Often times, G-nuts are vended in Rwanda while roasted and packed in basic polythene. The vendors normally teenage boys hawk from street to street and sometimes are seen waiting near bars.
There has also been a common rumour that these G-nuts can boost male fertility. But how true has been this long held assertion?
Rovira i Virgili University in Spain conducted a detailed study to assess this validity of this long held claim and the eventual study results were presented at a meeting of the European Society of Human Reproduction and Embryology in Barcelona.
For the study, researchers recruited 119 men aged 18-35, who they divided into two groups.
One group ate 60 grammes of almonds, hazelnuts, and walnuts daily on top of their usual “western-style” diet, while the second group got no nuts.
After 14 weeks, the nut group “had significant improvements in their sperm count, vitality, motility (movement) and morphology (shape)” — all associated with male fertility, said a statement.
“Moreover, the subjects in the nut group also showed a significant reduction in their levels of sperm DNA fragmentation, a parameter closely associated with male infertility.”
The results were consistent with sperm improvement observed in other studies that looked at diets rich in omega-3, antioxidants such as vitamin C and E, selenium and zinc, and folate.
Nuts are rich in many of these nutrients.
Does this mean that men hoping to conceive a child should add nuts to their diet?
“We can’t yet say that,” said study co-author Albert Salas-Huetos of the Rovira i Virgili University in Spain.
“But evidence is accumulating in the literature that healthy lifestyle changes such as following a healthy dietary pattern might help conception — and of course, nuts are a key component of a Mediterranean healthy diet.”