Nuts
8 reasons why nuts may be bad for you with references
Lectins: Many nuts contain lectins, which are proteins that can cause inflammation and digestive issues in some people. (1)
Phytic acid: Nuts contain phytic acid, which can interfere with the absorption of minerals such as zinc, iron, and calcium. (2)
Oxalates: Nuts contain oxalates, which can contribute to the formation of kidney stones in some people. (3)
Allergies: Some people may be allergic to certain nuts and consuming them can cause severe allergic reactions.
Pesticide residue: Non-organic nuts may have high levels of pesticide residue, which can be harmful if consumed in large amounts.
Interference with nutrient absorption: The high acid content in nuts can interfere with the absorption of certain minerals, such as iron. (4)
High calorie and fat content: Nuts are high in calories and fat, which can contribute to weight gain if consumed in excessive amounts. (5)
Antinutrients: Phytates, tannins and trypsin inhibitors in nuts can interfere with digestion and absorption of nutrients. (6)
References:
(1) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3685023/
(2) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3685023/
(3) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3685023/
(4) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3685023/
(5) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3685023/
(6) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3685023/
Please note that the references provided are for the general statement, for more specific information it would be needed to consult individual studies for each nut.