Sleep is one of the fundamental pillars of human health. The World Health Organization (WHO) estimates that between 27% and 40% of the world’s adult population suffers from some degree of insomnia or sleep disorder.
Among the multiple factors that affect the quality of rest—stress, exposure to screens, environmental temperature—night eating has gained special attention among nutritionists and sleep specialists. Surprisingly, some fruits considered healthy can become unexpected allies of insomnia when consumed in the hours before rest.
Eating fruit is, as a general rule, a positive decision for your health. However, the when matters as much as that. Several studies in circadian nutrition – the science that studies how the time of day affects metabolism – have shown that certain foods, although nutritious, can raise blood sugar, stimulate the digestive system or activate the nervous system at times when the body should be preparing for rest.
Fruits to avoid at night
Dr. Carmen Ríos, a specialist in sleep medicine, explains that the central problem is not the fruit itself, but the nighttime glycemic load: “When the body receives a high intake of simple sugars close to bedtime, the pancreas secretes insulin, the body temperature remains high and the brain receives activation signals that antagonize melatonin.”
This phenomenon explains why many people who eat sweet fruit for dinner report nocturnal awakenings or shallow sleep.
Among the main fruits to avoid are:
Grapes. Very rich in fructose and glucose. They trigger blood glucose levels quickly, generating an energy spike that makes it difficult to fall asleep.
Pineapple. High acidity and bromelain content that stimulates digestion. May cause reflux or gastric discomfort when lying down.
Citrus. Orange, lemon and grapefruit have very low pH. Heartburn worsens gastroesophageal reflux, common when it occurs just before bed.
Mango. High glycemic index. Its abundant pure sugar activates insulin production and keeps the body in metabolic alert mode.
Ripe banana. Although it contains tryptophan – useful for sleep – when it is very ripe the sugar exceeds this benefit and can cause slow digestion.
Excess Strawberries. Moderate amounts are harmless, but in large quantities their acidity and vitamin C content (stimulant) can delay sleep.
Recommended fruits to eat at night
On the other hand, there are fruits that benefit sleep:
Cherries are one of the few natural sources of melatoninthe sleep-regulating hormone.
Kiwi is positioned as the best nighttime option. It is characterized by being rich in vitamin C and containing compounds that promote the production of serotonin, which contributes to better sleep. Its low glycemic index helps avoid insulin spikes.
Blueberries are an excellent choice. They contain polyphenols with anti-inflammatory properties and do not cause glucose spikes, which promotes a more pleasant rest.
The appleregardless of its color, is recommended for its pectin content, which improves digestion and satiety. Consuming it with skin enhances its benefits, ensuring a restful sleep.
Key recommendations
If you want to consume fruit at night, do so at least 90 minutes before bedtime, in small portions, and prefer varieties with a low glycemic index and low acidity, such as cherries, kiwi or pears. Avoid fruit juices, which concentrate sugar without the fiber that moderates its absorption.
Sleep hygiene is a set of habits that goes far beyond turning off screens. What is planned in the last hours of the day has a direct and measurable impact on sleep architecture: the proportion of deep sleep, onset latency and continuity of rest. Knowing which fruits favor or harm this process is a simple step, but with solid evidence to improve the quality of nightlife.
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