due to nuts enhancing satiety and balancing blood sugars.

Reduced Cancer Risk

The nutrients and antioxidants in cashews, such as selenium, zinc, and vitamin E, may help lower the risk of developing cancers. Their high magnesium content also helps reduce inflammation.

Improved Blood Sugar Control

The healthy fats and fiber in cashews can help regulate blood sugar levels and insulin sensitivity, especially helpful for those with diabetes.

Better Bone and Muscle Health

The magnesium and potassium in cashews helps build and maintain muscle and bone strength.

Increased Satiety

Cashews are very filling, satisfying hunger for longer periods of time and reducing snacking behavior.

So while high in calories, incorporating a serving of cashews into your diet each day may provide valuable health benefits.

Potential Drawbacks of Eating 30 Cashews Daily

However, there are some potential drawbacks to consider with eating a high amount of cashews regularly:

High in Calories

At 157 calories per ounce, cashews are one of the higher calorie nuts. Consuming 30 cashews would add 510 calories, which could lead to weight gain if it exceeds your daily needs.


Tree nut allergies are common, and cashews can trigger potentially serious allergic reactions in those with a nut allergy.

Toxic Impacts

Cashews contain a resin called anacardic acid that may cause skin irritation, gastrointestinal issues, and other toxic effects when consumed in extremely high amounts. Thirty cashews is unlikely to contain toxic levels, but those with nut sensitivity may react.

Salted Varieties

Many cashews on the market are salted or flavored with other seasonings high in sodium, which may increase blood pressure and heart disease risk. Stick to unsalted, raw cashews.

Aflatoxin Contamination

Cashews may sometimes be contaminated with aflatoxins, carcinogenic substances produced by mold. Proper storage and choosing uncontaminated sources reduces this risk.

Oxalate Content

Cashews contain oxalates that can contribute to kidney stones in those prone to the condition.

To reduce these potential risks, stick to a single 1 ounce serving per day, choose unsalted and unflavored varieties, and consult your doctor if you have allergies or medical conditions. Moderation is key.

How Many Cashews Should You Eat Per Day?

So how many cashews should you really be eating daily? Here are some general guidelines based on your diet and lifestyle:

Standard American Diet

For someone following a typical Western diet high in processed foods and saturated fats, enjoying 1 to 2 ounces of cashews up to 5 times per week can provide health benefits. This equates to about 18-36 cashews per day max as part of a varied diet.

Plant-Based or Vegetarian Diets

On a diet with no animal products, cashews can be a more regular part of protein and healthy fat intake. 2 to 3 ounces of cashews up to 7 times per week may be beneficial, or 24-54 whole cashews per day.

Weight Loss Diets

When cutting calories for weight loss, limit portions to 30-40 cashews 2-4 times per week at most. The high fat content can interfere with deficits needed for weight loss.

High Activity Levels

Athletes, bodybuilders and highly active individuals can incorporate larger portions of nuts to support energy, muscle building and metabolism. Up to 100 cashews or 4-5 ounces daily may be included as part of an overall high calorie diet.

Allergy Sufferers

Those with nut allergies should avoid cashews completely and choose alternate plant-based protein sources and healthy fats from seeds, legumes, avocados and oils.

Following general serving guidelines based on your diet can allow you to enjoy the benefits of cashews while limiting potential downsides. Moderation and variety are key when incorporating nuts into your routine.

Healthiest Ways to Eat Cashews

To get the most nutritional bang for your buck, here are some of the top ways to eat cashews that maximize their health benefits:

Raw and Unsalted

Choose cashew kernels with no added oils, sugars or salt. Raw cashews retain more antioxidants. If roasting, do so lightly at low temperatures.

Sprinkle on Yogurt or Oatmeal

Add chopped cashews to plain, Greek or plant-based yogurts. You can also top your morning oats with crunchy cashew pieces.

Make Nut Milk

Blend soaked, raw cashews with water to make a creamy, nourishing milk alternative to drink or use in recipes.

Cashew Butter

Like peanut butter, you can make smooth cashew butter from blended nuts to spread on toast or apples. Opt for all-natural varieties.

Trail Mix Add-In

Throw some cashews into your homemade trail mixes along with seeds, dried fruit, coconut flakes and dark chocolate.

Salads and Stir-Frys

Toast cashew pieces to add some crunch to leafy green salads or Asian-style stir fry dishes.


Add a small handful of cashews to fruit smoothies for extra nutrition and creaminess.

Energy Bars

Bind energy or protein bars together with dates, nut butters, and chopped cashews or a cashew base layer.

Cashew Cheese

Soak cashews then blend into a creamy, dairy-free cheese sauce or spread. Add spices like garlic and onion.

Enjoying cashews in minimally processed, close to raw form provides the most benefits. Be cautious of heavily salted, sugared or roasted nuts.

Potential Side Effects of Eating Too Many Cashews

What happens if you eat more than the recommended serving of cashews? Here are some possible side effects:

Weight Gain

Overdoing portions of high calorie nuts like cashews can lead to excess calorie intake and weight gain over time. Stick to the suggested 1 to 2 ounce limit.

Gastrointestinal Issues

Large servings of cashews may irritate the digestive tract in some, causing abdominal pain, cramps, bloating and diarrhea. This may indicate a personal intolerance.

Increased Inflammation

While anti-inflammatory in moderation, too many nuts every day may trigger inflammation in certain individuals, worsening conditions like arthritis, joint pain and skin conditions.

Nut Allergy Reaction

Those allergic to nuts can experience anaphylaxis and severe allergic reactions if they eat cashews. Avoid entirely if you have a nut allergy.

Higher Oxalate and Lectin Content

The oxalates and lectins in excessive cashew intake may be problematic for those prone to kidney stones and autoimmune conditions.

Drug Interactions

High magnesium foods like cashews can interfere with some medications for high blood pressure, diabetes, and antibiotics. Check with your doctor.

Higher Blood Pressure

Heavily salted cashews add excess sodium that can negatively impact blood pressure, especially in those with hypertension. Always read labels.

To reduce risk of side effects, eat cashews in moderation as part of a balanced diet based on your individual health status and tolerance.

Precautions and Risks of Eating Cashews

While generally safe for most people in normal food amounts, there are some precautions to keep in mind with cashew consumption:

  • Allergy risk – Tree nuts are a top food allergy, causing potentially life-threatening reactions in sensitive individuals. Avoid entirely if you have a cashew or nut allergy.
  • Choking hazard – Whole cashew kernels may present a choking risk for some, especially children, the elderly, and those with swallowing difficulties.
  • Contamination – Rarely, cashews may contain traces of toxins or molds. Choose reputable brands and inspect nuts before eating.
  • Digestive issues – Some experience stomach upset, diarrhea or reflux when eating cashews. Reduce portions or avoid if this occurs.
  • Salted varieties – Heavily salted cashews can contribute too much sodium for some. Monitor your total sodium intake.
  • Oxalates – Those prone to kidney stones may need to limit dietary oxalates from cashews and other high-oxalate foods.
  • Medication interactions – Cashews may interfere with some blood pressure and diabetes medications. Check with your doctor.
  • Radiation – Some cashews sourced from Brazil may have been irradiated. Choose non-irradiated nuts if this is a concern.

Being aware of these precautions and risks can help you enjoy cashews safely as part of a healthy diet. Those with sensitivities or on restricted diets should practice particular caution.

Signs You’re Eating Too Many Cashews

It’s easy to overdo portions of nuts, which are calorie dense. Here are some signs you may be eating too many cashews:

Unexpected Weight Gain – Frequent nut consumption adds calories that can lead to weight gain if it exceeds your needs.

Stomach Pain and Diarrhea – Digestive issues like cramps, bloating and loose stools may indicate intolerance to the fats or fibers in cashews.

Mouth or Throat Irritation – Raw cashews contain compounds that can irritate the mouth and throat in those sensitive to nuts.

Skin Rash or Itching – Hives, eczema flares, and skin reactions may signal a cashew allergy.

Difficulty Swallowing – Trouble swallowing cashews could indicate an obstruction or allergic reaction.

Joint Pain – Increased inflammation from overdoing nuts may worsen arthritis or joint discomfort.

Elevated Blood Pressure – Too much sodium from salted cashews can raise blood pressure.

Kidney Stones – Increased oxalates from high cashew intake can contribute to painful kidney stones.

Pay attention to signals of intolerance and reduce portion sizes or frequency if these symptoms occur. Speak with your doctor if cashews seem to trigger allergic reactions or interact with medications.


Adding a serving of cashew kernels to your diet each day can provide valuable antioxidants, healthy fats and key nutrients with research-backed health benefits. However, overdoing portions of high-calorie nuts like cashews may interfere with weight goals and trigger unpleasant gastrointestinal side effects in some individuals. Stick to the recommended 1-2 ounce limit per day, and adjust as needed based on your individual tolerance. Choosing unsalted, raw cashews and incorporating them into diverse dishes allows you to reap the nutritional perks of cashews as part of an overall healthy diet. Moderation and variety are key when enjoying cashews and other nuts.

Number of Cashews Grams Calories
10 cashews 28 g 157
20 cashews 56 g 314
30 cashews 84 g 471
40 cashews 113 g 629
50 cashews 141 g 786

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