Macadamia Nuts

Macadamia (Macadamia integrifolia)
Type: Nut (Seed)
Used In: Bliss Balls

Origin

Macadamia nuts are native to the subtropical rainforests of northeastern Australia and are the only widely cultivated food crop indigenous to the continent. Today, macadamias are grown in tropical regions worldwide, including South Africa, Hawaii, and California. MyGemBox sources macadamias from regenerative farms committed to ethical and sustainable agricultural practices.

Primary Benefits

  • Heart Health: Rich in monounsaturated fats, macadamias are beneficial for heart health, helping to support healthy cholesterol levels and reduce LDL cholesterol.

  • Nutrient-Rich: High in manganese, thiamine (B1), and magnesium, which are essential for metabolic function and energy production.

  • Nervous System Support: These nuts nourish the nervous system, offering potential benefits for those experiencing fatigue or stress.

  • Antioxidant Properties: Contain compounds like tocopherols and squalene, which act as powerful antioxidants, protecting cells from oxidative damage.

  • Inflammation Reduction: Regular consumption may help reduce inflammation and support overall bodily resilience.

Traditional Use

Macadamia nuts have long been a staple in Aboriginal Australian diets. The plant was considered a sacred food, used both as a nourishment source and in ceremonial practices. Today, macadamia nuts continue to be regarded as a vital food, valued for their strength-building properties in both culinary and healing traditions.

Contraindications

  • Allergic Reactions: Macadamia nuts can cause allergic reactions in sensitive individuals. Always exercise caution, especially for those with nut allergies.

  • Toxicity to Pets: These nuts are toxic to dogs and cats. Even small amounts can cause serious health issues such as tremors, vomiting, and paralysis.

  • Raw Macadamias: Commercially available raw macadamias are typically steam-treated for safety purposes to eliminate harmful toxins.

Scientific Insight

Macadamia nuts are made up of over 75% fat, predominantly in the form of heart-healthy monounsaturated fats, which are linked to improved cardiovascular health. They also contain rare antioxidants like squalene and tocotrienols, along with vital minerals such as manganese and thiamine. These nutrients support energy metabolism, promote nerve health, and enhance overall wellness.

Nutritional Highlights (per 100g):

  • Energy: 740 kcal

  • Fats: 76g (mostly monounsaturated)

  • Protein: 8g

  • Fiber: 9g

  • Thiamine (B1): 104% RDI

  • Manganese: 195% RDI

  • Magnesium, Iron, Phosphorus: High concentrations

Energetics

Macadamias are considered warming and moistening, making them ideal for those who need to build strength and nourish the nervous system. They are particularly beneficial during times of depletion or fatigue, helping to restore grounded energy and enhance vitality.

Bibliography / References

  • USDA National Nutrient Database

  • Wikipedia contributors. Macadamia

  • Shigeura, G.T., & Ooka, H. (2014). Macadamia Nuts in Hawaii

  • Schüler, P. et al. (2014). Structure-Function of Macadamia Seed Coats, PLOS ONE

  • Journal of Allergy and Clinical Immunology (2021)

  • FDA Dietary Guidelines, 2024

  • The Spruce Pets – Macadamia Toxicity

  • South African Macadamia Growers’ Reports (2025)