Walnuts, almonds and cashew nuts not only taste good, they are also very healthy. Their fiber has a positive effect on the composition and function of the microbiome, i.e. on the community of all valuable microorganisms in the body. The many unsaturated fatty acids that nuts contain regulate your cholesterol levels. More than 40 g per day, a handful, but it should not be, because nuts are high in calories.
Mixing a few nuts into breakfast muesli, sprinkling them on salads as a topping or nibbling between meals is completely sufficient. You should not necessarily eat different nuts together as a nut mixture, but rather only one type, which you then change again and again.