Does all the energy in the food people eat come from the sun?

Strictly speaking, except for geothermal energy and atomic nuclear energy, all other energy sources on the earth come from solar energy, including not only direct solar radiation, but also fossil fuels, water energy, wind energy, ocean energy, and tides. Indirect solar resources such as energy also include the energy fixed by the photosynthesis of green plants, that is, biomass energy, which is the form of energy stored in biomass in the form of chemical energy. Our plant food is this part of solar energy, and animal food is also Harvesting solar energy from plants. The three major energy substances in food (carbohydrates, proteins, and fats) undergo hydrolysis and oxidation in the human body, releasing chemical energy. Most of it is emitted in the form of heat energy to maintain our body temperature, and part of it is stored in the high-energy compound ATP. Provide energy required for life activities. This process is that we use the chemical energy of solar energy in plants and store the energy for our own use. On the other hand, I think the substance of the food itself is also very important, that is, we convert the nutrients in the food into its own constituent substances, and assemble the small molecules that the food is broken down into into its own macromolecules such as proteins, nucleic acids, fats, etc. Includes mineral elements. Then the main question will be discussed from these two aspects. Plant photosynthesis energy storage: With the advancement of science and technology, the "artificial light sources" mentioned above can also be used and stored by plants. The energy of artificial light sources can be converted through geothermal energy or nuclear energy, and is not limited to solar radiation energy; the energy of the plants themselves Compound composition: The elements on the earth can be said to have come from the Big Bang or supernova explosions, not all from the sun. Personally, I think that the same is true for plants grown with light sources provided by the sun, even wind and thermal power generation. Think about it, the emergence of wind energy is the function of heat in the atmosphere, and heat, obviously; the minerals needed for fire are from earlier Remains of plants and animals, obviously the sun was the basis of their existence. As for the generation of geothermal, tidal, and nuclear energy, who can guarantee that the formation of our earth and the formation and evolution of this blue planet that has existed in the solar system for 5 billion years have nothing to do with the sun? !