Avocado & Heirloom Tomato Potassium Salad
Avocado is one of the most potassium-dense foods you can put on a plate, and it pairs with tomato and good olive oil into a five-minute Mediterranean salad.
- Mechanism
- Blood pressure
- Yield
- serves 2–3
- Ingredients
- 7
- Steps
- 4
- Cited studies
- 3
- Course
- Salad
Potassium is the mineral with the most consistent relationship to blood pressure: systematic reviews link higher intake to lower blood pressure and to reduced stroke risk. Avocado is unusually potassium-dense for a fruit, which is what puts it at the center of a salad like this rather than off to the side.
The DASH trial showed what happens when a whole diet is built around produce of this kind — blood pressure came down on the strength of the pattern itself (New England Journal of Medicine, 1997). Good extra-virgin olive oil adds the polyphenols central to Mediterranean-style eating, a pattern associated with lower mortality in a large European cohort study. The effect of any single salad is small; the pattern is what matters.
Why this works
The combination works the potassium angle from two directions: avocado is the dense source, and the tomatoes contribute their own alongside everything else they carry. Avocado's fat is not incidental either, since it makes the plate substantial enough to be a meal rather than a side. Uncooked extra-virgin olive oil is the polyphenol carrier, which is why it is poured over at the end rather than heated. Red onion soaked in cold water gives sharpness without harshness, and basil, lemon and black pepper finish the dish without a grain of salt.
Ingredients · serves 2–3
- 2 ripe avocados, sliced
- 1 lb mixed heirloom tomatoes, cut into wedges
- ¼ red onion, very thinly sliced
- A handful of fresh basil
- 2 tbsp good extra-virgin olive oil
- Juice of ½ lemon
- Cracked black pepper, a pinch of chili flakes
Method
- Soak the sliced onion in cold water for 5 minutes to take the edge off, then drain well.
- Arrange the tomato wedges and avocado slices on a platter.
- Scatter the onion and torn basil over the top.
- Dress with olive oil, lemon and plenty of black pepper right before serving.
Getting the most from it
Use the best extra-virgin olive oil you have, and use it uncooked — the peppery bite at the back of your throat is the polyphenol content announcing itself, and heat and time are what destroy it. Buy it in dark glass, keep it away from the stove, and dress the salad just before it goes to the table. Ripe tomatoes at room temperature also taste of far more than cold ones.
Nutrition Facts
Calculated for one serving from USDA FoodData Central values for the ingredients above. An estimate, not a lab analysis.
How this was calculated. Each ingredient was converted to grams, matched to a food in USDA FoodData Central (SR Legacy, April 2018), summed, and divided by 3 servings. Cooking losses, draining and the real size of a handful all move these numbers, so treat them as a good estimate rather than a measurement. Added sugars count honey, maple syrup and table sugar only; sugar from whole fruit is not an added sugar.
- Avocados, raw, all commercial varieties
- Tomatoes, red, ripe, raw, year round average
- Onions, raw
- Basil, fresh
- Oil, olive, salad or cooking
- Lemon juice, raw
19 PubMed citations
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19 PubMed citations
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21 PubMed citations
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The research behind this recipe
Primary sources for the claims above. Effects reported in these papers describe the compound or the dietary pattern studied — not this specific dish.
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