This uses ripe papaya, and that matters. Papaya's phase III trial was of the leaf extract, which is not the fruit, and unripe green papaya is safer avoided in pregnancy.
2 servings15 min
Halve the papaya, scrape out the seeds with a spoon and peel it. The seeds are not used.
Cut the flesh into 2 cm cubes. Overripe fruit collapses, so one that yields slightly to a fingertip is right.
Slice the cucumber with the peel on, on the diagonal, 5 mm thick. The vitamin K and fibre are towards the skin.
Toast the peanuts in a dry pan for 3 minutes and break them up roughly. No oil.
Put the papaya and cucumber in a bowl with 2 tbsp of lime juice and the salt and fold gently.
Do not keep tossing. The papaya breaks up and the cucumber weeps.
Scatter the peanuts, chilli and coriander over at the end. Mixed in early, the peanuts go soft.
Eat it now. Left standing, the cucumber waters it down.
This salad is made with ripe papaya, and that matters.
Southeast Asian som tam uses unripe green papaya. This recipe does not: it uses papaya ripened to orange. The reason is below.
First, the evidence on papaya, stated precisely.
2026, JCO Global Oncology carried a phase III, triple-blinded, placebo-controlled, multicentre trial. Of 219 patients with chemotherapy-induced thrombocytopenia, 198 were analysed, and platelet recovery by day 4 was 59% against 44% (p=0.042).
It is a well-designed trial. But what it used was papaya leaf extract.
Evidence that eating papaya raises platelets is something this site could not find. This salad is not built for that effect.
So why make it? For the composition and the pairing.
Per serving:
| Per serving | |
|---|---|
| Papaya 150 g | 65 kcal, vitamin C 91 mg, lycopene 2,745 µg |
| Cucumber 100 g | 15 kcal, 95.2% water |
| Peanuts 10 g | 57 kcal, protein 2.6 g |
| Lime juice and seasoning | about 8 kcal |
| Total | about 145 kcal, vitamin C 91 mg or more |
That is 91 mg of vitamin C a serving. Against an adult requirement of around 100 mg, one plate is almost the day. The lime juice adds more.
Which is why nothing is cooked. Vitamin C is heat-sensitive and water-soluble. The most certain figure in this salad is the vitamin C, so heating it throws that away.
Why the cucumber. Papaya is soft and sweet, and on its own it cloys fast. Cucumber's crunch and near-absence of flavour fill that gap. And at 15 kcal per 100 g it barely moves the total.
From here is the safety part.
First, in pregnancy, eat only ripe papaya.
The latex in unripe green papaya has a record of being linked to uterine contraction. It is not settled in people, but there is no reason to take a risk where the data is thin.
Second, cross-reaction with latex allergy.
Papaya contains latex components, and people allergic to natural rubber latex have been reported to react to papaya. This is latex-fruit syndrome, and banana, avocado, kiwi and chestnut are on the same list.
If latex gloves have ever given you a reaction, be careful the first time.
And this salad contains peanuts. Peanut allergy is common and can be severe. Say so when serving guests. Toasted pumpkin seeds or sunflower seeds work instead.
Third, the papaya seeds are not used. They taste peppery, but animal research has reported effects of high doses on sperm, and human safety data is not adequate.
Choosing. The skin should be turning from green towards yellow and yield slightly to a fingertip. If it is fully green, do not use it for this recipe.
Ripen at room temperature. The fridge stops it where it is.
If papaya's characteristic smell bothers you, add more lime juice. The acid tames it.
Do not slice the cucumber ahead. It weeps and waters the salad down.
Fruits
Early researchA phase III, triple-blinded, placebo-controlled trial in 219 patients was published in 2026. Platelet recovery was faster in patients whose counts had fallen from chemotherapy. But what it used was papaya leaf extract, and this entry is about the fruit.
Vegetables
Nutrition dataAll three clinical trials on cucumber used extracts. The lipid trial used seed extract; the osteoarthritis trials used standardised extract. This site could not find a trial that fed cucumber, measured anything and compared against a control.
Nuts & seeds
Strong evidenceAcross three cohorts of 206,000 people, mortality risk ran 17–21 % lower. Peanut butter showed no such association.