Beat the afternoon slump and support your heart health with these expert-backed snack ideas.
Reviewed by Dietitian Lisa Valente, M.S., RD
Key Points
- Choosing balanced afternoon snacks can help keep our hearts healthy.
- Heart-healthy snacks should include a mix of protein, fiber and healthy fats.
- Limit added sugar, refined grains, and too much sodium in your afternoon snack.
What you eat in the afternoon can shape how your heart–and energy levels–feel the rest of the day. Many people reach for sugary snacks or skip eating altogether. Both habits can work against heart health by stressing the body, destabilizing blood sugar, and contributing to poor metabolic health over time.
Choosing balanced snacks with heart-healthy ingredients like nuts, seeds, fiber and whole grains can help keep cholesterol levels in check, support a healthy weight and keep you full longer–all of which benefit heart health. To share more of the best afternoon snacks for heart health, we dug into the science and spoke with cardiologists.
1. Unsalted Nuts
Nuts, like almonds and walnuts, are well-researched heart-healthy snacks. They have unsaturated fats, fiber, and plant compounds that help support healthy cholesterol levels and reduce inflammation.1
Kunal Lal, MDcalls almonds “a tasty, crunchy snack I often recommend,” noting that they are “rich in heart-healthy monounsaturated fats and provide fiber.”2 He often tells patients that “swapping chips for almonds can satisfy the desire for crunch while supporting heart health.”
This goes along with advice shared by Johanna Contreras, MDwho emphasizes choosing natural foods, as opting for minimally processed snacks for heart health is important.
Walnuts offer similar benefits to almonds, including plant-based omega-3 fats, which can help lower your risk of heart disease by helping promote healthy cholesterol levels.3
An ideal portion of nuts is one small handful, or one ounce. Two tablespoons of nut butter count as well. Choose varieties without added salt or sugar.1 Try enjoying a handful of almonds with a sliced pear, spreading nut butter on whole-grain crackers, or sprinkling chopped walnuts onto yogurt.
2. Veggies with Hummus
Vegetables are often overlooked at snack time, yet they are one of the most heart-supporting food groups.
Contreras highlights vegetables as a great option, sharing that “vegetables are ideal for snacks, such as celery or carrots with hummus.” Pairing vegetables with hummus adds a little bit of plant protein and additional fiber, creating a more balanced snack.
Fiber also helps lower LDL (known as “bad”) cholesterol and makes you feel full longer, which makes you less likely to overeat later in the day.4 Aiming for at least 3 grams of fiber in your snack is a good goal. Try dipping baby carrots, cucumbers, or sliced peppers in hummus or another bean-based dip.
3. Fruit
Fruits like berries provide fiber, minerals and antioxidants that support vascular function and reduce oxidative stress–key factors in long-term heart health. Polyphenols may also help reduce the risk of type 2 diabetes.5
Contreras says one snack she often recommends is “berries with plain Greek yogurt.” The benefits of blueberries, in particular, for heart health are well-documented; they help keep blood vessels flexible, reduce inflammation, and support healthy blood pressure levels.6 Additionally, blueberries give you carbs for energy and fiber to help you stay full.
Lal calls out mango, noting that it “is full of fiber, potassium, and antioxidants like vitamin C–nutrients that support heart health.”7 He adds that antioxidants “protect blood vessels from oxidative stress and inflammation.”
Buying frozen fruit is cost-effective and delivers the same nutrients. Make sure to pair fruits with protein or a healthy fat to make your snack more satisfying and prevent blood sugar spikes. Try fruit with yogurt, a handful of nuts, or on top of chia pudding.
4. Whole-Grain Toast or Crackers with Avocado
Whole-grain breads and crackers are a smart afternoon snack base because they provide fiber and slow-digesting carbohydrates that help maintain steady energy levels.
When paired with avocado, the snack delivers an additional heart-protective boost. “Avocados are high in monounsaturated fats, dietary fiber and potassium,” says Lal. He explains that “the fiber aids in lowering cholesterol, [while] the potassium found in avocados helps regulate blood pressure.”8,9
One of Lal’s practical tips is to “mash avocado on whole wheat toast or make guacamole as a veggie dip.” Whole-grain crackers also contain B vitamins that help your body convert food into usable energy, while the fiber helps support ideal cholesterol levels and gut health.10 Crackers are convenient to take with you to work or when you’re out and about, and they pair easily with other snack foods.
Make sure to check the label to ensure the crackers are lower-sodium and include whole grains as the first ingredient. In addition to avocado, you can pair crackers or toast with nut butter or cheese.
What Makes a Heart-Healthy Afternoon Snack
To build a heart-healthy afternoon snack, both cardiologists have a few practical tips you can apply:
Combine fiber-rich carbohydrates with protein and healthy fat to stabilize blood sugar and support cholesterol balance.
Lal also advises patients to “limit foods high in saturated fat–which can directly increase total and LDL cholesterol.” He shares that “foods like red meats, processed meats, sweets like ice cream and baked goods, and full-fat dairy products should also be kept to a minimum.”
Finally, plan ahead. Contreras encourages patients to “pack snacks in advance to reduce the likelihood of grabbing convenience items that are full of sugar and empty calories.”
Here is a framework you can use to build a heart-healthy snack:
- Include at least one of these:
- Healthy fats: nuts, seeds, avocado, olives
- Fiber-rich foods: fruit, veggies, whole grains, beans or legumes
- Protein: Strained Greek-style yogurt, nuts, cheese, legumes
- Combine food groups when possible. Aim for at least two of the following:
- Protein
- Fruits
- Vegetables
- Whole Grains
- Healthy Fats
- Limit added sugars and excess sodium. Choose snacks with:
- Minimal added sugars
- Less than 20% of the Daily Value of sodium
Our Expert Take
Afternoon snacks aren’t just about avoiding hunger–they’re a daily opportunity to actively support heart health.
The right foods can help stabilize blood sugar, provide nutrients linked to healthy cholesterol and blood pressure, and reduce the likelihood of overeating later in the day.
Over time, those small daily choices can add up to meaningful cardiovascular benefits. Focusing on simple combinations of fiber, healthy fats, and protein can turn the afternoon slump into a steady, heart-supporting routine.
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