If you’re navigating sleep challenges for a child with ADHD or yourself, you’re not alone. Nutrition plays a bigger role in sleep than many people realise. Think of sleep as a relay race, with multiple nutrient “runners” passing the baton to help you drift off, stay asleep, and wake refreshed. When one runner drops the baton, the whole relay slows down.

The Sleep Relay: Who are the Nutrient Runners?

Runners 1 & 2 — Getting Ready for Sleep

  • Vitamin D: Regulates the circadian rhythm (the body’s clock). Adequate vitamin D helps signal when to be awake vs. asleep. Deficiency can contribute to a delayed sleep pattern, especially in winter months.

  • Vitamin B12: Helps keep the sleep-wake cycle on track and may reduce delayed sleep phase.

Runners 2, 3 & 4 — Making Sleep Feel Ready

  • Zinc: Necessary for melatonin production, the hormone that makes you feel sleepy at bedtime. Deficiency is relatively common in children with ADHD.

  • Vitamin B6: Supports zinc’s role in melatonin production. Low B6 can delay sleep onset and may be associated with disruptive dreams or night disturbances.

  • Omega-3s (EPA/DHA): Help regulate melatonin production and the body clock. Adequate omega-3 intake supports sleep initiation.

Runners 5 & 6 — Actually Falling Asleep

  • Magnesium: Calms overactive neural activity and can help quiet the mind for sleep. Deficiency is common and may contribute to a “wired” feeling at bedtime.

  • Glycine: Signals the body to prepare for sleep and can improve sleep quality and ease of onset.

Runners 7 & 8 — Staying Asleep

  • Iron: Supports dopamine production and can reduce restlessness and nighttime tossing. Iron deficiency is more common in ADHD, particularly among girls.

  • Magnesium (revisited): Supports muscle relaxation and helps prevent physical tension that can wake a child.

Runners 9 & 10 — Sleep Quality and Restoration

  • Choline: Supports healthy cycling through deep and REM sleep stages. Deficiency can leave sleep feeling shallow and mornings less refreshing.

  • Glycine (revisited): Increases time spent in deep, restorative sleep; can reduce overall sleep fragmentation.

  • Omega-3s (revisited): Supports proper sleep architecture, including deeper sleep stages.

Key takeaways

  • Realistic expectations: Even when sleep hygiene basics are in place (dark room, screens off, consistent bedtime), nutrient status matters. If gaps exist in several runners, progress may be slower and require more time (weeks to months) rather than days.

  • Primary sources first: For most, food is the preferred source of these nutrients. Supplements should be considered only under medical guidance, particularly because ADHD can involve multiple simultaneous nutrient gaps.

  • Individual variation: ADHD often coincides with multiple subtle nutrient deficiencies. Improvements in sleep timing, sleep onset, and sleep quality may reflect combined effects across several runners rather than a single nutrient.

What this means in practice

  • Prioritize nutrient-rich, sleep-supportive foods:

    • Vitamin D: fatty fish, fortified dairy or plant milks, egg yolks, mushrooms exposed to sunlight.

    • Zinc: meat, shellfish, legumes, seeds, and dairy.

    • Vitamin B6: poultry, fish, potatoes, bananas, and fortified cereals.

    • Magnesium: leafy greens, nuts and seeds, whole grains, beans, and fortified foods.

    • Omega-3s: fatty fish (salmon, sardines), flaxseeds, chia seeds, walnuts; consider algae-based DHA if you follow a vegetarian/vegan path.

    • Choline: eggs, lean meat, fish, dairy, and certain legumes.

    • Glycine: bone broth, soy products, and high-protein foods; some foods naturally provide small glycine amounts.

  • Be mindful of supplementation: If a clinician recommends supplements, start with the lowest effective dose and monitor for effects over several weeks. Do not start any supplement without medical guidance.

  • Patience matters: Expect a gradual timeline. It can take weeks to a few months to notice meaningful changes in sleep patterns as the body adjusts and nutrient levels improve.

Important caveat

  • This content is intended for educational purposes and should not replace professional medical advice. Please consult your child’s pediatrician or a qualified clinician before changing your child’s diet or starting supplements.

This is a recipe taken from my book, which will be published in February. It is fantastic for sleep.

Liquid fuel - Sleepy time drink

1 cup milk (dairy or fortified soy milk),1 tbsp raw cacao powder, 1 tbsp collagen, 1 tsp blackstrap molasses, 1 tsp tahini or cashew butter, A pinch of sea salt.

How: Heat the milk to hot but not boiling. Add all ingredients and blend it until smooth and frothy.

Drink an hour or so before bed.

Why: The collagen provides 3,000mg of glycine - a calming chemical that helps your overactive brain to switch off. It works a little like a dimmer switch for racing thoughts, and it lowers your body temperature by a fraction (which signals "time to sleep") and helps you fall asleep faster without grogginess the next day.

The magnesium from cacao and tahini helps both your body and mind feel a little calmer and more relaxed. And the zinc in tahini helps soften overstimulation, reduce that “can’t settle” feeling, and make it easier for the calming ingredients, like glycine and magnesium, to do their job.

The iron from molasses stops Restless Leg Syndrome (RLS) that fidgety feeling 70% of ADHD people get. (Low iron can affect your circadian rhythm.) The tryptophan in milk becomes melatonin, and it also makes the collagen a complete protein.

Together, these help tackle the four ADHD sleep problems: racing thoughts (glycine), physical restlessness (magnesium and iron), can't fall asleep (tryptophan), and poor sleep quality (all of the above).

This drink isn't a "sleeping tablet." You won't see instant results. Most people tend to fall asleep 15-30 minutes faster within a week. After 2-4 weeks, sleep can start to become genuinely restorative. Better sleep helps everything; focus, emotional meltdowns, impulsivity, energy.

Tips: My mum used to give me blackstrap molasses as a child and I hated it so, when I first came across this recipe it was a firm nope. Then I did the "chaining" that can be so helpful for the kids. It took less than a week to get used to full recipe.

If blood sugar is an issue but you want to further sweeten this drink, you can add a couple of soaked dates to the mixture.


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