120 calories are very low, equivalent to about 0.1 grams of rice.
120 calories are equal to 0.12 kcal, and every 100 grams of rice contains about 116 kcal, so 120 calories are equivalent to about 0.1 grams of rice. Also it is equivalent to 0.05 grams of steamed bread, 0.2 grams of sweet potatoes, etc.
Adults need 1500 to 1800 kilocalories a day to meet the body’s metabolism, if the energy intake is insufficient will lead to malnutrition, the body’s immune system decline is serious, may cause anemia leading to dizziness, fatigue, fainting and so on.
So even if you lose weight, do not over-diet, must be enough energy intake, maintain nutritional balance, eat more fresh fruits and vegetables; appropriate supplementation of miscellaneous beans, potatoes, all kinds of animal products; daily ensure that the intake of milk, soy products, nuts, etc.; less oil and less salt.