You’ve probably heard about juice cleanses or detox programs that flush toxins from the body. The trend’s taken off, and the benefits are genuine.

But there’s more to juice than its detoxifying qualities; and you don’t need to pay exorbitant prices for pre-bottled concoctions to get those benefits, either. By juicing your own fruits and vegetables to supplement your regular diet, you can improve your general health or even target specific areas, like the immune system. Here, a few of our favorite nutritionist-approved recipes.

Check out: 5 Essential Juice Recipes for Fit Guys>>

1. FOR IMMUNITY...

“You want to make sure your juice has beta-carotene, vitamin C, and vitamin E,” says Angela Ginn, R.D. You can increase its beta-carotene kick and sweetness by adding mango, apricot, or both.

Ingredients:

  • 1 golden beetroot
  • 3 large carrots
  • 4 stalks celery
  • ½ cucumber
  • ½ thumb of giner
  • 1 medium pear

Nutrition: 161 Calories; 5g Protein; 50g Carbs; 1g Fat; 2g Fiber.

NEXT: A Juice Recipe for Better Cognition

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2. FOR COGNITION...

Look for foods with antioxidants that boost cognitive function by increasing blood flow to the brain. Beets, a natural vasodilator, are a great starting point, but you have other options, too. “It would be more of your blueberries and blackberries,” says Ginn. You can also enrich your juice with potassium from sources like bananas or coconut water to keep your brain cells firing efficiently.

Ingredients:

  • 1 beetroot
  • 1 sweet potato
  • 3 medium carrots

Nutrition: 93 Calories; 3g Protein; 27g Carbs; 0g Fat; 1g Fiber.

NEXT: A Juice Recipe for More Energy

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3. FOR ENERGY...

Energy is calories,” says Andrea N. Giancoli, R.D., “but there are some vitamins and minerals that are important for the release of energy and for metabolizing foods so we can get energy— vitamins like b2 and b6, and minerals like magnesium and copper. And you can find all of those in spinach.” Pumpkin and sweet potato would be good additions, too, with low-glycemic carbs for sustained energy.

Ingredients:

  • 1 apple
  • 2 large carrots
  • 2 stalks celery
  • ½ cucumber
  • 2 cups spinach

Nutrition: 93 Calories; 3g Protein; 27g Carbs; 0g Fat; 1g Fiber.