While almonds are a healthy source of vitamins and fats, eating too many can have unintended consequences, such as weight gain, interactions with medications, vitamin E overdose and gastrointestinal problems, according to MD-Health.com. Packed with 14 grams of fat and 163 calories per ounce, it is important not to overdo it on these nutritional powerhouses to avoid possibly dangerous consequences.
The daily recommended serving of almonds is 1 ounce. Consuming more than this can lead to weight gain, according to MD-Health.com. Almonds are rich in manganese, a mineral that can interact poorly with many medications, including antipsychotic drugs, antacids, laxatives and some antibiotics and blood pressure medications. One serving of almonds contains 0.6 milligrams of manganese. The daily recommended dosage of the mineral is just 1.8-2.3 milligrams of manganese daily, making it important not to over-consume almonds.
MD-Health.com explains that almonds are a great source of vitamin E, with 1 ounce containing over half of the recommended daily dose of the vitamin; however, if consuming a lot of items rich in vitamin E, such as fortified cereals, eggs and spinach, it is possible to overdose on the vitamin. Symptoms of vitamin E overdose include lethargy, headaches, diarrhea and excessive gas.
Almonds are a great source of fiber in the diet, according to MD-Health.com, but eating too many can cause constipation and bloating. Drink plenty of water when eating a diet rich in almonds to ensure the body can process the fiber.