Nuts

  • A nut is defined botanically as a fruit composed of a hard shell and a seed, where the shell does not open to release the seed.
  • Nuts are very often high in nutrients because they are the source of energy for the new plant.
  • Nuts contain moderate amounts of protein (9-20%) and, with the sole exception of chestnuts, also contain large quantities of fat (49-74% total fat). However, this fat is mostly monounsaturated or polyunsaturated fat.
    Not all fat is bad for you; only saturated fat and trans fat are bad.
  • Many nuts are good sources of vitamins E and B2, and are rich in protein, folate, fiber and essential minerals such as magnesium, phosphorus, potassium, copper and selenium.
  • The most common nuts in human nutrition are almonds, Brazil nuts, cashews, hazelnuts, macadamias, pecans, pine nuts, pistachios and walnuts.
  • A health-promoting daily intake of 30-50 grams of nuts is about one small handful.
    30 g of nuts corresponds to approximately:
    • 20 almonds
    • 15 cashews
    • 20 hazelnuts
    • 15 macadamias
    • 15 pecans
    • 2 tbsp pine nuts
    • 60 pistachios in shells (30 g of kernels)
    • 10 whole walnuts or 20 walnut halves
    • a small handful of mixed nuts
  • Tree nut allergy is one of the most common food allergies in children and adults. Tree nuts can cause a severe, potentially fatal, allergic reaction (anaphylaxis).

Scientific studies on the relationship between meat consumption and disease prevention
A review article of randomized, placebo-controlled double blind clinical trials (RCTs) will answer the following question:
"Do taking dietary supplements make sense?" Yes for a positive conclusion and no for a negative conclusion.

A review article of cohort studies or case-control studies will answer the following question:
"Should I change my diet?".