Can walnuts and lychees be eaten together?
Generally speaking, walnuts and lychees can be consumed together, but attention should be paid to controlling the intake quantity. Detailed analysis is as follows:

Walnuts are rich in high-quality protein, unsaturated fatty acids, vitamin E, and various minerals, which help to replenish nutrients and enhance brain function. Lychees contain glucose, vitamin C, and iron, which provide energy and improve immunity. When consumed in appropriate amounts together, they can enrich nutrient intake and are unlikely to cause adverse reactions if not consumed in excess.
For individuals who are obese or have hyperlipidemia, excessive consumption of walnuts (which are high in oils) together with lychees may increase the caloric and fat intake burden. People with diabetes should be cautious, as lychees have a high sugar content, and excessive consumption together with walnuts may lead to blood sugar fluctuations. For individuals allergic to nuts, eating walnuts may trigger allergic reactions such as rashes and throat swelling allergy.
In daily diets, it is important to maintain balanced nutrition and diverse food intake, avoiding excessive consumption of any single food item to promote overall health.