Ginger, Avocado and Orange in One Glass: The Smoothie That Goes Straight to Where Your Immune System Lives

Here is a fact that surprises most people: roughly 70% of the body's immune cells are found in and around the gut. That means what you put on your plate, or in your glass, matters more for your seasonal well-being than many of us realize. And yet many vitamin-packed drinks miss one simple detail: it is not enough to consume nutrients if your body cannot absorb them well. This smoothie was built with exactly that in mind.

One of the best-known fans of this kind of eating is seven-time Super Bowl champion Tom Brady. His former personal chef Allen Campbell revealed that around 80 percent of what Brady and his family eat is vegetables, and avocado is a constant in his kitchen, from his favorite guacamole recipe in The TB12 Method to blended treats like avocado "ice cream". Brady has often credited his food choices as part of what helped him keep playing at the top level well into his forties. You don't need to follow a professional athlete's regimen, but the principle behind it is easy to borrow: plenty of plants, paired with healthy fats.

Many of our readers who started making a glass like this on autumn mornings describe it the same way: it is quick, filling, and it has become a small daily ritual they look forward to rather than a chore.

Why These Three Ingredients Belong Together

Oranges are not just tasty fruit; they also contain plenty of vitamin C and fiber, which are very important for the body, especially in autumn, when seasonal colds are most common. According to the NIH Office of Dietary Supplements, vitamin C contributes to the normal function of the immune system and acts as an antioxidant. Citrus fruits are among its best natural sources, as you can check in the USDA FoodData Central database. A useful tip: leave as much of the white pith on the peeled orange as you can, as this part is rich in fiber and naturally occurring plant compounds called flavonoids.

Ginger has a long tradition of use for supporting the digestive tract. The U.S. National Center for Complementary and Integrative Health (NCCIH) notes that ginger has been studied mainly for its effect on nausea and digestive comfort, and its warming, slightly spicy flavor makes it a natural fit for autumn drinks. Because a large share of immune cells reside in the gut, as described in a review published in Clinical & Experimental Immunology, it makes sense to add ginger to your daily diet more often. If you like it, you may also enjoy our Warm Water with Turmeric Against Winter Troubles or the zesty Juice with cayenne pepper that boosts metabolism.

And if we add the healthy fats of avocado combined with lettuce, we get a true vitamin bomb. What sets it apart from many similar vitamin mixes is the fact that it contains an ingredient that helps the body absorb more of what the other ingredients offer.

The Secret Ingredient Is Fat, the Healthy Kind

It is not enough to eat vitamins if the body cannot use them. Some nutrients, namely vitamins A, D, E and K and plant pigments called carotenoids, are fat-soluble, which means they are absorbed far better when eaten together with some fat. (Vitamin C, by contrast, dissolves in water, so the orange does its job either way.) You can read more about this distinction on MedlinePlus, a service of the U.S. National Library of Medicine.

This is where avocado shines. In a well-known study published in the Journal of Nutrition (Unlu et al., 2005), researchers at The Ohio State University found that adding avocado to a salad significantly increased how much lutein, alpha-carotene and beta-carotene participants absorbed compared with the same salad eaten without it. A follow-up study, reported by NutraIngredients, found that avocado also appeared to help the body convert beta-carotene into an active form of vitamin A. Leafy greens such as lettuce are a natural source of these carotenoids, which is exactly why avocado and lettuce make such a good team in this glass.

This pairing principle works with many other foods too. If you would like to dig deeper, see our guides Foods That Improve Nutrient Absorption and The Kitchen Trick Your Body Is Begging You to Learn.

How to Make the Vitamin Bomb

Ingredients:

• 1 peeled orange (leave as much of the white pith on it as possible)


• 1 to 2 centimeters (about half an inch) of grated fresh ginger


• 1/4 avocado


• 2 cups of lettuce, cut into small pieces


• 1 cup of milk, almond or coconut milk, or kefir

Preparation:

When preparing it, you only need to pay attention to one thing: speed. Put all the ingredients into a blender and blend until you get a smooth, even mixture. Drink it right away, because vitamin C is sensitive to oxygen, light and heat, and some of it is gradually lost once the fruit is cut and blended. If you can't drink it all at once, or you want to make a supply for the day, store the drink in an airtight container, filled to the top, in the refrigerator.

Tips from the kitchen:

• Kefir instead of milk: if you choose kefir, you also add live cultures. The NCCIH overview of probiotics explains what is currently known about them and the gut.


• Don't over-blend: a long, hot blending cycle warms the drink. Blend just until smooth, and add a few ice cubes if your blender tends to heat up.


• Swap the greens: spinach or kale work well instead of lettuce. For another vitamin C and greens combination, try our Green Kiwi Smoothie: A Simple Way to Help Your Body Get More Out of Plant Iron.


• Too spicy? Start with 1 centimeter of ginger and increase it gradually as you get used to the flavor.

Looking for a lighter version without avocado? Our earlier recipe Summer flu due to air conditioning? 3 ingredients that strengthen the immune system uses only orange, ginger and lettuce.

A Few Sensible Notes

This smoothie is a tasty way to add more fruit and vegetables to your day, but no single drink replaces a varied diet, good sleep, regular movement and fresh air. If you take blood-thinning medication, have a known allergy, are pregnant, or have a digestive condition, check with your doctor or pharmacist before regularly consuming larger amounts of ginger or making big changes to your diet.